Hong Kong · Grade 3 · Practice Sheet 41

1. 1.

   Subtract 35 from 50.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

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

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   You have HK$ 6 and HK$ 8. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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4. 4.

   What is 4 × 2?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   42 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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6. 6.

   You have HK$ 9 and HK$ 8. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   Add 20 + 18 + 14.

   Formula:Addition of Three Numbers

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

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8. 8.

   What is 5 × 9?

   Formula:Multiplication (Times Tables)

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

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9. 9.

   Subtract 36 from 43.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    Add 25 and 43.

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    How many tens are there in the number 48?

    Formula:Place Value

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

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12. 12.

    What is double 3?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    Add 26 and 53.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    Continue the pattern by counting in 5s: 10, 15, ___

    Formula:Skip Counting

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

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15. 15.

    Add 16 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is double 20?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    How many tens are there in the number 68?

    Formula:Place Value

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

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19. 19.

    Continue the pattern by counting in 2s: 4, 6, ___

    Formula:Skip Counting

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

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20. 20.

    You have HK$ 4 and HK$ 9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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