South Africa · Grade 5 · Practice Sheet 38

1. 1.

   Find the mean (average) of these numbers: 63, 67, 40, 25.

   Formula:Arithmetic Mean

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

   View formula →
2. 2.

   Calculate 100 ÷ 4.

   Formula:Division

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

   View formula →
3. 3.

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

   Formula:Area of a Square

   $A = s^2$

   View formula →
4. 4.

   Calculate 70 ÷ 10.

   Formula:Division

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

   View formula →
5. 5.

   One item costs R4.61. Find the total cost of 9 items.

   Formula:Total Cost

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

   View formula →
6. 6.

   Find the perimeter of a rectangle measuring 14 m by 35 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
7. 7.

   A car travels 399 km in 7 hours. Find its average speed.

   Formula:Speed

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

   View formula →
8. 8.

   Find the mean (average) of these numbers: 71, 26, 87, 22, 70, 70.

   Formula:Arithmetic Mean

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

   View formula →
9. 9.

   A car travels 564 km in 6 hours. Find its average speed.

   Formula:Speed

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

   View formula →
10. 10.

    Calculate 16 × 4.

    Formula:Multiplication

    $p = a \times b$

    View formula →
11. 11.

    A train moves at 33 km/h for 3.1 hours. How far does it travel?

    Formula:Distance from Speed & Time

    $d = v \times t$

    View formula →
12. 12.

    Convert 5.71 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →
13. 13.

    Find the perimeter of a rectangle measuring 16 m by 31 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
14. 14.

    Calculate 15 ÷ 3.

    Formula:Division

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

    View formula →
15. 15.

    What is 12% of 510?

    Formula:Percentage of a Quantity

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

    View formula →
16. 16.

    Calculate 24 × 5.

    Formula:Multiplication

    $p = a \times b$

    View formula →
17. 17.

    What is 10% of 290?

    Formula:Percentage of a Quantity

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

    View formula →
18. 18.

    An item costs R24.88 and you pay with R40. How much change do you get?

    Formula:Change Due

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

    View formula →
19. 19.

    Convert 6.75 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →
20. 20.

    Calculate 30 ÷ 6.

    Formula:Division

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

    View formula →

© FormulaWon — formulawon.app · Answers & step-by-step working available on the solutions sheet.