← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 999 · 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.A cuboid is 6 cm long, 11 cm wide and 4 cm high. What is its total surface area (in square cm)?
  2. 2.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  3. 3.What is the value of 2⁻⁴ (as a fraction)? =
  4. 4.What is 14³? =
  5. 5.The sum of four consecutive whole numbers is 162. What is the largest of them?
  6. 6.Which of these is a perfect cube? (a) 282 (b) 273 (c) 216
  7. 7.What is the value of 5⁶ × 5⁻¹? =
  8. 8.Find the compound interest on ₹13900 at 4% per year for 1 year, compounded every year (in ₹).
  9. 9.Solve: 4(m − 3) = m + 30. What is m?
  10. 10.What is the value of (4/7)⁻²? =
  11. 11.The diagonals of a rhombus are 30 cm and 8 cm. What is its area (in square cm)?
  12. 12.Write 9⁸ × 9⁶ as a single power 9ⁿ. What is n?
  13. 13.A scooter is worth ₹12100. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
  14. 14.What is √676? =
  15. 15.The total surface area of a cube is 96 square cm. How long is each edge (in cm)?
  16. 16.Use a² − b² = (a + b)(a − b) to find 46² − 38².
  17. 17.Solve: n/5 + n/2 = 14. What is n?
  18. 18.What is the value of 3³ × 3⁻¹? =
  19. 19.What is √1681? =
  20. 20.A cuboid is 11 cm long, 3 cm wide and 8 cm high. What is its total surface area (in square cm)?
  21. 21.What amount will ₹45000 grow to in 2 years at 8% per year compound interest (in ₹)?
  22. 22.What is 12³? =
  23. 23.A cuboid is 11 cm long, 11 cm wide and 2 cm high. What is its total surface area (in square cm)?
  24. 24.A big cube of edge 16 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  25. 25.Use (a + b)² = a² + 2ab + b² to find 105².
  26. 26.What is the difference between the compound interest and the simple interest on ₹22100 at 10% per year for 2 years (in ₹)?
  27. 27.The total surface area of a cube is 1734 square cm. How long is each edge (in cm)?
  28. 28.What is ∛1331? =
  29. 29.3.5 × 10⁴ =
  30. 30.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  31. 31.Solve: 7y + 2 = y + 14. What is y?
  32. 32.Which of these is a perfect cube? (a) 187 (b) 159 (c) 125
  33. 33.What is the value of 2⁶ × 2⁻²? =
  34. 34.Solve: 6x + 5 = 2x + 37. What is x?
  35. 35.Solve: 4(n − 5) = 2n + 6. What is n?
  36. 36.Solve: 4(y − 3) = y + 30. What is y?
  37. 37.What is the smallest whole number by which 832 must be multiplied to get a perfect square?
  38. 38.What is the smallest whole number by which 162 must be multiplied to get a perfect square?
  39. 39.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  40. 40.A father is 20 years older than his son. In 7 years, the father will be three times as old as his son. How old is the son now?

Answer key

  1. 268
  2. 600
  3. 1/16
  4. 2744
  5. 42
  6. 216
  7. 3125
  8. 556
  9. 14
  10. 49/16
  11. 120
  12. 14
  13. 11495
  14. 26
  15. 4
  16. 672
  17. 20
  18. 9
  19. 41
  20. 290
  21. 52488
  22. 1728
  23. 330
  24. 64
  25. 11025
  26. 221
  27. 17
  28. 11
  29. 35000
  30. 27
  31. 2
  32. 125
  33. 16
  34. 8
  35. 13
  36. 14
  37. 13
  38. 2
  39. 7
  40. 3

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets