Thailand · Grade 3 · Practice Sheet 47

1. 1.

   What is double 5?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   How many tens are there in the number 41?

   Formula:Place Value

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

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3. 3.

   Subtract 14 from 63.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   48 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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5. 5.

   Subtract 31 from 52.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 10 + ___ = 25.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

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

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

   What is half of 20?

   Formula:Halving

   $h = n \div 2$

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10. 10.

    What is double 12?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    There are 6 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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12. 12.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    Subtract 45 from 78.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    How many tens are there in the number 86?

    Formula:Place Value

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

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15. 15.

    20 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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16. 16.

    Continue the pattern by counting in 3s: 0, 3, ___

    Formula:Skip Counting

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

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17. 17.

    What is half of 44?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    What is 6 × 3?

    Formula:Multiplication (Times Tables)

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

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19. 19.

    Subtract 53 from 74.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    Fill in the missing number: 4 + ___ = 17.

    Formula:Missing Addend

    $b = \text{total} - a$

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