Numbers (1-100)

Key Vocabulary

Vocabulary Explanation

Numbers are words for counting. Basic numbers: 1 one, 2 two, 3 three, 4 four, 5 five, 6 six, 7 seven, 8 eight, 9 nine, 10 ten. After ten: 11 eleven, 12 twelve, 13 thirteen… 19 nineteen. The tens: 20 twenty, 30 thirty, 40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 one hundred. For numbers in between, join a ten + a small number with a hyphen: 21 = twenty-one, 45 = forty-five.

Examples:

1. 5 = five
2. 12 = twelve
3. 20 = twenty
4. 33 = thirty-three
5. 100 = one hundred

Remember: teens (13-19) end in «-teen»; tens (20-90) end in «-ty»; join tens + units with a hyphen (21 = twenty-one).