Sri Lanka · Grade 6 · Practice Sheet 2

1. 1.

   A rectangle is 33 cm long and 30 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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2. 2.

   Find the circumference of a circle whose radius is 22 m. (Use π ≈ 3.14159)

   Formula:Circumference of a Circle

   $C = 2\pi r$

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3. 3.

   A rectangle is 34 cm long and 19 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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4. 4.

   Find the circumference of a circle whose radius is 24 m. (Use π ≈ 3.14159)

   Formula:Circumference of a Circle

   $C = 2\pi r$

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5. 5.

   Calculate 85 × 7.

   Formula:Multiplication

   $p = a \times b$

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6. 6.

   One item costs Rs 17.16. Find the total cost of 14 items.

   Formula:Total Cost

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

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7. 7.

   Calculate 59 × 5.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   Rs 3,000 is invested at 8% simple interest per year for 4 years. Find the interest earned.

   Formula:Simple Interest

   $I = \dfrac{P \times r \times t}{100}$

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9. 9.

   Calculate 78 × 6.

   Formula:Multiplication

   $p = a \times b$

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10. 10.

    What is 30% of 350?

    Formula:Percentage of a Quantity

    $\text{result} = \dfrac{p}{100} \times N$

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11. 11.

    Calculate 73 × 4.

    Formula:Multiplication

    $p = a \times b$

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12. 12.

    Find the area of a square with side length 16 cm.

    Formula:Area of a Square

    $A = s^2$

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13. 13.

    Find the circumference of a circle whose radius is 9 m. (Use π ≈ 3.14159)

    Formula:Circumference of a Circle

    $C = 2\pi r$

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14. 14.

    Calculate 14 × 9.

    Formula:Multiplication

    $p = a \times b$

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15. 15.

    Calculate 222 ÷ 6.

    Formula:Division

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

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16. 16.

    Convert 10 kilometres into metres.

    Formula:Metric Length Conversion

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

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17. 17.

    A rectangle is 8 cm long and 4 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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18. 18.

    Calculate 270 ÷ 9.

    Formula:Division

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

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19. 19.

    A car travels 340 km in 4 hours. Find its average speed.

    Formula:Speed

    $v = \dfrac{d}{t}$

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20. 20.

    Find the mean (average) of these numbers: 46, 76, 88, 69, 64, 99.

    Formula:Arithmetic Mean

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

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