Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 584 · 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.What amount will ₹7800 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.A trapezium has parallel sides of 24 cm and 5 cm, and the distance between them is 18 cm. What is its area (in square cm)?
3. 3.5.8 × 10² =
4. 4.The sum of two consecutive whole numbers is 45. What is the largest of them?
5. 5.A cube has a volume of 216 cubic cm. How long is each edge (in cm)?
6. 6.Find the compound interest on ₹13700 at 10% per year for 2 years, compounded every year (in ₹).
7. 7.A scooter is worth ₹46900. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
8. 8.Each edge of a cube is 16 cm. What is its total surface area (in square cm)?
9. 9.What is the value of 2⁶ × 2⁻⁵? =
10. 10.What is the value of 2⁵ × 2⁻¹? =
11. 11.Which of these is a perfect cube? (a) 2841 (b) 2861 (c) 2744
12. 12.What is the smallest whole number by which 81 must be divided to get a perfect cube?
13. 13.5.6 × 10⁷ =
14. 14.A town has 37800 people. The population grows by 12% every year. What will the population be after 1 year?
15. 15.4 × 10⁵ =
16. 16.Write 7.7 × 10⁻¹ as a decimal. =
17. 17.Solve: 8t + 12 = 5t + 54. What is t?
18. 18.Find the compound interest on ₹55800 at 12% per year for 1 year, compounded every year (in ₹).
19. 19.Find the value of x² + 2xy + y² when x = 6 and y = 5.
20. 20.Which of these is a perfect cube? (a) 3978 (b) 3655 (c) 3375
21. 21.What is 17³? =
22. 22.What is ∛5832? =
23. 23.Solve: 4(t − 3) = 2t + 22. What is t?
24. 24.Which of these is a perfect square? (a) 1444 (b) 1498 (c) 1446
25. 25.Write 3.7 × 10⁻¹ as a decimal. =
26. 26.The total surface area of a cube is 1734 square cm. How long is each edge (in cm)?
27. 27.What is the value of 10⁴? =
28. 28.What is ∛125? =
29. 29.Use (a + b)(a − b) = a² − b² to find 79 × 61.
30. 30.A trapezium has an area of 306 square cm. Its parallel sides are 20 cm and 14 cm. What is the distance between them (in cm)?
31. 31.Find the compound interest on ₹55000 at 4% per year for 2 years, compounded every year (in ₹).
32. 32.The sum of four consecutive whole numbers is 206. What is the largest of them?
33. 33.Solve: 6y + 18 = 2y + 38. What is y?
34. 34.A square garden has an area of 3364 square m. How long is each side (in m)?
35. 35.What is the difference between the compound interest and the simple interest on ₹22400 at 20% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹46000 at 15% per year for 2 years (in ₹)?
37. 37.A cuboid is 10 cm long, 4 cm wide and 3 cm high. What is its total surface area (in square cm)?
38. 38.Use (a + b)² = a² + 2ab + b² to find 16².
39. 39.A cube has a volume of 4096 cubic cm. How long is each edge (in cm)?
40. 40.What is the smallest whole number by which 875 must be multiplied to get a perfect cube?

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