41 in words. How to write numbers in words? English account. Compound Cardinal Numbers in English

"Everyone must to one
Know the numbers up to the number five -
Well, at least for
To distinguish marks

V. Vysotsky
"Alice in Wonderland"

Paraphrasing the words of a famous poet, we can say that everyone should know not just numbers, but also how numbers are spelled correctly, consisting of these same numbers and so often used in various documents. To understand when and how to write numbers in the text of individual documents, you must first understand what forms of writing numbers in the text are used.

There are three number writing forms in the text:

digital;

alphabetic (verbal);

alphanumeric.

In digital form, predominantly quantitative numbers are written, for example, “We confirm that our company received 3 tons of cement.”

In verbal form, all the numbers with which the sentence begins are written, especially the first in the paragraph, for example: “Ten machines must be sent to the branch of the Ekotekhnika enterprise in Pskov.”

Alphanumeric form representations of numbers are preferred when large round figures are given. For example, 50 billion rubles, 50 thousand rubles, 10 million rubles are easier to read than 50,000,000,000 rubles.

Arabic and Roman numerals

At writing numbers Arabic or Roman numerals are used. The choice of one or another type of numbers is determined mainly by tradition or the magnitude of ordinal numbers. Agree that no one will dispute the inconvenience of using Roman numerals when denoting large numbers.

Nowadays, in the texts of documents, as a rule, Arabic numerals are used. But numerals, denoted by Roman numerals, have a place to be. Note that Roman numerals do not represent plurals.

Ordinal numbers, denoted by Arabic numerals, are written with an increment: "80s". The case ending in ordinal numbers must be one-letter or two-letter.

One-letter endings are written when the last letter of the numeral is preceded by a vowel sound. For example, 4th (fourth), 4th (fourth), 5th (fifth, fifth), 5th (fifth, fifth).

Two-letter endings are used if the last letter of the numeral is preceded by a consonant. For example, 5th, 5th, 6th.

At writing ordinal numbers much less often, Roman numerals can be used, which in this case are written without extension: “specialist of the II category”, “legal adviser of the I category”.

Compound nouns and adjectives containing numerals are written in the following way:

3 month period,

10 percent

3 day.

But all this concerns the rules of the Russian language, which you must always know and remember when using numbers in the text of a document. We are also interested in the question in which cases and in what documents the amount written in numbers requires its subsequent indication in words. This question is, one might say, historical.

For the first time in world history, the decision that in all documents the numbers should be written in cursive, and not in Arabic numerals, was adopted in 1299 in Florence. However, this ban on Arabic numerals was imposed not only because numbers are easier to correct than words, but also because Arabic numerals, then new to Europe, were considered by many residents as suspicious "Arabic magic".

Specifying the amount in words

Nowadays, the use of deciphering numbers is necessary in order to protect yourself from various problems that may arise due to the fault of an inattentive contractor (just made a mistake) or “through the fault” of the counterparty, who deliberately increased the amount of the contract by adding several numbers to the previously specified amount. As for such “creative creativity” in agreements, it should be remembered that an agreement is a double-edged sword that can hurt any of the parties. Therefore, the question is whether it is necessary to prescribe amounts in words in contracts, powers of attorney, letters related to the transfer of funds, should not be. But figure out how to do it right enter these amounts, costs. At the same time, the Civil Code of the Russian Federation does not contain any references to how these amounts must register in contracts and powers of attorney.

Let's take a look at accounting first. Everything is more or less clear here. As a rule, the bulk of the documents that employees have to fill out are primary accounting documents. The rules for working with them are regulated by the Federal Law of November 21, 1996 No. 129-FZ “On Accounting”. Primary accounting documents are divided into:

documents, the forms of which are approved by the resolutions of the State Statistics Committee of the Russian Federation;

for documents whose forms are not approved, but then they must contain the necessary minimum details specified in the law on accounting. One of the mandatory details of such documents is the measuring instruments of a business transaction in kind and in monetary terms. At the same time, the law does not contain an explicit reference to the need to decipher the monetary expression.

Many approved forms of primary accounting documents contain not only lines indicating the amounts, but also lines for deciphering them in words. In accordance with the Decree of the State Statistics Committee of the Russian Federation dated March 24, 1999 No. 20 “On approval of the procedure for using unified forms of primary accounting documentation”, the removal of individual details from unified forms is not allowed. And this means that filling in the details indicating the amounts and their decoding are mandatory. The procedure for filling in these details is not established. Although in accounting documents it practically does not cause difficulties.

