Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 260 · 40 sums

The method (Read, plan, check): Find the type of question first: power, square or cube, equation, identity, area or interest? Use the method from that lesson, step by step. Check: square or cube your root back, put equation answers back in, and work interest year by year.

1. 1.Write (6⁴)³ as a single power 6ⁿ. What is n?
2. 2.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
3. 3.A cube has a volume of 64 cubic cm. How long is each edge (in cm)?
4. 4.The sum of four consecutive whole numbers is 142. What is the smallest of them?
5. 5.Find the compound interest on ₹9300 at 8% per year for 1 year, compounded every year (in ₹).
6. 6.Which of these is a perfect square? (a) 529 (b) 565 (c) 545
7. 7.A scooter is worth ₹51900. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
8. 8.What is the sum of the first 11 odd numbers (1 + 3 + 5 + …)?
9. 9.Which of these is a perfect square? (a) 818 (b) 787 (c) 784
10. 10.Write 7.1 × 10⁻³ as a decimal. =
11. 11.What is the difference between the compound interest and the simple interest on ₹53500 at 20% per year for 2 years (in ₹)?
12. 12.Solve: t/3 + t/5 = 56. What is t?
13. 13.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
14. 14.Which of these is a perfect cube? (a) 1929 (b) 1776 (c) 1728
15. 15.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
16. 16.What is √289? =
17. 17.What is 37²? =
18. 18.A town has 22600 people. The population grows by 10% every year. What will the population be after 1 year?
19. 19.A big cube of edge 6 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
20. 20.Write 3,10,000 in standard form as 3.1 × 10ⁿ. What is n?
21. 21.What is 56²? =
22. 22.Write 2.1 × 10⁻³ as a decimal. =
23. 23.Solve: 7y + 10 = 2y + 80. What is y?
24. 24.What is the sum of the first 24 odd numbers (1 + 3 + 5 + …)?
25. 25.What is the difference between the compound interest and the simple interest on ₹58400 at 25% per year for 2 years (in ₹)?
26. 26.What is 7³? =
27. 27.Which of these is a perfect cube? (a) 284 (b) 303 (c) 216
28. 28.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
29. 29.A cuboid is 4 cm long, 12 cm wide and 5 cm high. What is its total surface area (in square cm)?
30. 30.What is the value of 5⁶ × 5⁻³? =
31. 31.A father is 14 years older than his son. In 5 years, the father will be three times as old as his son. How old is the son now?
32. 32.What amount will ₹50000 grow to in 2 years at 25% per year compound interest (in ₹)?
33. 33.Which of these is a perfect square? (a) 182 (b) 169 (c) 178
34. 34.Solve: x/3 + x/5 = 16. What is x?
35. 35.What is the sum of the first 13 odd numbers (1 + 3 + 5 + …)?
36. 36.The length of a rectangle is 10 cm more than its width. Its perimeter is 64 cm. What is its width (in cm)?
37. 37.What is the value of 5⁵ × 5⁻²? =
38. 38.A room is 11 m long, 5 m wide and 4 m high. What is the area of its four walls (in square m)?
39. 39.What amount will ₹27300 grow to in 1 year at 12% per year compound interest (in ₹)?
40. 40.Solve: 5(t − 1) = 3t + 11. What is t?

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