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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 93 · 40 sums
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.What is the value of 7⁻² (as a fraction)? =
  2. 2.A big cube of edge 6 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  3. 3.A trapezium has parallel sides of 15 cm and 3 cm, and the distance between them is 20 cm. What is its area (in square cm)?
  4. 4.What is the difference between the compound interest and the simple interest on ₹14400 at 15% per year for 2 years (in ₹)?
  5. 5.A father is 42 years older than his son. In 7 years, the father will be four times as old as his son. How old is the son now?
  6. 6.A big cube of edge 4 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  7. 7.Solve: 6x + 11 = 4x + 15. What is x?
  8. 8.Which of these is a perfect square? (a) 1139 (b) 1127 (c) 1089
  9. 9.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
  10. 10.Write 4.7 × 10⁻³ as a decimal. =
  11. 11.What is 85²? =
  12. 12.Each edge of a cube is 13 cm. What is its total surface area (in square cm)?
  13. 13.What is the value of 10¹ × 10⁻³? =
  14. 14.What is √4096? =
  15. 15.How many whole numbers lie between 28² and 29²?
  16. 16.The diagonals of a rhombus are 10 cm and 12 cm. What is its area (in square cm)?
  17. 17.What is the smallest whole number by which 864 must be multiplied to get a perfect cube?
  18. 18.Solve: 5p + 8 = 3p + 14. What is p?
  19. 19.How many whole numbers lie between 30² and 31²?
  20. 20.What is the sum of the first 8 odd numbers (1 + 3 + 5 + …)?
  21. 21.Find the compound interest on ₹45900 at 25% per year for 1 year, compounded every year (in ₹).
  22. 22.What is the smallest whole number by which 16 must be divided to get a perfect cube?
  23. 23.What is the smallest whole number by which 250 must be divided to get a perfect cube?
  24. 24.Which of these is a perfect square? (a) 361 (b) 376 (c) 364
  25. 25.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
  26. 26.What is the value of 5⁵? =
  27. 27.A father is 30 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?
  28. 28.8 × 10⁶ =
  29. 29.If a + b = 12 and ab = 11, what is a² + b²?
  30. 30.What is the smallest whole number by which 40 must be multiplied to get a perfect square?
  31. 31.A big cube of edge 8 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  32. 32.Which of these is a perfect cube? (a) 3033 (b) 2744 (c) 2988
  33. 33.Solve: 6(m − 4) = 2m + 28. What is m?
  34. 34.The diagonals of a rhombus are 12 cm and 7 cm. What is its area (in square cm)?
  35. 35.A square garden has an area of 100 square m. How long is each side (in m)?
  36. 36.Which of these is a perfect cube? (a) 3375 (b) 3642 (c) 3510
  37. 37.What is the value of 2⁻⁹ (as a fraction)? =
  38. 38.What is the smallest whole number by which 81 must be multiplied to get a perfect cube?
  39. 39.How many whole numbers lie between 9² and 10²?
  40. 40.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).

Answer key

  1. 1/49
  2. 216
  3. 180
  4. 324
  5. 7
  6. 8
  7. 2
  8. 1089
  9. 9826
  10. 0.0047
  11. 7225
  12. 1014
  13. 1/100
  14. 64
  15. 56
  16. 60
  17. 2
  18. 3
  19. 60
  20. 64
  21. 11475
  22. 2
  23. 2
  24. 361
  25. 4080
  26. 3125
  27. 10
  28. 8000000
  29. 122
  30. 10
  31. 8
  32. 2744
  33. 13
  34. 42
  35. 10
  36. 3375
  37. 1/512
  38. 9
  39. 18
  40. 3783

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