Analyzing the forms of approved primary accounting documents, we can conclude that in those documents where amounts necessary prescribe , this is done in the following order (see example 1):

the amount is indicated in numerical terms,

and then this amount is repeated in words, while the kopecks are indicated by numbers.

S.Yu. Kozlova, Leading Lawyer of Optima iXchange Services (OXS):

Although the current law of November 21, 1996 No. 129-FZ “On Accounting” was adopted after the Civil Code, almost 11 years have passed since its entry into force. During this time, the Russian economy has changed radically.

Due to the introduction of relevant amendments to the legislative acts, new subjects of accounting have appeared (lawyers engaged in advocacy in the lawyer's office), the range of bodies authorized to regulate accounting has expanded. The latter circumstance, in turn, was a consequence of the weakening of the state's influence on the country's economy and the strengthening of the economic independence of business entities.

And, finally, the fact that Russia, wishing to enter as an equal participant in the world economic community, began to play an important role, is gradually moving towards accounting and financial reporting in accordance with international standards (IFRS, US GAAP). All this is reflected in the draft of the new law "On Official Accounting", which is under consideration in the State Duma.

But now, in relation to the topic we are considering, we will be interested in one significant change that affected the primary accounting documents (the so-called "primary").

The draft law imposes on the head of the organization the obligation to approve the forms of primary accounting documents. Approval is carried out upon presentation of the person responsible for accounting.
At the moment, the forms of primary accounting documents are contained in albums of unified forms of primary accounting documentation, which, in accordance with the Decree of the State Statistics Committee of the Russian Federation of May 29, 1998 No. 57a and the Ministry of Finance of June 18, 1998 No. 27n, are subject to introduction in all organizations operating on territory of our country. Therefore, now an economic entity has the right to approve only the forms of those primary accounting documents that are not in the albums of unified forms.

Apparently, the adoption of the new law involves the rejection of the use of unified forms. Each economic entity will have the right to approve the forms of primary accounting documents required for accounting in this particular economic entity. An indispensable condition for the approval and further use of such forms is the availability of mandatory details, the list of which generally corresponds to those contained in paragraph 2 of Article 9 of the current law "On Accounting".

At the same time, in nominative case only that part of the amount that is expressed in rubles is indicated in words. In order to avoid postscripts, the first word must begin with a capital letter, and in accordance with clause 2.9 of the "Regulations on Documents and Workflow of Accounting Documents" approved by the USSR Ministry of Finance dated July 29, 1983
№ 105"free lines in primary documents are subject to obligatory dash".

Not only in accounting documents, but also in contracts, powers of attorney, when drawing up, the amounts that must be repeated are indicated in words.

The procedure for decoding the amount of the contract or the amount specified in the power of attorney, as we noted above, is not regulated by the Civil Code of the Russian Federation. But the principle writing sums in words remains common for all documents: first we indicate the amount in digital form, and then in words in the nominative case with a capital letter. But there are also variations here:

Based on the practice of business turnover, we can recommend the following most common method, in which the amount is first written in full in digital terms, including rubles and kopecks, and then it is repeated, but in words (see Example 1).

But in practice there is another way. At first the amount is prescribed, which reflects rubles, in numerical terms and in words in brackets, and then kopecks are indicated only once in numerical terms:

In contracts you can meet another way to decrypt the amount, for example, "17,363.00 (Seventeen thousand three hundred and sixty-three rubles 00 kopecks)". Logically, there is a contradiction here. The second part (decryption) must fully comply with the first part (digital expression). In this example, in the first part there is no reference to the currency, then why are rubles indicated when decrypting, and, for example, not US dollars or euros? By adding the word “rubles” to the first part, we get a modification of the first of the listed acceptable options: “17,363.00 rubles. (Seventeen thousand three hundred and sixty-three rubles 00 kopecks).

Whether to use the words "rubles" and "kopecks" or use their abbreviated versions ("rubles", "kopecks"), you can decide for yourself. It is of no fundamental importance. The main thing is that there should be uniformity: having indicated the word "rubles" in full, do the same with the word "penny". Moreover, the ways of specifying kopecks (cents, euro cents) can also be different, which is especially typical for international contracts.

At the same time, I would like to draw the attention of readers to the fact that you can use any of the listed methods. breakdown of the amounts in the contract, power of attorney, letter or other document (except accounting). Which one to choose, you can determine for yourself, because. None of these methods are legally mandated. The most important thing is that the numerical expression of the amount corresponds to the fact that spelled out.

