Ethiopia · Grade 1 · Practice Sheet 42

1. 1.

   What is double 23?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

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

   Formula:Adding Money

   $\text{total} = a + b$

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3. 3.

   Add 22 and 60.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is double 22?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   What is 5 − 2?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 12 + ___ = 27.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 17?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Fill in the missing number: 15 + ___ = 25.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   You have Br 4 and Br 5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    Fill in the missing number: 4 + ___ = 16.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    Add 48 and 31.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Fill in the missing number: 6 + ___ = 11.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    What is 12 − 7?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Fill in the missing number: 9 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    What is double 9?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    You have Br 7 and Br 1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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17. 17.

    Fill in the missing number: 13 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    What is 8 + 2?

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

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

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    What is 10 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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