Peru · Grado 1 · Practice Sheet 50

1. 1.

   Fill in the missing number: 6 + ___ = 8.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is double 17?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   Fill in the missing number: 8 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   What is 2 + 5?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   Continue the pattern by counting in 10s: 0, 10, ___

   Formula:Skip Counting

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

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6. 6.

   Fill in the missing number: 12 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 12?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

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

   Formula:Skip Counting

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

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9. 9.

   Fill in the missing number: 2 + ___ = 12.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    You have S/ 9 and S/ 6. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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12. 12.

    Add 84 and 38.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is 14 − 12?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Add 41 and 16.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    You have S/ 7 and S/ 9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    What is double 10?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

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

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    Add 67 and 22.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    What is 1 + 4?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    What is 5 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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