Sri Lanka · Grade 4 · Practice Sheet 22

1. 1.

   Find 3/5 of 70.

   Formula:Fraction of a Quantity

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

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2. 2.

   Calculate 34 × 4.

   Formula:Multiplication

   $p = a \times b$

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3. 3.

   Find 1/4 of 44.

   Formula:Fraction of a Quantity

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

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4. 4.

   What is 9 × 3?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   An item costs Rs 23.43 and you pay with Rs 30. How much change do you get?

   Formula:Change Due

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

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6. 6.

   What is 3 × 2?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Find the mean (average) of these numbers: 48, 58, 64, 81, 86, 36.

   Formula:Arithmetic Mean

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

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8. 8.

   A rectangle is 33 cm long and 9 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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9. 9.

   Find the perimeter of a rectangle measuring 30 m by 28 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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10. 10.

    What is 3 × 8?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    One item costs Rs 3.37. Find the total cost of 3 items.

    Formula:Total Cost

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

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12. 12.

    Convert 5.18 kilometres into metres.

    Formula:Metric Length Conversion

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

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13. 13.

    What is 5 × 7?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    10 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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15. 15.

    What is 5 × 7?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    Calculate 136 ÷ 8.

    Formula:Division

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

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17. 17.

    Convert 5.56 kilometres into metres.

    Formula:Metric Length Conversion

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

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18. 18.

    54 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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19. 19.

    Calculate 65 × 10.

    Formula:Multiplication

    $p = a \times b$

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20. 20.

    Find the perimeter of a rectangle measuring 41 m by 31 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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