Thailand · Grade 3 · Practice Sheet 35

1. 1.

   You have ฿9 and ฿5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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2. 2.

   How many tens are there in the number 37?

   Formula:Place Value

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

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3. 3.

   Fill in the missing number: 14 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   Add 70 and 44.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   You have ฿6 and ฿4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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6. 6.

   Fill in the missing number: 5 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 21?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Add 82 and 35.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   Subtract 15 from 80.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    Fill in the missing number: 10 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is double 14?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Add 4 + 17 + 9.

    Formula:Addition of Three Numbers

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

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13. 13.

    14 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.

    What is half of 26?

    Formula:Halving

    $h = n \div 2$

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15. 15.

    Add 5 + 4 + 20.

    Formula:Addition of Three Numbers

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

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16. 16.

    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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17. 17.

    16 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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18. 18.

    Add 40 and 29.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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20. 20.

    Fill in the missing number: 15 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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