If, nevertheless, the organization wants to introduce uniformity in the order in which the amounts are written in various documents, then this can be fixed in the Office Instructions, where, for example, the order in which the date of the document is written is usually prescribed. At the same time, it should be remembered that the Office Work Instruction is a local regulatory act of the organization, and, therefore, oblige the counterparty under the contract write down the amount in the way that is enshrined in your Instructions for Record Keeping, you will not be able to. It is important here that the parties agree on any correct spelling of numbers and their interpretation.

We considered options when the amount is clearly indicated in various documents. But in practice, very often, when issuing powers of attorney for the right to sign certain contracts, a limit is indicated on the amount above which the trustee cannot conclude contracts. In this case decryption of the amount written in the genitive case, because it follows the words "no more", "no less". For example, "no more than 2,000,000 (two million) rubles".

A similar situation occurs when transcription in words other numbers, for example, the number of banking days or the volume of copyright sheets ( Suma in cuirsive to be declined):

* * *

Thus, the analysis of possible options deciphering numbers in words allows us to conclude that today this issue is not regulated by law. And if so, then we can recommend that the developers of the new GOST on office work include such a section in the new edition of GOST and try to dot the “i” so that each of us, like Alice from Wonderland, could say:

"To a million far away,
But first you need to know
What is simple and easy -
One two three four five".

In the meantime, the author of the article hopes that the considered number writing examples, based on many years of experience with documents and business practice, will help many employees to cope with this task.

The free calculator “Amount in words online” will help you quickly convert the amount written in numbers into the amount in words according to all spelling rules. The spelling of numerals is a vast topic with a lot of nuances, not everyone remembers it from school. Our simple calculator will show the amounts in words in Russian without errors. You only need to enter a numeric value in the field.

When filling out financial, accounting and tax documents, you need to write a monetary indicator in numbers and duplicate it in words - that is, write it in words. This is done in payrolls, contracts, cash orders, it is used for a bank check - money appears in almost all papers. The main purpose of prescribing amounts is the desire to avoid counterfeiting. The appearance of the numbers is easy to change, but the verbal spelling is difficult to correct.

Converting digital values into verbal ones is a tedious task. If you have to fill out a lot of documents, then the risk of error increases. To easily and free of charge convert the amount to the correct capitalization, use our calculator.

How the calculator "Amount in words online" works

Enter the numerical version of the amount in rubles in the calculator field. The program will respond to the input of a number automatically and offer a verbal formulation of the amount. It will be written below the numeric field immediately after entering the numbers. You don't need to press anything else.

Capital decoding appears exactly in the version that is adopted for financial documents: rubles are indicated in words, kopecks - in numbers, this is the rule. The amount is written with a capital letter, the value of the amount in rubles and kopecks is not separated by a comma or other punctuation mark (dot, bracket). For example: "Twenty thousand five hundred one ruble 51 kopecks."

If you need to specify the number of kopecks in the amount, write them after a comma or a period as part of the number. A space cannot be used for this purpose. For example: "20500.56" or "346.5".

If the amount is whole, without kopecks, write the number without a comma and zero indicators after it. For example: "3000000". The calculator will understand everything itself and will offer a capital version of the amount with the addition: “00 kopecks”. But specifying the amount as a decimal fraction with zero values after the decimal point is also acceptable. For example: "100.00". The third sign after the comma (point) cannot be put.

Numbers written in cursive are often used in writing. There is a group of rules of the Russian language, the knowledge of which will help you always correctly write numbers and numbers, regardless of the complexity of the words.

Denoting the numbers with words on the letter, you should be careful and not rush. The noun must agree with the noun to which it refers. To correctly write numbers in words, you need to pay special attention also when declining numerals consisting of several words.

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Types of numerals

Depending on the semantic meaning, numerals are divided into:

Quantitative - denote the amount or quantity. Answer the question "how much?" (one, two, fifteen, thirty-five, etc.);
Collective - denote the quantity as a set (two, three, six, both, etc.);
Ordinal - numerals with a countable ordinal value. Answering the question "Which?" (fifth, sixteenth, seventy-second, etc.).

Declension of numerals

Following the pattern of nouns of the third declension, such numerals change as:

five, six, seven, eight, nine;
Numerals ending in -dtsat (eleven, twelve, thirty);
Numerals ending in -ten (fifty, sixty).

