Peru · Grado 1 · Practice Sheet 39

1. 1.

   What is double 4?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   You have S/ 2 and S/ 5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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3. 3.

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

   Formula:Skip Counting

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

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4. 4.

   What is 3 + 1?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

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

   Formula:Adding Money

   $\text{total} = a + b$

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6. 6.

   What is double 18?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   What is 7 + 7?

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Add 77 and 35.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   What is 18 − 10?

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    What is 1 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    Add 76 and 17.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

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

    Formula:Adding Money

    $\text{total} = a + b$

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13. 13.

    Fill in the missing number: 7 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    What is 16 − 10?

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    Fill in the missing number: 3 + ___ = 14.

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    Add 38 and 47.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    What is 2 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    What is 15 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    Add 44 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    What is 4 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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