Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 290 · 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 60²? =
2. 2.What is ∛8? =
3. 3.What is the smallest whole number by which 8 must be multiplied to get a perfect square?
4. 4.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹14900 at 10% per year for 2 years (in ₹)?
6. 6.What is the value of 10³ × 10⁻⁴? =
7. 7.What is the smallest whole number by which 20 must be multiplied to get a perfect square?
8. 8.What is the smallest whole number by which 27 must be multiplied to get a perfect square?
9. 9.Find the compound interest on ₹6400 at 25% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
11. 11.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
12. 12.What is the value of 5⁻⁴ (as a fraction)? =
13. 13.What is the smallest whole number by which 200 must be divided to get a perfect cube?
14. 14.How many whole numbers lie between 19² and 20²?
15. 15.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
16. 16.Use (a − b)² = a² − 2ab + b² to find 67².
17. 17.Use a² − b² = (a + b)(a − b) to find 86² − 25².
18. 18.What is the smallest whole number by which 7 must be divided to get a perfect cube?
19. 19.Which of these is a perfect cube? (a) 1842 (b) 1748 (c) 1728
20. 20.What is the value of 9⁴? =
21. 21.Solve: 5(p − 3) = 4p + 13. What is p?
22. 22.The sum of four consecutive whole numbers is 230. What is the smallest of them?
23. 23.Find the compound interest on ₹16000 at 5% per year for 2 years, compounded every year (in ₹).
24. 24.The total surface area of a cube is 1734 square cm. How long is each edge (in cm)?
25. 25.What is 17³? =
26. 26.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹18000 at 25% per year for 1 year, compounded every year (in ₹).
29. 29.The diagonals of a rhombus are 26 cm and 16 cm. What is its area (in square cm)?
30. 30.Write 3.1 × 10⁻² as a decimal. =
31. 31.A room is 9 m long, 4 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 42².
33. 33.What is the value of 2³ × 2⁻³? =
34. 34.Find the compound interest on ₹1600 at 25% per year for 3 years, compounded every year (in ₹).
35. 35.The diagonals of a rhombus are 24 cm and 13 cm. What is its area (in square cm)?
36. 36.What is 38²? =
37. 37.What is 93²? =
38. 38.A cuboid is 3 cm long, 2 cm wide and 7 cm high. What is its total surface area (in square cm)?
39. 39.Find the compound interest on ₹9700 at 20% per year for 2 years, compounded every year (in ₹).
40. 40.A father is 14 years older than his son. In 5 years, the father will be three times as old as his son. How old is the son now?

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