Cambodia · Grade 1 · Practice Sheet 26

1. 1.

   What is 8 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   Continue the pattern by counting in 3s: 3, 6, ___

   Formula:Skip Counting

   $\text{next} = \text{term} + \text{step}$

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3. 3.

   What is 14 − 7?

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   What is double 11?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   Fill in the missing number: 4 + ___ = 12.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   You have ៛ 6 and ៛ 7. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   Fill in the missing number: 13 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is double 8?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   Add 41 and 22.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    Continue the pattern by counting in 10s: 30, 40, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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11. 11.

    Add 38 and 51.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    What is double 20?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    Fill in the missing number: 4 + ___ = 9.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    You have ៛ 4 and ៛ 8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    Continue the pattern by counting in 3s: 12, 15, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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17. 17.

    You have ៛ 9 and ៛ 8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    Continue the pattern by counting in 3s: 9, 12, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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19. 19.

    Add 46 and 21.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    You have ៛ 1 and ៛ 5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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