Mathematics is based on numbers; they are important for everything we do in daily life. By counting what we see around us and using numbers for purposes such as time-keeping or financial activities, being able to understand numerals is an important skill. You will learn how to identify and write numerals between one and 100, to begin with, in this article.

Understanding Numerals 1-10

When learning how to read and write numbers, the most fundamental numerals are from 1 to 10. These numerals serve as the foundation for creating larger composite numbers. Here is a refresher:

1. One (1)
2. Two (2)
3. Three (3)
4. Four (4)
5. Five (5)
6. Six (6)
7. Seven (7)
8. Eight (8)
9. Nine (9)
10. Ten (10)

Identifying Numbers 11-19

The numbers from 11 to 19 follow a unique pattern. While they may seem irregular at first, they are straightforward once you understand their structure. Here’s the list:

11. Eleven (11)
12. Twelve (12)
13. Thirteen (13)
14. Fourteen (14)
15. Fifteen (15)
16. Sixteen (16)
17. Seventeen (17)
18. Eighteen (18)
19. Nineteen (19)

Notice that these numbers end with “-teen,” which signifies their place in the teens.

Counting by Tens: 20-100

Once you’ve mastered the numbers up to 19, counting by tens makes it easy to identify larger numbers. Here’s how it works:

20. Twenty (20)
21. Thirty (30)
22. Forty (40)
23. Fifty (50)
24. Sixty (60)
25. Seventy (70)
26. Eighty (80)
27. Ninety (90)
28. One Hundred (100)

To form numbers between these multiples of ten, simply combine the tens place with the ones place. For example, Twenty-one (21), Thirty-two (32Beyond 100: When creating numbers that are located between these multiples of ten, just combine the tens place with the ones place. For example, Twenty-One (21), Thirty-Two (32). To continue learning to create larger numbers after you have learned how to create numbers up to 100 (or larger), it also helps to understand how to create larger numbers, as well as how to count in multiples of ten. 

After learning to create numbers that are less than 100. Learning how to create larger numbers gets a lot easier. Below is an example of how to create larger numbers:

Hundreds – Numbers such as “one hundred” (100), “two hundred” (200), “three hundred” (300) can be created by adding the word “hundred” after the base number.

Thousands – Numbers such as “one thousand” (1,000) and “two thousand” (2,000) are created by following the same pattern.

Millions – Numbers such as “one million” (1,000,000) and larger numbers are also created by following the same pattern.

For numbers in between, combine the words. For example:

Two Thousand Four Hundred Fifty-six (2,456) and Forty-five (45).

One Hundred Twenty-three (123)

For the numbers from 20 to 99 we can observe the following pattern:

To the numbers:

20	30	40	50	60	70	80	90
twenty	thirty	forty	fifty	sixty	seventy	eighty	ninety

add, instead of 0, the numbers:

1	2	3	4	5	6	7	8	9
-one	-two	-three	-four	-five	-six	-seven	-eight	-nine

Examples:

21: 20-twenty and 1-one = twenty-one

45: 40-forty and 5-five = forty-five

Can you think about some examples of numbers?