Australia · Year 4 · Practice Sheet 16

1. 1.

   Convert 6.03 kilometres into metres.

   Formula:Metric Length Conversion

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

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2. 2.

   A rectangle is 25 cm long and 24 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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3. 3.

   Find the perimeter of a rectangle measuring 23 m by 10 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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4. 4.

   Find the mean (average) of these numbers: 28, 49, 84, 94, 94.

   Formula:Arithmetic Mean

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

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5. 5.

   Calculate 84 ÷ 4.

   Formula:Division

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

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6. 6.

   An item costs $20.44 and you pay with $30. How much change do you get?

   Formula:Change Due

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

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7. 7.

   A rectangle is 4 cm long and 24 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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8. 8.

   Find the mean (average) of these numbers: 98, 42, 91, 76.

   Formula:Arithmetic Mean

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

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9. 9.

   Convert 7.98 kilometres into metres.

   Formula:Metric Length Conversion

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

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10. 10.

    Find 1/5 of 55.

    Formula:Fraction of a Quantity

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

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11. 11.

    Find the area of a square with side length 18 cm.

    Formula:Area of a Square

    $A = s^2$

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12. 12.

    Calculate 28 × 9.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    Find the area of a square with side length 29 cm.

    Formula:Area of a Square

    $A = s^2$

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14. 14.

    Find 6/8 of 136.

    Formula:Fraction of a Quantity

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

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15. 15.

    An item costs $9.82 and you pay with $10. How much change do you get?

    Formula:Change Due

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

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16. 16.

    Calculate 71 × 6.

    Formula:Multiplication

    $p = a \times b$

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17. 17.

    Calculate 124 ÷ 4.

    Formula:Division

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

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18. 18.

    Calculate 43 × 9.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    30 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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20. 20.

    One item costs $14.54. Find the total cost of 19 items.

    Formula:Total Cost

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

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