Russia · Grade 1 · Practice Sheet 9

1. 1.

   Add 48 and 34.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is 9 + 1?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Fill in the missing number: 8 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   What is 17 − 3?

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   Fill in the missing number: 14 + ___ = 23.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   You have ₽7 and ₽5. 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: 15 + ___ = 24.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   Add 10 and 29.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   What is 17 − 9?

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    What is double 15?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    Add 33 and 56.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

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

    Formula:Adding Money

    $\text{total} = a + b$

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13. 13.

    What is 2 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    What is 12 − 2?

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    Add 55 and 40.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is double 8?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    You have ₽6 and ₽2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    Add 76 and 50.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    Fill in the missing number: 4 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    Add 10 and 30.

    Formula:Addition

    $\text{sum} = a + b$

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