Italy · Classe 1 · Practice Sheet 3

1. 1.

   Add 73 and 26.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is 8 + 5?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 31 and 25.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   Add 58 and 42.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   Fill in the missing number: 6 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is 8 + 7?

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Fill in the missing number: 9 + ___ = 18.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   What is 9 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    Fill in the missing number: 9 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

    What is 1 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Add 86 and 13.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    Fill in the missing number: 3 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    Fill in the missing number: 8 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is 12 − 5?

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    You have €4 and €6. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    What is 6 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Fill in the missing number: 7 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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