Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 485 · 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 is 6³? =
2. 2.What is 64²? =
3. 3.Write 4.9 × 10⁻¹ as a decimal. =
4. 4.A father is 36 years older than his son. In 8 years, the father will be four times as old as his son. How old is the son now?
5. 5.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹43500 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.A cuboid is 7 cm long, 9 cm wide and 2 cm high. What is its total surface area (in square cm)?
8. 8.Each edge of a cube is 23 cm. What is its total surface area (in square cm)?
9. 9.A square garden has an area of 3364 square m. How long is each side (in m)?
10. 10.What is the value of 5¹ × 5⁻⁴? =
11. 11.Which of these is a perfect cube? (a) 2810 (b) 2744 (c) 2844
12. 12.Use (a + b)(a − b) = a² − b² to find 67 × 53.
13. 13.What is the difference between the compound interest and the simple interest on ₹59600 at 25% per year for 2 years (in ₹)?
14. 14.Use (a − b)² = a² − 2ab + b² to find 66².
15. 15.What is 75²? =
16. 16.A cuboid is 4 cm long, 2 cm wide and 6 cm high. What is its total surface area (in square cm)?
17. 17.How many whole numbers lie between 11² and 12²?
18. 18.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
19. 19.What is the smallest whole number by which 54 must be divided to get a perfect cube?
20. 20.Solve: y/4 + y/6 = 15. What is y?
21. 21.How many whole numbers lie between 21² and 22²?
22. 22.A square garden has an area of 441 square m. How long is each side (in m)?
23. 23.6.8 × 10⁴ =
24. 24.What is the difference between the compound interest and the simple interest on ₹58400 at 25% per year for 2 years (in ₹)?
25. 25.Write 5.3 × 10⁻⁴ as a decimal. =
26. 26.Solve: 3x + 17 = 2x + 25. What is x?
27. 27.Use (a + b)(a − b) = a² − b² to find 95 × 85.
28. 28.A trapezium has an area of 203 square cm. Its parallel sides are 20 cm and 9 cm. What is the distance between them (in cm)?
29. 29.What is ∛2197? =
30. 30.Write 6.9 × 10⁻⁴ as a decimal. =
31. 31.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
32. 32.Write 1.3 × 10⁻¹ as a decimal. =
33. 33.A father is 18 years older than his son. In 1 year, the father will be four times as old as his son. How old is the son now?
34. 34.What is 2³? =
35. 35.Write 2⁷ × 2⁷ as a single power 2ⁿ. What is n?
36. 36.Write 3⁷ × 3³ as a single power 3ⁿ. What is n?
37. 37.A room is 11 m long, 10 m wide and 3 m high. What is the area of its four walls (in square m)?
38. 38.How many whole numbers lie between 29² and 30²?
39. 39.What is √5625? =
40. 40.Which of these is a perfect square? (a) 1610 (b) 1600 (c) 1639

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