Numerals ending in -hundred are declined in a special way:

Nominative case - three hundred, five hundred;
Genitive - three hundred, five hundred;
Dative - three hundred, five hundred;
Accusative - three hundred, five hundred;
Creative - three hundred, five hundred;
Prepositional - about three hundred, about five hundred.

The numerals "forty", "ninety" and "one hundred" are inclined in a special way:

In the nominative and accusative cases - forty, ninety, one hundred;
In other cases - forty, ninety, one hundred.

The numeral "one and a half" has two forms of the nominative case: one and a half (masculine and neuter) and one and a half (feminine). The form of all indirect cases (except accusative) is one and a half.

Following the pattern of adjectives, they decline:

Numerals "two", "three", "four";
Collective numerals;
The words "both", "both", "how many", "as many", "something", "so many".

Declension of complex numbers

Before inflecting a numeral consisting of several words, it is necessary to determine what kind it belongs to:

For compound cardinal numbers, every word is declined (one thousand two hundred and fifty-two textbooks are missing);
For compound ordinal numbers, only the last word is declined (to the year two thousand and fourteen).

Writing rules

Knowing the following rules will help determine the situation in which you need to write the numeral in words:

The number in the form of numbers must be written before the signs of the number, percentage, paragraph, degree;
If there is a noun associated with a number, then the latter is written in cursive (for example: the package includes three programs);
The number 0 (zero) in the text is written in words. How the zero sign is written next to other numbers.

Rules for writing numerals

There are a few more important points to pay attention to when writing numbers:

In a complex numeral, billions, millions, thousands, hundreds, tens, units are written separately;
There are no punctuation marks between words in one numeral;
You need to write a soft sign in the numeral only once. If there is a soft sign at the end of a word, it is not written in the middle, and vice versa (fifty, seventeen).

Hello dear readers! In this material, we will tell you about the cases in which it is worth writing numbers in letters and how to do it correctly so as not to seem illiterate. It is useful to explain these rules to an older child. It is best to learn the rules of spelling from childhood, so as not to get into trouble later. And if you still do not know them, study carefully.

When do you need to write numbers in words?

At school, Russian language teachers strongly demand that we know the numerals and the rules for writing them. For children, this topic is a real torment, because each number has its own characteristics in writing.

However, growing up, we are convinced that in some situations knowledge of grammar is not in vain. We don't have to put ourselves and others in an uncomfortable position by asking how a number is spelled. Of course, situations like this are rare in real life. But if you work with money, accounting documents, computational skills alone are not enough.

When may an average person need knowledge of the spelling of numerical designations in Russian?

when filling out receipts and other financial documents;
during the signing of contracts;
upon receipt of the amount of money at the post office, at the bank, etc.

If you have ever felt embarrassed by your own illiteracy in situations like this, then read on.

In addition to documentation, there are a number of rules that determine in which cases it is better to write the numbers in words. It is not always necessary to completely replace the numerical designations, but sometimes letters are indispensable:

in large ones, it is better to write the first part in numbers, and the second in letters (for example, 200 million);
if the number is at the beginning of the text, it is categorically impossible to write it down in numbers (with the exception of headings);
it is required to indicate the percentage in the text (in this case, we write like this: “thirty percent”);
Numbers up to 10 are best written in letters.

If your work is related to texts in which numerical designations are often found, these rules should be remembered.

Writing down a complex designation in words is not as easy as it might seem at first glance. You should familiarize yourself with the rules for writing individual numerals, which we will talk about further.

Basic spelling rules

Spelling skills can be practiced online. But in order to work with such simulators, you need to familiarize yourself with the theory:

Compound numerals should be written together. These include, for example, "thirty", "forty", "fourteen", i.e. numbers from 10 to 20 and round tens.
Fractional and compound designations are written in several words, for example: “forty-two”, “two-thirds”.
Words that end in -thousandth, -millionth, -billionth should be written together, i.e. in one word.
As for zero, the indicated form of writing is used mainly for case variations. "Zero" is used in the nominative case and in less formal situations.

Particular attention should be paid to writing a soft sign in numbers in words. This is where the most misunderstandings occur:

In the middle of words from 15 to 19, a soft sign is not written, but is present at the end (“sixteen”, “nineteen”).
A soft sign is present in the middle of numbers from 50 to 80, from 500 to 900.
At the end of words from 5 to 20 and "thirty" a soft sign is written.
There is a letter in the instrumental case of the words "four", "eight".

