Thailand · Grade 4 · Practice Sheet 29

1. 1.

   What is 9 × 5?

   Formula:Multiplication (Times Tables)

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

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2. 2.

   Calculate 32 ÷ 4.

   Formula:Division

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

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3. 3.

   One item costs ฿12.2. Find the total cost of 6 items.

   Formula:Total Cost

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

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4. 4.

   Calculate 67 × 12.

   Formula:Multiplication

   $p = a \times b$

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5. 5.

   Convert 8.21 kilometres into metres.

   Formula:Metric Length Conversion

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

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6. 6.

   Find the perimeter of a rectangle measuring 41 m by 28 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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7. 7.

   An item costs ฿16.05 and you pay with ฿20. How much change do you get?

   Formula:Change Due

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

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8. 8.

   Calculate 46 × 3.

   Formula:Multiplication

   $p = a \times b$

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9. 9.

   Find the mean (average) of these numbers: 48, 17, 98, 51, 58, 62.

   Formula:Arithmetic Mean

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

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10. 10.

    An item costs ฿44.57 and you pay with ฿60. How much change do you get?

    Formula:Change Due

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

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11. 11.

    Find the mean (average) of these numbers: 52, 38, 13, 40, 45, 36.

    Formula:Arithmetic Mean

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

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12. 12.

    One item costs ฿22.14. Find the total cost of 11 items.

    Formula:Total Cost

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

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13. 13.

    Find 7/8 of 48.

    Formula:Fraction of a Quantity

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

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14. 14.

    Find the perimeter of a rectangle measuring 37 m by 30 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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15. 15.

    An item costs ฿9.21 and you pay with ฿10. How much change do you get?

    Formula:Change Due

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

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16. 16.

    Convert 2.77 kilometres into metres.

    Formula:Metric Length Conversion

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

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17. 17.

    What is 4 × 2?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    A rectangle is 4 cm long and 28 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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19. 19.

    An item costs ฿2.81 and you pay with ฿20. How much change do you get?

    Formula:Change Due

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

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20. 20.

    27 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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