Hong Kong · Grade 2 · Practice Sheet 4

1. 1.

   Continue the pattern by counting in 2s: 8, 10, ___

   Formula:Skip Counting

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

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2. 2.

   What is double 3?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   Fill in the missing number: 2 + ___ = 8.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   You have HK$ 4 and HK$ 1. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   What is 16 − 5?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   What is 3 × 3?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Subtract 42 from 70.

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

   Add 2 + 2 + 6.

   Formula:Addition of Three Numbers

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

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9. 9.

   What is double 2?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    Fill in the missing number: 2 + ___ = 7.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    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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12. 12.

    Add 83 and 49.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Subtract 19 from 34.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    How many tens are there in the number 86?

    Formula:Place Value

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

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15. 15.

    Fill in the missing number: 11 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    What is double 16?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    Fill in the missing number: 12 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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19. 19.

    What is 18 − 12?

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    Add 16 + 5 + 18.

    Formula:Addition of Three Numbers

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

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