Special attention should be paid to the fact that "million" and "billion" are written with two "l", "eleven" - with two "n". Here, perhaps, are all the rules that should be remembered when writing numbers in letters.

Amount in figures and words

And if you ever need to show off your literacy, you can easily do it.

So, what should you pay attention to when writing in words?

for continuous or separate writing;
on the correct use of a soft sign;
the presence of double consonants in the word.

If you have comments on the topic, dear readers, you can leave your comments. Your opinion is valuable for us.

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In some accounting documents of primary reporting, as well as in contracts, powers of attorney and other documents, you can find numbers written in words. Deciphering numbers is used to avoid various kinds of problems that can arise both through carelessness and malicious intent, when a number is deliberately distorted by adding digits to the amount indicated earlier.

The bulk of the documents that employees of enterprises have to fill out are the so-called "Primary", or primary accounting documents (cash receipts, receipts, waybills, invoices for payment, and so on). The rules for working with primary reporting documents are regulated by the Federal Law "On Accounting". Many documents, the forms of which are approved by the resolutions of the State Statistics Committee of the Russian Federation, contain not only lines indicating the amounts, but also lines for decoding these amounts in words, while decoding is mandatory.

Along with accounting, there are other documents where there is a breakdown of the amount, for example, an agreement, a power of attorney or a letter.

6. Numbers and signs

The procedure for decoding the amount specified in the contract or power of attorney is not regulated by the Civil Code of the Russian Federation, but the rules for writing amounts in words are common to all documents.

Rules for writing transcripts of amounts in words

1. First, the amount is indicated in figures, then this amount is repeated in words;

2. the amount is indicated in words in the nominative case, while only the part of the amount expressed in rubles is indicated in words, kopecks are indicated by numbers;

3. in order to avoid postscripts, the first word in spelling must begin with a capital letter.

Add-in to convert number to text in words in Word

Writing transcripts of amounts in words in accounting documents, as a rule, is already automated in accounting systems for financial and economic activities such as 1-C, SAP ERP, etc. If some documents are formed in the Microsoft Word text editor, while the documents provide fields for deciphering amounts in words, then you can automate their writing using an add-in for Word (a similar add-in for Excel).

The add-in allows you to quickly convert a number to text in words, for this you need to select a number, run a macro, if necessary, select the desired currency (roubles are set by default) and click OK. The amount in words is formed in accordance with the above rules and is inserted immediately after the selected numeric value.

Several currencies are available for the user's choice: rubles, dollars, euros, hryvnias, and a "no currency" mode is provided, when the words "whole" and "hundredths" are written instead of the name of the currencies (for example, Forty-four thousand six hundred twenty-point, 00 hundredths). When you select the "All in words" option, the part of the number that is after the decimal point is also written in words.

In addition, in some cases, when generating documents in Word, you can automate their completion.

add-on video

download add-on to convert number to text in words

Other related materials:

Deciphering the amount in words. Forms of writing numbers in the text of documents.

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Types of numerals

Depending on the semantic meaning, numerals are divided into:

Quantitative - denote the amount or quantity. Answer the question "how much?" (one, two, fifteen, thirty-five, etc.);
Collective - denote the quantity as a set (two, three, six, both, etc.);
Ordinal - numerals with a countable ordinal value. Answering the question "Which?" (fifth, sixteenth, seventy-second, etc.).

Declension of numerals

Following the pattern of nouns of the third declension, such numerals change as:

five, six, seven, eight, nine;
Numerals ending in -dtsat (eleven, twelve, thirty);
Numerals ending in -ten (fifty, sixty).

Numerals ending in -hundred are declined in a special way:

Nominative case - three hundred, five hundred;
Genitive - three hundred, five hundred;
Dative - three hundred, five hundred;
Accusative - three hundred, five hundred;
Creative - three hundred, five hundred;
Prepositional - about three hundred, about five hundred.

The numerals "forty", "ninety" and "one hundred" are inclined in a special way:

In the nominative and accusative cases - forty, ninety, one hundred;
In other cases - forty, ninety, one hundred.

Following the pattern of adjectives, they decline:

Numerals "two", "three", "four";
Collective numerals;
The words "both", "both", "how many", "as many", "something", "so many".

Declension of complex numbers

Before inflecting a numeral consisting of several words, it is necessary to determine what kind it belongs to:

For compound cardinal numbers, every word is declined (one thousand two hundred and fifty-two textbooks are missing);
For compound ordinal numbers, only the last word is declined (to the year two thousand and fourteen).

