Thailand · Grade 4 · Practice Sheet 23

1. 1.

   Convert 9.21 kilometres into metres.

   Formula:Metric Length Conversion

   $1\,\text{km} = 1000\,\text{m}$

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2. 2.

   What is 10 × 4?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   An item costs ฿37.45 and you pay with ฿40. How much change do you get?

   Formula:Change Due

   $\text{change} = \text{paid} - \text{cost}$

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4. 4.

   Find 6/8 of 56.

   Formula:Fraction of a Quantity

   $\text{result} = \dfrac{a}{b} \times N$

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5. 5.

   Calculate 95 ÷ 5.

   Formula:Division

   $q = \dfrac{a}{b}$

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6. 6.

   25 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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7. 7.

   Calculate 33 × 8.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   Calculate 24 ÷ 4.

   Formula:Division

   $q = \dfrac{a}{b}$

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9. 9.

   What is 10 × 6?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    Convert 2.48 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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11. 11.

    One item costs ฿18.01. Find the total cost of 14 items.

    Formula:Total Cost

    $\text{total} = \text{price} \times \text{quantity}$

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12. 12.

    54 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.

    Find 3/5 of 90.

    Formula:Fraction of a Quantity

    $\text{result} = \dfrac{a}{b} \times N$

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14. 14.

    One item costs ฿7.17. Find the total cost of 17 items.

    Formula:Total Cost

    $\text{total} = \text{price} \times \text{quantity}$

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15. 15.

    Calculate 190 ÷ 10.

    Formula:Division

    $q = \dfrac{a}{b}$

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16. 16.

    Find the mean (average) of these numbers: 24, 25, 32, 65.

    Formula:Arithmetic Mean

    $\bar{x} = \dfrac{\sum x}{n}$

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17. 17.

    Convert 2.91 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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18. 18.

    Find 3/8 of 104.

    Formula:Fraction of a Quantity

    $\text{result} = \dfrac{a}{b} \times N$

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19. 19.

    Convert 6.22 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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20. 20.

    Calculate 49 × 5.

    Formula:Multiplication

    $p = a \times b$

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