Cambodia · Grade 3 · Practice Sheet 48

1. 1.

   Add 2 + 11 + 12.

   Formula:Addition of Three Numbers

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

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2. 2.

   Add 29 and 14.

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 2 + 3 + 15.

   Formula:Addition of Three Numbers

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

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4. 4.

   You have ៛ 3 and ៛ 7. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   Add 11 + 12 + 3.

   Formula:Addition of Three Numbers

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

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6. 6.

   Subtract 29 from 40.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   What is 10 × 5?

   Formula:Multiplication (Times Tables)

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

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8. 8.

   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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9. 9.

   Subtract 21 from 91.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    Add 5 + 2 + 18.

    Formula:Addition of Three Numbers

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

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11. 11.

    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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12. 12.

    Add 34 and 14.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Fill in the missing number: 3 + ___ = 7.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    What is 5 × 6?

    Formula:Multiplication (Times Tables)

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

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15. 15.

    Add 85 and 6.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

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

    Formula:Skip Counting

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

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17. 17.

    Add 31 and 40.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    What is half of 8?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    There are 4 bags with 5 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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20. 20.

    What is 3 × 8?

    Formula:Multiplication (Times Tables)

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

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