Thailand · Grade 3 · Practice Sheet 2

1. 1.

   Continue the pattern by counting in 3s: 3, 6, ___

   Formula:Skip Counting

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

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2. 2.

   What is half of 22?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   What is double 10?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   Add 42 and 43.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   Continue the pattern by counting in 10s: 30, 40, ___

   Formula:Skip Counting

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

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6. 6.

   What is double 6?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   Fill in the missing number: 7 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   Subtract 79 from 84.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   Add 24 and 31.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    You have ฿5 and ฿4. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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11. 11.

    What is 2 × 3?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    42 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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13. 13.

    Subtract 44 from 53.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is half of 34?

    Formula:Halving

    $h = n \div 2$

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15. 15.

    What is 8 × 10?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    Add 12 + 16 + 8.

    Formula:Addition of Three Numbers

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

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17. 17.

    Subtract 66 from 88.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    You have ฿6 and ฿8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    Add 3 + 3 + 20.

    Formula:Addition of Three Numbers

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

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20. 20.

    Fill in the missing number: 6 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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