Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 616 · 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.A cuboid is 3 cm long, 10 cm wide and 9 cm high. What is its total surface area (in square cm)?
2. 2.What is the smallest whole number by which 375 must be multiplied to get a perfect square?
3. 3.Find the compound interest on ₹56400 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.A trapezium has parallel sides of 24 cm and 21 cm, and the distance between them is 8 cm. What is its area (in square cm)?
5. 5.Solve: m/6 + m/3 = 21. What is m?
6. 6.What is ∛13824? =
7. 7.Find the compound interest on ₹34400 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.How many whole numbers lie between 25² and 26²?
9. 9.A square garden has an area of 49 square m. How long is each side (in m)?
10. 10.Use (a + b)² = a² + 2ab + b² to find 49².
11. 11.A big cube of edge 24 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
12. 12.A cuboid is 11 cm long, 11 cm wide and 6 cm high. What is its total surface area (in square cm)?
13. 13.Use (a + b)(a − b) = a² − b² to find 32 × 28.
14. 14.Solve: 5(t − 3) = t + 5. What is t?
15. 15.Use (a + b)(a − b) = a² − b² to find 27 × 13.
16. 16.Write 2.2 × 10⁻⁴ as a decimal. =
17. 17.What is the value of 4³? =
18. 18.Write (9⁷)⁷ as a single power 9ⁿ. What is n?
19. 19.A cuboid is 5 cm long, 11 cm wide and 7 cm high. What is its total surface area (in square cm)?
20. 20.What is the sum of the first 22 odd numbers (1 + 3 + 5 + …)?
21. 21.The total surface area of a cube is 216 square cm. How long is each edge (in cm)?
22. 22.What is the value of 4⁻¹ (as a fraction)? =
23. 23.A room is 11 m long, 9 m wide and 5 m high. What is the area of its four walls (in square m)?
24. 24.A trapezium has an area of 186 square cm. Its parallel sides are 26 cm and 5 cm. What is the distance between them (in cm)?
25. 25.Write 3.8 × 10⁻³ as a decimal. =
26. 26.Solve: 5x + 5 = x + 53. What is x?
27. 27.A big cube of edge 16 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
28. 28.A trapezium has parallel sides of 28 cm and 13 cm, and the distance between them is 6 cm. What is its area (in square cm)?
29. 29.The length of a rectangle is 5 cm more than its width. Its perimeter is 106 cm. What is its width (in cm)?
30. 30.Solve: 7t + 14 = 2t + 74. What is t?
31. 31.What is the difference between the compound interest and the simple interest on ₹4400 at 15% per year for 2 years (in ₹)?
32. 32.Use (a + b)² = a² + 2ab + b² to find 32².
33. 33.Which of these is a perfect cube? (a) 216 (b) 260 (c) 229
34. 34.The total surface area of a cube is 54 square cm. How long is each edge (in cm)?
35. 35.Solve: x/2 + x/6 = 28. What is x?
36. 36.A square garden has an area of 196 square m. How long is each side (in m)?
37. 37.What is the value of 5⁶? =
38. 38.Each edge of a cube is 8 cm. What is its total surface area (in square cm)?
39. 39.A scooter is worth ₹27500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
40. 40.What is the value of 2³? =

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