Writing rules

Knowing the following rules will help determine the situation in which you need to write the numeral in words:

The number in the form of numbers must be written before the signs of the number, percentage, paragraph, degree;
If there is a noun associated with a number, then the latter is written in cursive (for example: the package includes three programs);
The number 0 (zero) in the text is written in words. How the zero sign is written next to other numbers.

Rules for writing numerals

There are a few more important points to pay attention to when writing numbers:

In a complex numeral, billions, millions, thousands, hundreds, tens, units are written separately;
There are no punctuation marks between words in one numeral;
You need to write a soft sign in the numeral only once. If there is a soft sign at the end of a word, it is not written in the middle, and vice versa (fifty, seventeen).

To convert numbers written in Arabic numerals to Roman, special functions are used. At the same time, in the nominative case, only that part of the amount that is expressed in rubles is indicated in words. The material is provided in the amount of at least 2.5 (two and a half) author's sheets. This method of typing Roman numerals in Word is convenient in cases where there is no certainty in the correct spelling of the number and there is no Internet at hand.

To correctly write large numbers in Roman numerals, you must first write down the number of thousands, then hundreds, then tens, and finally units. In this case, some of the numbers (I, X, C, M) can be repeated, but not more than three times in a row; thus, they can be used to write any integer up to 3999 (MMMCMXCIX).

It was only in the 19th century that the number “four” was written universally as “IV”, before that the record “IIII” was most often used. The smaller number can be written to the left of the larger one, then it should be subtracted from the larger one.

With the transition to computer processing of information, date formats based on Roman numerals have practically fallen out of use. In Western countries, the number of the year is often written in Roman numerals, for example, on the gables of buildings and in the credits of film and video products.

For example, MCMLXXXVIII can be represented in the form ⅯⅭⅯⅬⅩⅩⅩⅧ. Technical Note: Due to technical limitations, some browsers may not display the special characters used in this article. In digital form, predominantly quantitative numbers are written, for example, “We confirm that our company received 3 tons of cement.”

Amount in words online

We are also interested in the question in which cases and in what documents the amount written in numbers requires its subsequent indication in words. For the first time in world history, the decision that in all documents the numbers should be written in cursive, and not in Arabic numerals, was adopted in 1299 in Florence.

Therefore, the question of whether it is necessary to write down the amounts in words in contracts, powers of attorney, letters related to the transfer of funds should not be raised. But it’s worth figuring out how to correctly prescribe these amounts. At the same time, the Civil Code of the Russian Federation does not contain any references to how these amounts should be prescribed in contracts, powers of attorney. One of the obligatory details of such documents is the measuring instruments of economic transactions in kind and monetary terms.

Forms of writing numbers in the text of documents

Many approved forms of primary accounting documents contain not only lines indicating the amounts, but also lines for deciphering them in words. And this means that filling in the details indicating the amounts and their decoding are mandatory. Not only in accounting documents, but also in contracts, powers of attorney, when drawing up, the amounts that must be repeated in words are indicated. In contracts, you can find another way to decipher the amount, for example, "17,363.00 (Seventeen thousand three hundred sixty-three rubles 00 kopecks)".

Arabic and Roman numerals

Which one to choose, you can determine for yourself, because. None of these methods are legally mandated. It is important here that the parties agree on any correct spelling of numbers and their interpretation. In this case, the decoding of the amount is written in the genitive case, because it follows the words "no more", "no less".

In other languages, the scope of Roman numerals may differ. In the text of some documents, there are numbers that are first given in numbers, and then in brackets - in a letter way. But all this concerns the rules of the Russian language, which you must always know and remember when using numbers in the text of a document.

You answered that a comma is needed. This isolation is understandable if we consider the phrase "what is needed for communication" as a subordinate clause introduced by the allied word "what".
But there is also a variant of the context that the phrase "for a comfortable amount per month" is a definition (in extreme cases, a circumstance) for the word "communication".
Is the second comma needed in this case?
Thank you!

In combination with communication for a comfortable amount per month, a comma is not needed. But in the said phrase, apparently, we are talking about a different combination: everything ... for a comfortable amount (in this case, the subordinate part that is needed for communication is isolated).

How to correctly write the amount in the text of the contract, if in the sentence the amount in numerical terms is in the genitive case. And in words, the amount should be written in the nominative case?