Nigeria · Grade 4 · Practice Sheet 35

1. 1.

   Find the perimeter of a rectangle measuring 25 m by 17 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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2. 2.

   Convert 9.29 kilometres into metres.

   Formula:Metric Length Conversion

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

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3. 3.

   Calculate 21 × 7.

   Formula:Multiplication

   $p = a \times b$

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4. 4.

   Calculate 198 ÷ 11.

   Formula:Division

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

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5. 5.

   Find the area of a square with side length 30 cm.

   Formula:Area of a Square

   $A = s^2$

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6. 6.

   One item costs ₦21.66. Find the total cost of 18 items.

   Formula:Total Cost

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

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7. 7.

   Calculate 81 × 4.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   Find the mean (average) of these numbers: 18, 12, 42, 92, 83.

   Formula:Arithmetic Mean

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

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9. 9.

   Find 1/8 of 40.

   Formula:Fraction of a Quantity

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

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10. 10.

    12 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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11. 11.

    Find the perimeter of a rectangle measuring 45 m by 31 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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12. 12.

    Find the mean (average) of these numbers: 24, 11, 17, 86, 56.

    Formula:Arithmetic Mean

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

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13. 13.

    Find the area of a square with side length 22 cm.

    Formula:Area of a Square

    $A = s^2$

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14. 14.

    Calculate 162 ÷ 6.

    Formula:Division

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

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15. 15.

    Find the mean (average) of these numbers: 73, 92, 67, 56, 87, 52.

    Formula:Arithmetic Mean

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

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16. 16.

    Calculate 23 × 9.

    Formula:Multiplication

    $p = a \times b$

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17. 17.

    An item costs ₦9.05 and you pay with ₦10. How much change do you get?

    Formula:Change Due

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

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18. 18.

    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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19. 19.

    Find the area of a square with side length 26 cm.

    Formula:Area of a Square

    $A = s^2$

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20. 20.

    Find 4/8 of 136.

    Formula:Fraction of a Quantity

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

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