Hong Kong · Grade 2 · Practice Sheet 18

1. 1.

   Subtract 34 from 66.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   What is double 3?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   What is 9 × 8?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   What is 5 + 1?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   There are 2 bags with 6 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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6. 6.

   What is 1 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 6 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is 13 − 10?

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   There are 4 bags with 4 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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10. 10.

    Add 71 and 18.

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    What is double 12?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Fill in the missing number: 6 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    You have HK$ 7 and HK$ 2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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15. 15.

    Fill in the missing number: 10 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    Subtract 23 from 33.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    Continue the pattern by counting in 5s: 0, 5, ___

    Formula:Skip Counting

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

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19. 19.

    What is double 4?

    Formula:Doubling

    $d = 2 \times n$

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20. 20.

    You have HK$ 7 and HK$ 2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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