Taiwan · Grade 4 · Practice Sheet 30

1. 1.

   Convert 8.88 kilometres into metres.

   Formula:Metric Length Conversion

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

   View formula →
2. 2.

   Find the area of a square with side length 20 cm.

   Formula:Area of a Square

   $A = s^2$

   View formula →
3. 3.

   Find the mean (average) of these numbers: 33, 46, 59, 86.

   Formula:Arithmetic Mean

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

   View formula →
4. 4.

   Find the area of a square with side length 5 cm.

   Formula:Area of a Square

   $A = s^2$

   View formula →
5. 5.

   Calculate 132 ÷ 6.

   Formula:Division

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

   View formula →
6. 6.

   What is 2 × 9?

   Formula:Multiplication (Times Tables)

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

   View formula →
7. 7.

   Find the mean (average) of these numbers: 67, 52, 22, 89, 72.

   Formula:Arithmetic Mean

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

   View formula →
8. 8.

   One item costs NT$ 7.32. Find the total cost of 8 items.

   Formula:Total Cost

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

   View formula →
9. 9.

   Find the perimeter of a rectangle measuring 16 m by 32 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
10. 10.

    Find 1/3 of 21.

    Formula:Fraction of a Quantity

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

    View formula →
11. 11.

    One item costs NT$ 19.92. Find the total cost of 20 items.

    Formula:Total Cost

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

    View formula →
12. 12.

    Find the area of a square with side length 27 cm.

    Formula:Area of a Square

    $A = s^2$

    View formula →
13. 13.

    Calculate 228 ÷ 12.

    Formula:Division

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

    View formula →
14. 14.

    Convert 5.67 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →
15. 15.

    Find the mean (average) of these numbers: 69, 67, 29, 77, 35, 55.

    Formula:Arithmetic Mean

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

    View formula →
16. 16.

    Find the area of a square with side length 13 cm.

    Formula:Area of a Square

    $A = s^2$

    View formula →
17. 17.

    Find the mean (average) of these numbers: 92, 43, 48, 59, 32.

    Formula:Arithmetic Mean

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

    View formula →
18. 18.

    Convert 2.07 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →
19. 19.

    Find the mean (average) of these numbers: 56, 11, 82, 73, 85, 65.

    Formula:Arithmetic Mean

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

    View formula →
20. 20.

    One item costs NT$ 10.22. Find the total cost of 12 items.

    Formula:Total Cost

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

    View formula →

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