Hong Kong · Grade 2 · Practice Sheet 22

1. 1.

   What is half of 50?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   Add 10 + 18 + 14.

   Formula:Addition of Three Numbers

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

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3. 3.

   There are 4 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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4. 4.

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

   Formula:Skip Counting

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

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5. 5.

   Subtract 47 from 71.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Add 6 + 15 + 7.

   Formula:Addition of Three Numbers

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

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7. 7.

   Continue the pattern by counting in 10s: 0, 10, ___

   Formula:Skip Counting

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

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8. 8.

   What is 9 + 6?

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   How many tens are there in the number 60?

   Formula:Place Value

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

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10. 10.

    What is double 14?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    What is 7 − 1?

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    Subtract 24 from 45.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    Add 12 + 4 + 7.

    Formula:Addition of Three Numbers

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

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14. 14.

    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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15. 15.

    What is 5 × 4?

    Formula:Multiplication (Times Tables)

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

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16. 16.

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

    Formula:Adding Money

    $\text{total} = a + b$

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17. 17.

    Add 81 and 38.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    What is 7 × 9?

    Formula:Multiplication (Times Tables)

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

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19. 19.

    Add 13 + 15 + 5.

    Formula:Addition of Three Numbers

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

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20. 20.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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