South Korea · Grade 5 · Practice Sheet 24

1. 1.

   An item costs ₩31.72 and you pay with ₩50. How much change do you get?

   Formula:Change Due

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

   View formula →
2. 2.

   Convert 11.61 kilometres into metres.

   Formula:Metric Length Conversion

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

   View formula →
3. 3.

   Calculate 234 ÷ 9.

   Formula:Division

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

   View formula →
4. 4.

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

   Formula:Area of a Square

   $A = s^2$

   View formula →
5. 5.

   Calculate 121 ÷ 11.

   Formula:Division

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

   View formula →
6. 6.

   A train moves at 70 km/h for 2.4 hours. How far does it travel?

   Formula:Distance from Speed & Time

   $d = v \times t$

   View formula →
7. 7.

   Find the mean (average) of these numbers: 98, 31, 34, 17, 24.

   Formula:Arithmetic Mean

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

   View formula →
8. 8.

   A triangle has a base of 18 cm and a height of 15 cm. Find its area.

   Formula:Area of a Triangle

   $A = \tfrac{1}{2} b h$

   View formula →
9. 9.

   Convert 6.49 kilometres into metres.

   Formula:Metric Length Conversion

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

   View formula →
10. 10.

    Find 2/4 of 36.

    Formula:Fraction of a Quantity

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

    View formula →
11. 11.

    Calculate 110 ÷ 5.

    Formula:Division

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

    View formula →
12. 12.

    A rectangle is 20 cm long and 14 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

    View formula →
13. 13.

    Calculate 138 ÷ 6.

    Formula:Division

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

    View formula →
14. 14.

    Find the area of a square with side length 6 cm.

    Formula:Area of a Square

    $A = s^2$

    View formula →
15. 15.

    Calculate 110 ÷ 11.

    Formula:Division

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

    View formula →
16. 16.

    Find the mean (average) of these numbers: 75, 86, 18, 55, 21.

    Formula:Arithmetic Mean

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

    View formula →
17. 17.

    Find the perimeter of a rectangle measuring 39 m by 11 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
18. 18.

    A triangle has a base of 40 cm and a height of 25 cm. Find its area.

    Formula:Area of a Triangle

    $A = \tfrac{1}{2} b h$

    View formula →
19. 19.

    An item costs ₩39.12 and you pay with ₩50. How much change do you get?

    Formula:Change Due

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

    View formula →
20. 20.

    Find 1/4 of 20.

    Formula:Fraction of a Quantity

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

    View formula →

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