South Korea · Grade 3 · Practice Sheet 20

1. 1.

   32 sweets are shared equally among 4 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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2. 2.

   What is 9 × 2?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   How many tens are there in the number 31?

   Formula:Place Value

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

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4. 4.

   Fill in the missing number: 2 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   Add 22 and 26.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   Subtract 22 from 32.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   9 sweets are shared equally among 3 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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8. 8.

   You have ₩5 and ₩5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

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

   Formula:Skip Counting

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

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10. 10.

    Fill in the missing number: 7 + ___ = 10.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is double 14?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Fill in the missing number: 12 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Continue the pattern by counting in 5s: 15, 20, ___

    Formula:Skip Counting

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

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14. 14.

    Add 49 and 32.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    Subtract 58 from 87.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    10 sweets are shared equally among 2 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

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17. 17.

    What is 2 × 7?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Add 18 + 15 + 11.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is half of 4?

    Formula:Halving

    $h = n \div 2$

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20. 20.

    24 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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