Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 901 · 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 scooter is worth ₹29100. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
2. 2.A cuboid is 6 cm long, 8 cm wide and 3 cm high. What is its total surface area (in square cm)?
3. 3.Solve: 6x + 1 = x + 61. What is x?
4. 4.The diagonals of a rhombus are 26 cm and 10 cm. What is its area (in square cm)?
5. 5.Which of these is a perfect square? (a) 419 (b) 400 (c) 430
6. 6.What is the value of 6³? =
7. 7.Write 7.3 × 10⁻⁴ as a decimal. =
8. 8.What is the sum of the first 8 odd numbers (1 + 3 + 5 + …)?
9. 9.What is √2500? =
10. 10.Write 7.4 × 10⁻⁴ as a decimal. =
11. 11.What is the smallest whole number by which 128 must be divided to get a perfect square?
12. 12.7.3 × 10⁴ =
13. 13.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
14. 14.What is √4624? =
15. 15.What is the difference between the compound interest and the simple interest on ₹31600 at 5% per year for 2 years (in ₹)?
16. 16.A trapezium has an area of 78 square cm. Its parallel sides are 4 cm and 9 cm. What is the distance between them (in cm)?
17. 17.What is the smallest whole number by which 3 must be multiplied to get a perfect cube?
18. 18.Write 6⁹ ÷ 6⁴ as a single power 6ⁿ. What is n?
19. 19.Find the compound interest on ₹54200 at 12% per year for 1 year, compounded every year (in ₹).
20. 20.A father is 21 years older than his son. In 5 years, the father will be four times as old as his son. How old is the son now?
21. 21.A square garden has an area of 2025 square m. How long is each side (in m)?
22. 22.A town has 32500 people. The population grows by 12% every year. What will the population be after 2 years?
23. 23.A trapezium has parallel sides of 26 cm and 7 cm, and the distance between them is 10 cm. What is its area (in square cm)?
24. 24.3.6 × 10⁶ =
25. 25.A scooter is worth ₹40700. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
26. 26.A trapezium has an area of 160 square cm. Its parallel sides are 25 cm and 7 cm. What is the distance between them (in cm)?
27. 27.What is the smallest whole number by which 625 must be multiplied to get a perfect cube?
28. 28.A big cube of edge 8 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
29. 29.A square garden has an area of 1444 square m. How long is each side (in m)?
30. 30.Solve: n/5 + n/2 = 14. What is n?
31. 31.What is the smallest whole number by which 448 must be divided to get a perfect cube?
32. 32.Use (a + b)(a − b) = a² − b² to find 21 × 19.
33. 33.What is √2704? =
34. 34.What is the difference between the compound interest and the simple interest on ₹11900 at 20% per year for 2 years (in ₹)?
35. 35.What is the value of 2⁻⁵ (as a fraction)? =
36. 36.Solve: t/6 + t/4 = 5. What is t?
37. 37.The diagonals of a rhombus are 8 cm and 9 cm. What is its area (in square cm)?
38. 38.Each edge of a cube is 18 cm. What is its total surface area (in square cm)?
39. 39.Solve: 6(p − 5) = p + 5. What is p?
40. 40.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)?

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