Hong Kong · Grade 2 · Practice Sheet 3

1. 1.

   Add 66 and 10.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is half of 18?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   Add 20 + 19 + 11.

   Formula:Addition of Three Numbers

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

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4. 4.

   Continue the pattern by counting in 3s: 9, 12, ___

   Formula:Skip Counting

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

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5. 5.

   Fill in the missing number: 3 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   Continue the pattern by counting in 5s: 20, 25, ___

   Formula:Skip Counting

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

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7. 7.

   Add 56 and 20.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Subtract 17 from 53.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   What is 5 × 8?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    There are 3 bags with 3 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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11. 11.

    What is 4 × 8?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    Continue the pattern by counting in 10s: 10, 20, ___

    Formula:Skip Counting

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

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13. 13.

    What is 10 × 2?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    Continue the pattern by counting in 10s: 40, 50, ___

    Formula:Skip Counting

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

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15. 15.

    What is 17 − 13?

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    What is half of 14?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    How many tens are there in the number 38?

    Formula:Place Value

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

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18. 18.

    There are 6 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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19. 19.

    You have HK$ 5 and HK$ 1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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20. 20.

    What is double 14?

    Formula:Doubling

    $d = 2 \times n$

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