Greece · Grade 1 · Practice Sheet 29

1. 1.

   Fill in the missing number: 7 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is double 15?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   You have €8 and €4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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4. 4.

   Add 34 and 49.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   What is 5 − 1?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 13 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

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

   Formula:Adding Money

   $\text{total} = a + b$

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8. 8.

   Fill in the missing number: 11 + ___ = 25.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   Continue the pattern by counting in 10s: 40, 50, ___

   Formula:Skip Counting

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

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10. 10.

    Fill in the missing number: 15 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is 6 + 4?

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Add 59 and 21.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is 10 − 8?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is 4 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    Add 49 and 12.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is 6 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    Fill in the missing number: 14 + ___ = 24.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    What is double 6?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    You have €7 and €2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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20. 20.

    What is 4 + 3?

    Formula:Addition

    $\text{sum} = a + b$

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