Cambodia · Grade 3 · Practice Sheet 24

1. 1.

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

   Formula:Skip Counting

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

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2. 2.

   Add 7 + 2 + 12.

   Formula:Addition of Three Numbers

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

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3. 3.

   What is half of 4?

   Formula:Halving

   $h = n \div 2$

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4. 4.

   Fill in the missing number: 11 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   How many tens are there in the number 20?

   Formula:Place Value

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

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6. 6.

   What is 5 × 8?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   You have ៛ 2 and ៛ 6. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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8. 8.

   How many tens are there in the number 62?

   Formula:Place Value

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

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9. 9.

   Fill in the missing number: 14 + ___ = 18.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    24 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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11. 11.

    What is double 5?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

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

    Formula:Skip Counting

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

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13. 13.

    Add 32 and 53.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    Add 2 + 12 + 16.

    Formula:Addition of Three Numbers

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

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15. 15.

    Fill in the missing number: 2 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    What is double 15?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    How many tens are there in the number 84?

    Formula:Place Value

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

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18. 18.

    You have ៛ 3 and ៛ 6. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    Add 40 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Add 11 + 17 + 13.

    Formula:Addition of Three Numbers

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

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