Cambodia · Grade 4 · Practice Sheet 16

1. 1.

   Find 1/3 of 45.

   Formula:Fraction of a Quantity

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

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2. 2.

   Calculate 27 × 12.

   Formula:Multiplication

   $p = a \times b$

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3. 3.

   An item costs ៛ 14.06 and you pay with ៛ 20. How much change do you get?

   Formula:Change Due

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

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4. 4.

   4 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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5. 5.

   A rectangle is 13 cm long and 19 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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6. 6.

   Find 1/2 of 38.

   Formula:Fraction of a Quantity

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

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7. 7.

   Convert 4.93 kilometres into metres.

   Formula:Metric Length Conversion

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

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8. 8.

   Find the area of a square with side length 19 cm.

   Formula:Area of a Square

   $A = s^2$

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9. 9.

   What is 2 × 4?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    A rectangle is 31 cm long and 15 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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11. 11.

    Calculate 73 × 11.

    Formula:Multiplication

    $p = a \times b$

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12. 12.

    Calculate 238 ÷ 7.

    Formula:Division

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

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13. 13.

    Convert 3.99 kilometres into metres.

    Formula:Metric Length Conversion

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

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14. 14.

    Find the perimeter of a rectangle measuring 37 m by 27 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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15. 15.

    An item costs ៛ 43.49 and you pay with ៛ 50. How much change do you get?

    Formula:Change Due

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

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16. 16.

    What is 2 × 2?

    Formula:Multiplication (Times Tables)

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

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17. 17.

    Calculate 154 ÷ 7.

    Formula:Division

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

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18. 18.

    Calculate 24 × 5.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    Calculate 333 ÷ 9.

    Formula:Division

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

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20. 20.

    Find the perimeter of a rectangle measuring 21 m by 35 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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