Sri Lanka · Grade 4 · Practice Sheet 19

1. 1.

   Find the perimeter of a rectangle measuring 37 m by 20 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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2. 2.

   Find the area of a square with side length 15 cm.

   Formula:Area of a Square

   $A = s^2$

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3. 3.

   An item costs Rs 6.52 and you pay with Rs 20. How much change do you get?

   Formula:Change Due

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

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4. 4.

   Calculate 286 ÷ 11.

   Formula:Division

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

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5. 5.

   Find the perimeter of a rectangle measuring 6 m by 8 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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6. 6.

   Convert 1.7 kilometres into metres.

   Formula:Metric Length Conversion

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

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7. 7.

   One item costs Rs 1.73. Find the total cost of 11 items.

   Formula:Total Cost

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

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8. 8.

   A rectangle is 40 cm long and 30 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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9. 9.

   What is 2 × 7?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    Calculate 95 × 10.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Convert 10.5 kilometres into metres.

    Formula:Metric Length Conversion

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

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12. 12.

    One item costs Rs 21.57. Find the total cost of 16 items.

    Formula:Total Cost

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

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13. 13.

    What is 5 × 6?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    Calculate 272 ÷ 8.

    Formula:Division

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

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15. 15.

    Find the perimeter of a rectangle measuring 19 m by 4 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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16. 16.

    Find 3/8 of 104.

    Formula:Fraction of a Quantity

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

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17. 17.

    Calculate 25 × 4.

    Formula:Multiplication

    $p = a \times b$

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18. 18.

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

    Formula:Area of a Square

    $A = s^2$

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19. 19.

    Convert 5.3 kilometres into metres.

    Formula:Metric Length Conversion

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

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20. 20.

    Calculate 120 ÷ 12.

    Formula:Division

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

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