Grade 8 Mathematics practice

What is on the worksheet

1. 9/6 × 7/10 = ?

2. 4/18 × 8/18 = ?

3. Split 162 in the ratio 10:8. What is the first share?

4. A triangle has base 36 cm and perpendicular height 20 cm. Find its area in cm².

5. A cylinder has radius 4 cm and height 34 cm. Its volume is kπ cm³. Find k.

6. 62 + 16 × 4 = ?

7. |-191| = ?

8. (43) − (-65) = ?

9. 71 + 17 × 10 = ?

10. Find the volume of a cuboid measuring 12 cm × 16 cm × 6 cm, in cm³.

11. f(x) = 12x + (-4). Find f⁻¹(-4).

12. Solve for x: 20x + 50 = 810

13. Find n: 16^2 × 16^6 = 16^n.

14. f(x) = 13x + (9). Find f⁻¹(9).

15. A quantity starts at 6600, increases by 25%, then decreases by 25%. Find the final quantity.

16. Reflect (10, 8) in x = 10. What is the new x-coordinate?

17. Find only the x-coordinate of the midpoint of (13, -16) and (-4, 12).

18. Find the slope through (-6, 5) and (-5, 3).

19. Evaluate 5x + 19 when x = 13.

20. Find n: 13^4 × 13^9 = 13^n.