Belgium · Year 3 · Practice Sheet 45

1. 1.

   Add 11 + 8 + 10.

   Formula:Addition of Three Numbers

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

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2. 2.

   Subtract 33 from 87.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Add 87 and 42.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   Continue the pattern by counting in 3s: 12, 15, ___

   Formula:Skip Counting

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

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5. 5.

   Add 24 and 51.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   Subtract 43 from 82.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Fill in the missing number: 12 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   16 sweets are shared equally among 2 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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9. 9.

   What is double 21?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    Fill in the missing number: 2 + ___ = 9.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is half of 38?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    27 sweets are shared equally among 3 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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13. 13.

    Add 15 + 13 + 7.

    Formula:Addition of Three Numbers

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

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14. 14.

    What is half of 22?

    Formula:Halving

    $h = n \div 2$

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15. 15.

    How many tens are there in the number 14?

    Formula:Place Value

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

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16. 16.

    Add 4 + 2 + 9.

    Formula:Addition of Three Numbers

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

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17. 17.

    Subtract 52 from 65.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    Add 18 + 19 + 10.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is 8 × 7?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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20. 20.

    How many tens are there in the number 90?

    Formula:Place Value

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

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