Hong Kong · Grade 3 · Practice Sheet 27

1. 1.

   Fill in the missing number: 8 + ___ = 16.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   Subtract 5 from 91.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Continue the pattern by counting in 3s: 0, 3, ___

   Formula:Skip Counting

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

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4. 4.

   Add 70 and 26.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   24 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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6. 6.

   Fill in the missing number: 6 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Continue the pattern by counting in 2s: 6, 8, ___

   Formula:Skip Counting

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

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8. 8.

   There are 3 bags with 7 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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9. 9.

   4 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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10. 10.

    Subtract 31 from 58.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is double 10?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    You have HK$ 8 and HK$ 1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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13. 13.

    What is double 4?

    Formula:Doubling

    $d = 2 \times n$

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14. 14.

    Fill in the missing number: 10 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    40 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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16. 16.

    Add 51 and 9.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    Fill in the missing number: 6 + ___ = 9.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    Subtract 7 from 30.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    Add 18 + 12 + 15.

    Formula:Addition of Three Numbers

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

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