Bangladesh · Class 4 · Practice Sheet 20

1. 1.

   What is 8 × 8?

   Formula:Multiplication (Times Tables)

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

   View formula →
2. 2.

   Find the mean (average) of these numbers: 71, 74, 41, 67, 91, 23.

   Formula:Arithmetic Mean

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

   View formula →
3. 3.

   Calculate 80 × 7.

   Formula:Multiplication

   $p = a \times b$

   View formula →
4. 4.

   One item costs ৳ 5.19. Find the total cost of 10 items.

   Formula:Total Cost

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

   View formula →
5. 5.

   An item costs ৳ 42.61 and you pay with ৳ 60. How much change do you get?

   Formula:Change Due

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

   View formula →
6. 6.

   Find the perimeter of a rectangle measuring 10 m by 6 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
7. 7.

   Find the mean (average) of these numbers: 69, 46, 53, 64.

   Formula:Arithmetic Mean

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

   View formula →
8. 8.

   Find the perimeter of a rectangle measuring 44 m by 17 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

   View formula →
9. 9.

   Find 3/8 of 40.

   Formula:Fraction of a Quantity

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

   View formula →
10. 10.

    An item costs ৳ 15.94 and you pay with ৳ 20. How much change do you get?

    Formula:Change Due

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

    View formula →
11. 11.

    Convert 9.25 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →
12. 12.

    Find the perimeter of a rectangle measuring 21 m by 16 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
13. 13.

    Calculate 72 ÷ 3.

    Formula:Division

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

    View formula →
14. 14.

    One item costs ৳ 14.96. Find the total cost of 10 items.

    Formula:Total Cost

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

    View formula →
15. 15.

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

    Formula:Area of a Square

    $A = s^2$

    View formula →
16. 16.

    What is 10 × 10?

    Formula:Multiplication (Times Tables)

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

    View formula →
17. 17.

    24 sweets are shared equally among 4 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

    View formula →
18. 18.

    An item costs ৳ 32.54 and you pay with ৳ 50. How much change do you get?

    Formula:Change Due

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

    View formula →
19. 19.

    Find the mean (average) of these numbers: 70, 69, 39, 82, 88.

    Formula:Arithmetic Mean

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

    View formula →
20. 20.

    What is 2 × 3?

    Formula:Multiplication (Times Tables)

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

    View formula →

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