Chile · Grado 4 · Practice Sheet 49

1. 1.

   Find the mean (average) of these numbers: 48, 73, 76, 68.

   Formula:Arithmetic Mean

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

   View formula →
2. 2.

   Find the area of a square with side length 18 cm.

   Formula:Area of a Square

   $A = s^2$

   View formula →
3. 3.

   Calculate 67 × 10.

   Formula:Multiplication

   $p = a \times b$

   View formula →
4. 4.

   An item costs $21.45 and you pay with $30. How much change do you get?

   Formula:Change Due

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

   View formula →
5. 5.

   Calculate 72 ÷ 8.

   Formula:Division

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

   View formula →
6. 6.

   Find the area of a square with side length 24 cm.

   Formula:Area of a Square

   $A = s^2$

   View formula →
7. 7.

   Find the mean (average) of these numbers: 99, 23, 24, 97, 93, 43.

   Formula:Arithmetic Mean

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

   View formula →
8. 8.

   One item costs $4.06. Find the total cost of 7 items.

   Formula:Total Cost

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

   View formula →
9. 9.

   Calculate 256 ÷ 8.

   Formula:Division

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

   View formula →
10. 10.

    Find 4/8 of 88.

    Formula:Fraction of a Quantity

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

    View formula →
11. 11.

    Find the perimeter of a rectangle measuring 12 m by 18 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
12. 12.

    Find the mean (average) of these numbers: 94, 55, 95, 41, 58.

    Formula:Arithmetic Mean

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

    View formula →
13. 13.

    Calculate 40 ÷ 5.

    Formula:Division

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

    View formula →
14. 14.

    Find the area of a square with side length 22 cm.

    Formula:Area of a Square

    $A = s^2$

    View formula →
15. 15.

    Find the mean (average) of these numbers: 67, 91, 63, 95.

    Formula:Arithmetic Mean

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

    View formula →
16. 16.

    Find 4/5 of 70.

    Formula:Fraction of a Quantity

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

    View formula →
17. 17.

    An item costs $42.59 and you pay with $50. How much change do you get?

    Formula:Change Due

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

    View formula →
18. 18.

    Find the perimeter of a rectangle measuring 5 m by 6 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

    View formula →
19. 19.

    An item costs $14.68 and you pay with $30. How much change do you get?

    Formula:Change Due

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

    View formula →
20. 20.

    Convert 7.95 kilometres into metres.

    Formula:Metric Length Conversion

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

    View formula →

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