This is how we write the numbers that are ones.
1 one
2 two
3 three
4 four
5 five
6 six
7 seven
8 eight
9 nine
10 ten
This is how we write tens numbers:
20 twenty
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90 ninety
100 one hundred
Examples
This is how we combine them:
53 fifty-three
91 ninety-one
78 seventy-eight
87 eighty-seven
Note the use of the hyphen to join them together.
Let's have a go at some questions now.
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Question
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Teacher explanation