Ghana · Grade 4 · Practice Sheet 48

1. 1.

   Find the mean (average) of these numbers: 22, 85, 28, 83, 70.

   Formula:Arithmetic Mean

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

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2. 2.

   One item costs GH₵ 1.6. Find the total cost of 8 items.

   Formula:Total Cost

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

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3. 3.

   An item costs GH₵ 3.18 and you pay with GH₵ 10. How much change do you get?

   Formula:Change Due

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

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4. 4.

   Find the area of a square with side length 8 cm.

   Formula:Area of a Square

   $A = s^2$

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5. 5.

   Calculate 19 × 8.

   Formula:Multiplication

   $p = a \times b$

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6. 6.

   Find 2/8 of 96.

   Formula:Fraction of a Quantity

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

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7. 7.

   Find the area of a square with side length 5 cm.

   Formula:Area of a Square

   $A = s^2$

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8. 8.

   What is 7 × 10?

   Formula:Multiplication (Times Tables)

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

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9. 9.

   Find the perimeter of a rectangle measuring 23 m by 23 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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10. 10.

    Find the mean (average) of these numbers: 95, 41, 42, 10, 26.

    Formula:Arithmetic Mean

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

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11. 11.

    Convert 8.5 kilometres into metres.

    Formula:Metric Length Conversion

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

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12. 12.

    Calculate 82 × 6.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    Find the perimeter of a rectangle measuring 21 m by 31 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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14. 14.

    What is 3 × 4?

    Formula:Multiplication (Times Tables)

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

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15. 15.

    Find the perimeter of a rectangle measuring 10 m by 6 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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16. 16.

    6 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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17. 17.

    One item costs GH₵ 23.37. Find the total cost of 8 items.

    Formula:Total Cost

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

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18. 18.

    Calculate 24 × 10.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    Calculate 198 ÷ 9.

    Formula:Division

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

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20. 20.

    An item costs GH₵ 19.4 and you pay with GH₵ 30. How much change do you get?

    Formula:Change Due

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

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