Indonesia · Grade 4 · Practice Sheet 26

1. 1.

   A rectangle is 39 cm long and 4 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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2. 2.

   An item costs Rp 2.91 and you pay with Rp 20. How much change do you get?

   Formula:Change Due

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

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3. 3.

   Find the mean (average) of these numbers: 40, 14, 25, 90, 11, 84.

   Formula:Arithmetic Mean

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

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4. 4.

   Convert 7.06 kilometres into metres.

   Formula:Metric Length Conversion

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

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5. 5.

   A rectangle is 37 cm long and 23 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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6. 6.

   Find the perimeter of a rectangle measuring 17 m by 30 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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7. 7.

   Calculate 60 × 3.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   12 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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9. 9.

   Find 1/3 of 60.

   Formula:Fraction of a Quantity

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

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10. 10.

    Find the mean (average) of these numbers: 70, 28, 80, 34, 71, 32.

    Formula:Arithmetic Mean

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

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11. 11.

    Calculate 95 ÷ 5.

    Formula:Division

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

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12. 12.

    What is 9 × 3?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    An item costs Rp 4.91 and you pay with Rp 10. How much change do you get?

    Formula:Change Due

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

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14. 14.

    What is 6 × 6?

    Formula:Multiplication (Times Tables)

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

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15. 15.

    Calculate 79 × 7.

    Formula:Multiplication

    $p = a \times b$

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16. 16.

    Find the area of a square with side length 17 cm.

    Formula:Area of a Square

    $A = s^2$

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17. 17.

    An item costs Rp 13.96 and you pay with Rp 30. How much change do you get?

    Formula:Change Due

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

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18. 18.

    Calculate 72 ÷ 8.

    Formula:Division

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

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19. 19.

    A rectangle is 40 cm long and 12 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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20. 20.

    Find the perimeter of a rectangle measuring 18 m by 13 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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