Cambodia · Grade 3 · Practice Sheet 18

1. 1.

   You have ៛ 3 and ៛ 5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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2. 2.

   Add 9 + 10 + 18.

   Formula:Addition of Three Numbers

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

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3. 3.

   There are 5 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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4. 4.

   You have ៛ 7 and ៛ 9. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   How many tens are there in the number 53?

   Formula:Place Value

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

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6. 6.

   Add 2 + 2 + 3.

   Formula:Addition of Three Numbers

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

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7. 7.

   Add 70 and 59.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

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

   Formula:Skip Counting

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

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9. 9.

   Add 12 + 5 + 2.

   Formula:Addition of Three Numbers

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

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10. 10.

    Subtract 15 from 49.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is 3 × 10?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    There are 3 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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13. 13.

    16 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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14. 14.

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

    Formula:Skip Counting

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

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15. 15.

    What is half of 36?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    Add 13 + 10 + 18.

    Formula:Addition of Three Numbers

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

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17. 17.

    What is half of 42?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    What is 3 × 6?

    Formula:Multiplication (Times Tables)

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

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19. 19.

    How many tens are there in the number 91?

    Formula:Place Value

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

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20. 20.

    Subtract 19 from 42.

    Formula:Subtraction

    $\text{difference} = a - b$

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