Belgium · Year 4 · Practice Sheet 40

1. 1.

   Find the mean (average) of these numbers: 19, 67, 58, 60, 88, 56.

   Formula:Arithmetic Mean

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

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2. 2.

   Calculate 91 ÷ 7.

   Formula:Division

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

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3. 3.

   One item costs €21.87. Find the total cost of 5 items.

   Formula:Total Cost

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

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4. 4.

   Calculate 51 × 9.

   Formula:Multiplication

   $p = a \times b$

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5. 5.

   Find the area of a square with side length 17 cm.

   Formula:Area of a Square

   $A = s^2$

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6. 6.

   Convert 8.25 kilometres into metres.

   Formula:Metric Length Conversion

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

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7. 7.

   Calculate 78 ÷ 6.

   Formula:Division

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

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8. 8.

   Find the perimeter of a rectangle measuring 42 m by 15 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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9. 9.

   One item costs €9.45. Find the total cost of 18 items.

   Formula:Total Cost

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

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10. 10.

    Convert 9.97 kilometres into metres.

    Formula:Metric Length Conversion

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

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11. 11.

    Calculate 40 × 10.

    Formula:Multiplication

    $p = a \times b$

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12. 12.

    Calculate 228 ÷ 6.

    Formula:Division

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

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13. 13.

    Find 1/2 of 16.

    Formula:Fraction of a Quantity

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

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14. 14.

    Find the area of a square with side length 9 cm.

    Formula:Area of a Square

    $A = s^2$

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15. 15.

    What is 5 × 2?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    Calculate 200 ÷ 8.

    Formula:Division

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

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17. 17.

    Calculate 63 × 12.

    Formula:Multiplication

    $p = a \times b$

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18. 18.

    Calculate 162 ÷ 6.

    Formula:Division

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

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19. 19.

    Find the mean (average) of these numbers: 48, 71, 27, 43, 67.

    Formula:Arithmetic Mean

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

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20. 20.

    An item costs €18.34 and you pay with €30. How much change do you get?

    Formula:Change Due

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

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