Ethiopia · Grade 4 · Practice Sheet 41

1. 1.

   Find the mean (average) of these numbers: 96, 79, 43, 71, 44, 11.

   Formula:Arithmetic Mean

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

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2. 2.

   Calculate 16 × 10.

   Formula:Multiplication

   $p = a \times b$

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3. 3.

   What is 9 × 3?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   A rectangle is 20 cm long and 19 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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5. 5.

   Find the perimeter of a rectangle measuring 11 m by 32 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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6. 6.

   Find the mean (average) of these numbers: 93, 34, 72, 29, 32.

   Formula:Arithmetic Mean

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

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7. 7.

   An item costs Br 34.22 and you pay with Br 50. How much change do you get?

   Formula:Change Due

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

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8. 8.

   Calculate 80 × 4.

   Formula:Multiplication

   $p = a \times b$

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9. 9.

   Convert 11.41 kilometres into metres.

   Formula:Metric Length Conversion

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

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10. 10.

    28 sweets are shared equally among 4 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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11. 11.

    What is 6 × 4?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    Calculate 13 × 12.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    Calculate 60 ÷ 3.

    Formula:Division

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

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14. 14.

    An item costs Br 25.84 and you pay with Br 30. How much change do you get?

    Formula:Change Due

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

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15. 15.

    A rectangle is 38 cm long and 12 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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16. 16.

    What is 2 × 9?

    Formula:Multiplication (Times Tables)

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

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17. 17.

    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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18. 18.

    Calculate 76 × 4.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    Calculate 40 ÷ 4.

    Formula:Division

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

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20. 20.

    30 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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