Practice Problems — Set 8
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 18 aloud with a parent. 2. Draw 10 objects. Count them as you write the numeral. 3. Count from 10 to 36 by tens aloud.
_See printable PDF for diagram._
Written practice
1. Write the next numbers: 8, 9, ___, ___, ___ 2. Fill in: 10, 20, ___, 40, ___, 60 3. Write the numeral: three → ___ 4. Complete by ones: 10, 11, ___, 13 5. What comes after 18? ___ 6. What comes before 19? ___ 7. Write the next numbers: 29, 30, ___, ___, ___ 8. Write the next numbers: 30, 31, ___, ___, ___ 9. Write the next numbers: 31, 32, ___, ___, ___ 10. Fill in by tens: 40, 50, ___, 60, ___
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More written practice
1. Fill in by tens: 45, 55, ___, 75 2. Write every tenth number from 40 to 80. 3. Start at 29 and write the next six numbers. 4. Write numerals from 29 to 37 in order.
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Patterns and rules
1. What rule: 8, 9, 10, 11 → add ___ each time. 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.