Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 530 · 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 7 cm long, 5 cm wide and 4 cm high. What is its total surface area (in square cm)?
2. 2.Write 1,70,000 in standard form as 1.7 × 10ⁿ. What is n?
3. 3.The sum of two consecutive whole numbers is 93. What is the largest of them?
4. 4.A room is 10 m long, 10 m wide and 3 m high. What is the area of its four walls (in square m)?
5. 5.Find the compound interest on ₹12500 at 4% per year for 2 years, compounded every year (in ₹).
6. 6.Which of these is a perfect square? (a) 610 (b) 618 (c) 576
7. 7.What is the sum of the first 15 odd numbers (1 + 3 + 5 + …)?
8. 8.A scooter is worth ₹24000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
9. 9.Which of these is a perfect square? (a) 1400 (b) 1398 (c) 1369
10. 10.A room is 5 m long, 3 m wide and 5 m high. What is the area of its four walls (in square m)?
11. 11.A room is 11 m long, 5 m wide and 5 m high. What is the area of its four walls (in square m)?
12. 12.What is the smallest whole number by which 8 must be multiplied to get a perfect square?
13. 13.What is the value of 4⁶? =
14. 14.What amount will ₹16000 grow to in 1 year at 5% per year compound interest (in ₹)?
15. 15.A trapezium has parallel sides of 5 cm and 30 cm, and the distance between them is 8 cm. What is its area (in square cm)?
16. 16.The length of a rectangle is 13 cm more than its width. Its perimeter is 138 cm. What is its width (in cm)?
17. 17.How many whole numbers lie between 30² and 31²?
18. 18.A room is 3 m long, 6 m wide and 4 m high. What is the area of its four walls (in square m)?
19. 19.A square garden has an area of 196 square m. How long is each side (in m)?
20. 20.The length of a rectangle is 9 cm more than its width. Its perimeter is 70 cm. What is its width (in cm)?
21. 21.What is the value of (5/8)⁻²? =
22. 22.What is 18³? =
23. 23.Solve: y/2 + y/3 = 20. What is y?
24. 24.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
25. 25.A trapezium has parallel sides of 15 cm and 28 cm, and the distance between them is 4 cm. What is its area (in square cm)?
26. 26.Find the compound interest on ₹28300 at 20% per year for 2 years, compounded every year (in ₹).
27. 27.A trapezium has an area of 20 square cm. Its parallel sides are 6 cm and 14 cm. What is the distance between them (in cm)?
28. 28.Solve: 6(m − 2) = 4m + 4. What is m?
29. 29.A square garden has an area of 225 square m. How long is each side (in m)?
30. 30.Find the compound interest on ₹10000 at 4% per year for 2 years, compounded every year (in ₹).
31. 31.What is the value of (7/9)⁻¹? =
32. 32.Find the value of x² − y² when x = 5 and y = 1.
33. 33.What amount will ₹60000 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.A big cube of edge 8 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
35. 35.Write 32,00,000 in standard form as 3.2 × 10ⁿ. What is n?
36. 36.A square garden has an area of 1225 square m. How long is each side (in m)?
37. 37.Solve: p/3 + p/4 = 21. What is p?
38. 38.What is the value of 2⁵? =
39. 39.What is the smallest whole number by which 192 must be multiplied to get a perfect square?
40. 40.A cube has a volume of 2744 cubic cm. How long is each edge (in cm)?

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