Ghana · Grade 4 · Practice Sheet 41

1. 1.

   One item costs GH₵ 22.35. Find the total cost of 9 items.

   Formula:Total Cost

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

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2. 2.

   Find the mean (average) of these numbers: 47, 96, 42, 23, 74, 31.

   Formula:Arithmetic Mean

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

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3. 3.

   Convert 6.46 kilometres into metres.

   Formula:Metric Length Conversion

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

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4. 4.

   Find the perimeter of a rectangle measuring 21 m by 22 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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5. 5.

   Find the area of a square with side length 12 cm.

   Formula:Area of a Square

   $A = s^2$

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6. 6.

   Calculate 108 ÷ 3.

   Formula:Division

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

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7. 7.

   Find the area of a square with side length 6 cm.

   Formula:Area of a Square

   $A = s^2$

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8. 8.

   Find the perimeter of a rectangle measuring 19 m by 20 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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9. 9.

   Convert 9.52 kilometres into metres.

   Formula:Metric Length Conversion

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

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10. 10.

    Calculate 25 × 4.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    One item costs GH₵ 17.7. Find the total cost of 20 items.

    Formula:Total Cost

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

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12. 12.

    Calculate 180 ÷ 5.

    Formula:Division

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

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13. 13.

    An item costs GH₵ 25 and you pay with GH₵ 40. How much change do you get?

    Formula:Change Due

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

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14. 14.

    One item costs GH₵ 3.97. Find the total cost of 9 items.

    Formula:Total Cost

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

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15. 15.

    Calculate 98 × 10.

    Formula:Multiplication

    $p = a \times b$

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16. 16.

    Calculate 133 ÷ 7.

    Formula:Division

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

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17. 17.

    An item costs GH₵ 18.5 and you pay with GH₵ 20. How much change do you get?

    Formula:Change Due

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

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18. 18.

    Calculate 53 × 6.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    An item costs GH₵ 31.27 and you pay with GH₵ 40. How much change do you get?

    Formula:Change Due

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

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20. 20.

    Calculate 66 ÷ 6.

    Formula:Division

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

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