Worksheet set 1

Numbers 11–19

Use a ten-frame or bundle of 10 sticks plus extras.

Warm-up

1. Draw 10 dots plus 2 more. How many in all?

Written practice

1. 12 = 10 + ___ 2. Write the numeral: 12 → ___ 3. Write numerals: 11, 12, 13 4. Which is greater: 12 or 9? ___ 5. 10 + 3 = ___

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More practice

1. 12 = 10 + ___ 2. Write the numeral: 12 → ___ 3. Write numerals: 11, 12, 13 4. Which is greater: 12 or 9? ___ 5. 10 + 3 = ___

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Patterns and rules

1. Teen numbers are one ten and some ones. 2. Each teen number is one more than the number before.

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