14 Correct Writing of Numbers and Numbers According to EYD in Indonesian

After discussing on the previous occasion about use of punctuation, use of capital letters and use italics correct according to Enhanced Spelling in languageIndonesia. This article will discuss the correct writing of numbers and numbers according to EYD and the differences between the two.

Definition of Numbers and Numbers

In the world of mathematics there are things that we always find, namely numbers and numbers. In everyday usage, numbers and numbers are considered the same thing. But in reality, these two things are two different entities, which have different meanings, functions and uses.

Number is a sign or symbol to represent a number. While the number is a mathematical element that is used to measure and enumerate.

Types of Numbers

1. Zero
   Zero is a number that consists of only zero, without any other numbers.
   Example: {0}
2. Real Numbers
   Natural numbers consist of positive numbers starting from the number 1 (one) and so on.
   Example: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, …, …, …, ….}
3. Integers
   Integers consist of zero, negative and positive integers.
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   Example: {…., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ….}
4. Primes
   Prime numbers consist of numbers that cannot be divided by any number other than the number itself and the number 1 (one).
   Example: {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 39, 43, ….}
5. Whole Numbers
   Whole numbers consist of zero and positive numbers.
   Example: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ….}
6. Fractions
   Fractional numbers consist of numbers expressed or written in the form a/b, where a and b are integers, while b sedangkan0. The number a is called the numerator and the number b is called the denominator.
   Example: {½,, ,, ,, ….}
7. Rational number
   Rational numbers consist of whole numbers expressed in the form of fractions a/b, and b≠0.
   Example: {½,, ….}
8. Irrational Numbers
   Irrational numbers consist of numbers that are not rational numbers or numbers that cannot be expressed as fractions.
   Example: {√2, 3, 5, 7, ….}
9. Real Numbers
   Real numbers consist of a combination of rational and irrational numbers.
   Example: {½,, 2, 3, 5, 7, ….}
10. Positive Numbers
    Positive numbers consist of from a positive number other than zero.
    Example: {2, 3, 4, 5, 6, 7, 8, 9,, , ….}
11. Negative Number
    Negative numbers consist of numbers other than zero that are negative.
    Example: {-5, -4, -3, -2, -1, -8, -12, -16, ….}
12. Odd numbers
    Odd numbers consist of integers that are not divisible by 2, or can be expressed by the formula 2n-1.
    Example: {-9, -7, -5, -3, -1, 1, 3, 5, 7, 9, ….}
13. Even number
    Even numbers consist of integers that are divisible by the number 2.
    Example: {-8, -6, -4, -2, 2, 4, 6, 8, 10, 12, ….}
14. Composite Numbers
    Composite numbers consist of numbers that are not included in prime numbers and natural numbers whose value is greater than 1 (one).
    Example: {2, 4, 5, 6, 7, 8, 9, 10, 11, 12, ….}
15. Real Number
    Real numbers consist of numbers that can be expressed in decimal form (commas).
    Example: {½,, 3, 5, 7, log 10, ….}
16. Imaginary Numbers
    Imaginary numbers consist of numbers written with an imaginary unit (i) which is the symbol for the new number.
    Example: {i, 2i, 3i, 4i, 5i, 6i, 7i, 8i, 9i, ….}
17. Complex Numbers
    Complex numbers consist of numbers that can be expressed by the formula (a+bi), where a is a real number and bi is an imaginary number.
    Example: {2-3i, 3-4i, 4-5i, 5-6i, ….}
18. Roman Numbers
    Roman numerals are a number system originating from the ancient Romans, whose writing uses Latin letters to represent numbers.
    Example: {I=1, II=2, III=3, IV=4, V=5, VI=6, VII=7, VIII=8, IX=9, X=10, …}
19. Square Number
    Square numbers consist of numbers which are the result of multiplying a number with the number itself 2 times, where this square number is symbolized by the number 2.
    Example: {2², 3², 4², 5², 6², 7², 8², 9², 10², ….}

Writing Numbers and Numbers

1. To express a number or number symbol, it can be written with Roman or Arabic numerals.

Example:

• Arabic numerals: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, …
• Roman Numerals: V=5000, M=1000 D=500, C=100, L=50, X=10, VIII=8, V=5, IV=4, III=3

2. To express the nominal value of a money.

Example:

• He sold his laptop for Rp. 2,000,000.00
• Ani withdrew her $100 deposit

3. To state the amount or quantity, size (length, weight, content, area, volume).

Example:

• In a month we usually spend 50 kg of rice.
• The city park was built on an vacant land area of ​​800 square meters.
• The invited guests numbered around 1,500 people

4. To express the unit of time.

Example:

• The Bandung-Jakarta train will arrive at 12.00
• The flight from Jakarta to Bali takes approximately 2 hours and 10 minutes
• He will leave for England, January 12 12

5. To symbolize the room number, house/hotel/apartment, street at the address.

Example:

• We stayed at the Sangrila hotel room number 132.
• One of the city's proud museums is located on Jalan Diponegoro No. 10.

6. To number the parts of a book / essay, scripture, magazine, newspaper.

Example:

• News about the general election is on page 8 letter news today.
• We were asked by the teacher to do all the exercises on pages 102-104.

7. To write number symbols that use letters separately between parts and prefixes (such as per in fractions), then the writing is combined with other parts that are after/di behind him.

Example:

• The victims of the earthquake that occurred yesterday, 1% of them are children.
• From the results of our survey, of the population choose to live in rural areas

8. To represent the numeral symbol of a Roman numeral, it can be written using a hyphen (to-) is then followed by a number or written in sequence if the number is expressed by said.

Example:

• The millennium begins in the 20th century AD.
• He is a badminton player ranked 7th in the world.

9. To express the symbol of a number added with the suffix -an, the writing uses a hyphen after the number (such as: …-an) or can be combined if the number is expressed in words.

Example:

• This sports arena can accommodate around 1300 spectators.
• As many as 500 people have registered as members of this association.

10. To express the symbol for the number at the beginning of sentence, written in letters and if needed the sentence structure can be changed.

Example:

• Two hundred pairs of shoes were donated in yesterday's social service event.
• Two participants were declared disqualified because they were proven to have used illegal drugs.

11. To express the number of a large whole number for easy spelling and reading.

Example:

• The total donations collected for the earthquake victims amounted to 650 million rupiah.
• The construction of this flyover will cost around 120 billion rupiah.

12. For numbers consisting of numbers and letters, both are not written at the same time except in the writing of an official document (such as a deed and receipt).

Example:

• Last month the salesman sold two cars for three billion rupiah
• The insurance worth 100 million rupiah has been disbursed this afternoon.

13. For numbers that represent an ordinal number or number, it is written in series with the digits.

Example:

• The down payment for the apartment rental was written at Rp. 25,000,000.00 (twenty five million rupiah)
• because he was negligent, he was fined Rp. 500,000,000.00 (five hundred million rupiah)

14. To express a sequence, it is written in series with numbers. If using Roman numerals then the number is written alone (stand alone). If using Arabic numerals, it is written starting with word connect to-.

Example:

• Arabic numerals: 21st century
• Roman numerals: XXI century

That's the discussion about writing the correct numbers and numbers according to EYD in Indonesian. May be useful.