Brazil · Ano 3 · Practice Sheet 7

1. 1.

   What is half of 26?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   What is double 7?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

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

   Formula:Adding Money

   $\text{total} = a + b$

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4. 4.

   How many tens are there in the number 70?

   Formula:Place Value

   $\text{value} = \text{tens} \times 10 + \text{ones}$

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5. 5.

   What is half of 8?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   Fill in the missing number: 9 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Add 20 + 15 + 3.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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8. 8.

   You have R$ 8 and R$ 3. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

   What is half of 38?

   Formula:Halving

   $h = n \div 2$

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10. 10.

    There are 6 bags with 8 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition

    $\text{total} = \text{groups} \times \text{size}$

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11. 11.

    36 sweets are shared equally among 6 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

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12. 12.

    Fill in the missing number: 12 + ___ = 17.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Subtract 42 from 48.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    How many tens are there in the number 20?

    Formula:Place Value

    $\text{value} = \text{tens} \times 10 + \text{ones}$

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15. 15.

    Add 8 + 13 + 20.

    Formula:Addition of Three Numbers

    $\text{sum} = a + b + c$

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16. 16.

    There are 4 bags with 4 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition

    $\text{total} = \text{groups} \times \text{size}$

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17. 17.

    Fill in the missing number: 5 + ___ = 11.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    Add 3 + 14 + 7.

    Formula:Addition of Three Numbers

    $\text{sum} = a + b + c$

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19. 19.

    Subtract 21 from 72.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    What is double 6?

    Formula:Doubling

    $d = 2 \times n$

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