Practice Problems — Set 1

K.CC.A.1 · Count to 100 by ones and by tens

Print and write your answers in the blanks. Use the diagrams to explain your thinking.

Count together

1. Count from 1 to 11 aloud with a parent. 2. Draw 3 objects. Count them as you write the numeral. 3. Count from 10 to 22 by tens aloud.

_See printable PDF for diagram._

Written practice

1. Write the next numbers: 1, 2, ___, ___, ___ 2. Fill in: 10, 20, ___, 40, ___, 60 3. Write the numeral: five → ___ 4. Complete by ones: 3, 4, ___, 6 5. What comes after 11? ___ 6. What comes before 12? ___ 7. Write the next numbers: 8, 9, ___, ___, ___ 8. Write the next numbers: 9, 10, ___, ___, ___ 9. Write the next numbers: 10, 11, ___, ___, ___ 10. Fill in by tens: 20, 30, ___, 40, ___

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More written practice

1. Fill in by tens: 25, 35, ___, 55 2. Write every tenth number from 20 to 60.

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Patterns and rules

1. When we count 1, 2, 3, 4… we add one each time. Write the next number after 6: ___ 2. Counting by tens (10, 20, 30): what do we add each time? ___ 3. Circle the rule: (A) add 1 each time (B) add 10 each time — for 5, 6, 7, 8 4. Explain in one sentence: How is counting by tens different from counting by ones?

_See printable PDF for diagram._

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Parent tip: Touch each object once while saying one number. Writing numerals builds fluency.