Writing Numbers Worksheet 1-100

Here are the numbers from one to twenty written in words.

reading the Numbers 1 to 20 guide

Before teaching reading numbers to 100 in words, it is first important to be familiar with the numbers to twenty.

We will continue by looking at the pattern in reading the numbers from 20 to 100.

To read numbers to 100 in words, first read the multiple of ten given by the tens digit and then read the units digit immediately afterwards. There should always be a hyphen '-' separating the multiple of ten and the number given by the units digit. The numbers 'one' to 'nine' repeat, written after each new multiple of ten.

Here is a list of the multiples of ten written in words:

20 – Twenty
30 – Thirty
40 – Forty
50 – Fifty
60 – Sixty
70 – Seventy
80 – Eighty
90 – Ninety

We will first learn how to read numbers in the twenties in words.

20 is the number twenty. All 2-digit whole numbers that start with a '2' digit are in the twenties.

Reading the numbers in the twenties

21 starts with a '2' and so it is in the twenties. Therefore we first write 'twenty'.

21 ends in a '1' in the units column and so we simply write a 'one' after the 'twenty'.

21 is written in words as 'twenty-one'. We put a hyphen between twenty and one.

22 is written as 'twenty-two'.

23 is written as 'twenty-three'

24 is written as 'twenty-four'.

25 is written as 'twenty-five'

26 is written as 'twenty-six'.

27 is written as 'twenty-seven'

28 is written as 'twenty-eight'.

29 is written as 'twenty-nine'

We can see that as long as we know the numbers from 1 to 9, we simply put a 'twenty' in front of them to write numbers in the twenties.

30 comes after 29.

30 is read as 'thirty' and is the first 2-digit number that starts with a 3.

Here we will read and write the numbers in the thirties. The numbers in the thirties are the 2-digit whole numbers that start with a 3.

Reading and writing numbers in the thirties in words

31 starts with a '3' and so it is in the thirties. Therefore we first write 'thirty'.

31 ends in a '1' in the units column and so we simply write a 'one' after the 'thirty'.

31 is written in words as 'thirty-one'. We put a hyphen between thirty and one.

32 is written as 'thirty-two'.

33 is written as 'thirty-three'

34 is written as 'thirty-four'.

35 is written as 'thirty-five'

36 is written as 'thirty-six'.

37 is written as 'thirty-seven'

38 is written as 'thirty-eight'.

39 is written as 'thirty-nine'

Again, we simply repeat the numbers 1 to 9 but with the word 'thirty' in front of them. The thirty and the units number are separated by a hyphen.

40 comes after 39.

40 is read as 'forty'. It is a common mistake to spell forty as fourty, with a 'u', like the number four. This is incorrect and forty is spelled without a 'u'.

All 2-digit whole numbers that start with a '4' are in the forties.

They start with the word 'forty', are followed by a hyphen and then the units number.

Reading and writing numbers in the forties in words