Cambodia · Grade 1 · Practice Sheet 46

1. 1.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   Fill in the missing number: 14 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is 10 − 7?

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   You have ៛ 3 and ៛ 4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   Add 70 and 41.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   Fill in the missing number: 6 + ___ = 13.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 20?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Fill in the missing number: 3 + ___ = 18.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   You have ៛ 2 and ៛ 4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    What is 6 − 1?

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is 7 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    What is double 10?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    You have ៛ 1 and ៛ 2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    What is 1 + 5?

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Fill in the missing number: 7 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is 5 − 2?

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    What is double 8?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    Fill in the missing number: 11 + ___ = 24.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

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

    Formula:Adding Money

    $\text{total} = a + b$

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