Thailand · Grade 3 · Practice Sheet 42

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 29 and 48.

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 20 + 5 + 9.

   Formula:Addition of Three Numbers

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

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4. 4.

   Fill in the missing number: 8 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   Add 69 and 48.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   Fill in the missing number: 3 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Add 17 + 6 + 10.

   Formula:Addition of Three Numbers

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

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8. 8.

   Fill in the missing number: 10 + ___ = 13.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   9 sweets are shared equally among 3 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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10. 10.

    What is 9 × 7?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    How many tens are there in the number 96?

    Formula:Place Value

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

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12. 12.

    Add 12 + 18 + 19.

    Formula:Addition of Three Numbers

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

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13. 13.

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

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    Subtract 9 from 30.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    Add 20 and 17.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is double 6?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is half of 46?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    Continue the pattern by counting in 3s: 6, 9, ___

    Formula:Skip Counting

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

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19. 19.

    Add 19 + 13 + 12.

    Formula:Addition of Three Numbers

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

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20. 20.

    You have ฿8 and ฿9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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