Vietnam · Grade 4 · Practice Sheet 39

1. 1.

   Find the perimeter of a rectangle measuring 13 m by 22 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
2. 2.

   Find the mean (average) of these numbers: 39, 44, 31, 31, 21.

   Formula:Arithmetic Mean

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

   View formula →
3. 3.

   Find 5/8 of 152.

   Formula:Fraction of a Quantity

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

   View formula →
4. 4.

   Find the perimeter of a rectangle measuring 12 m by 21 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
5. 5.

   Convert 5.17 kilometres into metres.

   Formula:Metric Length Conversion

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

   View formula →
6. 6.

   What is 5 × 6?

   Formula:Multiplication (Times Tables)

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

   View formula →
7. 7.

   One item costs VND 13.75. Find the total cost of 17 items.

   Formula:Total Cost

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

   View formula →
8. 8.

   Calculate 50 × 6.

   Formula:Multiplication

   $p = a \times b$

   View formula →
9. 9.

   Calculate 352 ÷ 11.

   Formula:Division

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

   View formula →
10. 10.

    Find the mean (average) of these numbers: 27, 64, 74, 24, 28, 10.

    Formula:Arithmetic Mean

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

    View formula →
11. 11.

    What is 7 × 4?

    Formula:Multiplication (Times Tables)

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

    View formula →
12. 12.

    Calculate 63 × 7.

    Formula:Multiplication

    $p = a \times b$

    View formula →
13. 13.

    One item costs VND 12.17. Find the total cost of 18 items.

    Formula:Total Cost

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

    View formula →
14. 14.

    Find the mean (average) of these numbers: 90, 58, 27, 38, 31.

    Formula:Arithmetic Mean

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

    View formula →
15. 15.

    Find the perimeter of a rectangle measuring 24 m by 14 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
16. 16.

    Find the mean (average) of these numbers: 64, 10, 38, 21, 42.

    Formula:Arithmetic Mean

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

    View formula →
17. 17.

    Calculate 240 ÷ 8.

    Formula:Division

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

    View formula →
18. 18.

    What is 2 × 10?

    Formula:Multiplication (Times Tables)

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

    View formula →
19. 19.

    54 sweets are shared equally among 6 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

    View formula →
20. 20.

    Find the area of a square with side length 29 cm.

    Formula:Area of a Square

    $A = s^2$

    View formula →

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