Germany · Klasse 4 · Practice Sheet 33

1. 1.

   Find the perimeter of a rectangle measuring 37 m by 17 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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2. 2.

   One item costs €14. Find the total cost of 20 items.

   Formula:Total Cost

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

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3. 3.

   Calculate 39 × 5.

   Formula:Multiplication

   $p = a \times b$

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4. 4.

   Calculate 66 ÷ 6.

   Formula:Division

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

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5. 5.

   What is 9 × 8?

   Formula:Multiplication (Times Tables)

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

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6. 6.

   Calculate 81 × 8.

   Formula:Multiplication

   $p = a \times b$

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7. 7.

   Calculate 385 ÷ 11.

   Formula:Division

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

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8. 8.

   Find the mean (average) of these numbers: 24, 48, 68, 21, 72, 16.

   Formula:Arithmetic Mean

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

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9. 9.

   Convert 2.54 kilometres into metres.

   Formula:Metric Length Conversion

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

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10. 10.

    A rectangle is 7 cm long and 23 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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11. 11.

    Find the area of a square with side length 3 cm.

    Formula:Area of a Square

    $A = s^2$

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12. 12.

    Find the perimeter of a rectangle measuring 40 m by 28 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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13. 13.

    Find the mean (average) of these numbers: 22, 90, 85, 99, 51.

    Formula:Arithmetic Mean

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

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14. 14.

    Find 1/4 of 16.

    Formula:Fraction of a Quantity

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

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15. 15.

    Find the mean (average) of these numbers: 20, 66, 97, 42, 90, 20.

    Formula:Arithmetic Mean

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

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16. 16.

    One item costs €9.34. Find the total cost of 17 items.

    Formula:Total Cost

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

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17. 17.

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

    Formula:Area of a Square

    $A = s^2$

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18. 18.

    Find the perimeter of a rectangle measuring 33 m by 17 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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19. 19.

    An item costs €27.33 and you pay with €40. How much change do you get?

    Formula:Change Due

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

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20. 20.

    What is 3 × 9?

    Formula:Multiplication (Times Tables)

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

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