Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 751 · 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 2.2 × 10⁻¹ as a decimal. =
2. 2.What amount will ₹32500 grow to in 2 years at 10% per year compound interest (in ₹)?
3. 3.Use (a − b)² = a² − 2ab + b² to find 28².
4. 4.A trapezium has parallel sides of 13 cm and 23 cm, and the distance between them is 3 cm. What is its area (in square cm)?
5. 5.A room is 3 m long, 4 m wide and 3 m high. What is the area of its four walls (in square m)?
6. 6.A square garden has an area of 841 square m. How long is each side (in m)?
7. 7.If a + b = 3 and ab = 2, what is a² + b²?
8. 8.A square garden has an area of 3481 square m. How long is each side (in m)?
9. 9.What is the value of (1/2)⁻¹? =
10. 10.Write 76,000 in standard form as 7.6 × 10ⁿ. What is n?
11. 11.Solve: 6(t − 5) = 2t + 34. What is t?
12. 12.Find the value of x² − 2xy + y² when x = 13 and y = 7.
13. 13.Use a² − b² = (a + b)(a − b) to find 93² − 54².
14. 14.A cuboid is 8 cm long, 12 cm wide and 7 cm high. What is its total surface area (in square cm)?
15. 15.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
16. 16.Solve: x/4 + x/6 = 30. What is x?
17. 17.What is 88²? =
18. 18.What is 62²? =
19. 19.Write (6⁴)⁷ as a single power 6ⁿ. What is n?
20. 20.Write 2.4 × 10⁻¹ as a decimal. =
21. 21.How many whole numbers lie between 48² and 49²?
22. 22.Use (a + b)² = a² + 2ab + b² to find 73².
23. 23.What is √625? =
24. 24.A big cube of edge 8 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
25. 25.A cuboid is 4 cm long, 7 cm wide and 3 cm high. What is its total surface area (in square cm)?
26. 26.What is ∛512? =
27. 27.Find the compound interest on ₹15500 at 20% per year for 3 years, compounded every year (in ₹).
28. 28.How many whole numbers lie between 32² and 33²?
29. 29.A cuboid is 8 cm long, 10 cm wide and 2 cm high. What is its total surface area (in square cm)?
30. 30.What is 25²? =
31. 31.A room is 9 m long, 8 m wide and 5 m high. What is the area of its four walls (in square m)?
32. 32.Use (a − b)² = a² − 2ab + b² to find 35².
33. 33.What amount will ₹6400 grow to in 2 years at 20% per year compound interest (in ₹)?
34. 34.Which of these is a perfect cube? (a) 33 (b) 53 (c) 27
35. 35.Find the compound interest on ₹7100 at 20% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹15200 at 25% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹53000 at 4% per year for 1 year, compounded every year (in ₹).
38. 38.Find the value of x² − y² when x = 3 and y = 1.
39. 39.Use (a + b)² = a² + 2ab + b² to find 33².
40. 40.What is √144? =

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