Brazil · Ano 1 · Practice Sheet 2

1. 1.

   Fill in the missing number: 6 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is 7 + 9?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 12 and 31.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   You have R$ 6 and R$ 7. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   Add 35 and 43.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   What is 11 − 6?

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Fill in the missing number: 12 + ___ = 14.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is double 3?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   You have R$ 4 and R$ 1. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    Add 89 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

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

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    What is double 22?

    Formula:Doubling

    $d = 2 \times n$

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14. 14.

    Add 80 and 51.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    Fill in the missing number: 15 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    You have R$ 2 and R$ 9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    Fill in the missing number: 10 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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19. 19.

    What is 13 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    What is double 7?

    Formula:Doubling

    $d = 2 \times n$

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