Thailand · Grade 3 · Practice Sheet 41

1. 1.

   What is half of 44?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   Continue the pattern by counting in 2s: 2, 4, ___

   Formula:Skip Counting

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

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3. 3.

   Fill in the missing number: 7 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   There are 4 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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5. 5.

   Add 2 + 16 + 20.

   Formula:Addition of Three Numbers

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

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6. 6.

   Add 70 and 7.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   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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8. 8.

   You have ฿8 and ฿2. 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 3s: 6, 9, ___

   Formula:Skip Counting

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

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10. 10.

    Subtract 21 from 73.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    There are 6 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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12. 12.

    Fill in the missing number: 15 + ___ = 28.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    There are 3 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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14. 14.

    What is double 13?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    Add 16 + 8 + 11.

    Formula:Addition of Three Numbers

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

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16. 16.

    Add 16 and 51.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    What is double 22?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    45 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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19. 19.

    Add 55 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Subtract 65 from 99.

    Formula:Subtraction

    $\text{difference} = a - b$

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