← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 542 · 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.Find the compound interest on ₹6800 at 15% per year for 2 years, compounded every year (in ₹).
  2. 2.Which of these is a perfect cube? (a) 27 (b) 40 (c) 35
  3. 3.What is 2³? =
  4. 4.What is 15³? =
  5. 5.What is the difference between the compound interest and the simple interest on ₹53000 at 20% per year for 2 years (in ₹)?
  6. 6.Use a² − b² = (a + b)(a − b) to find 28² − 1².
  7. 7.What is the value of 10⁵? =
  8. 8.A room is 9 m long, 3 m wide and 3 m high. What is the area of its four walls (in square m)?
  9. 9.What is the value of 2¹ × 2⁻¹? =
  10. 10.Solve: 4p + 18 = p + 42. What is p?
  11. 11.A father is 57 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?
  12. 12.Write 3.1 × 10⁻¹ as a decimal. =
  13. 13.A scooter is worth ₹37500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
  14. 14.The sum of four consecutive whole numbers is 170. What is the smallest of them?
  15. 15.What is the value of 3⁶ × 3⁻³? =
  16. 16.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
  17. 17.The sum of two consecutive whole numbers is 17. What is the smallest of them?
  18. 18.A room is 6 m long, 7 m wide and 3 m high. What is the area of its four walls (in square m)?
  19. 19.How many whole numbers lie between 49² and 50²?
  20. 20.Write 9.4 × 10⁻¹ as a decimal. =
  21. 21.Solve: x/2 + x/3 = 10. What is x?
  22. 22.7.5 × 10⁵ =
  23. 23.A scooter is worth ₹56000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
  24. 24.Solve: 3t + 12 = t + 38. What is t?
  25. 25.The diagonals of a rhombus are 22 cm and 4 cm. What is its area (in square cm)?
  26. 26.Use (a − b)² = a² − 2ab + b² to find 31².
  27. 27.Write 8⁵ × 8³ as a single power 8ⁿ. What is n?
  28. 28.Find the value of x² − y² when x = 13 and y = 12.
  29. 29.Use (a + b)² = a² + 2ab + b² to find 99².
  30. 30.Use (a − b)² = a² − 2ab + b² to find 14².
  31. 31.Find the value of x² + 2xy + y² when x = 10 and y = 5.
  32. 32.What is 4³? =
  33. 33.Solve: 4(m − 3) = m + 21. What is m?
  34. 34.Solve: 7m + 7 = m + 91. What is m?
  35. 35.Which of these is a perfect square? (a) 380 (b) 361 (c) 367
  36. 36.What is 14²? =
  37. 37.What is the value of 2¹ × 2⁻⁵? =
  38. 38.Which of these is a perfect square? (a) 961 (b) 1007 (c) 977
  39. 39.Which of these is a perfect square? (a) 1444 (b) 1471 (c) 1505
  40. 40.Write 9⁵ × 9⁴ as a single power 9ⁿ. What is n?

Answer key

  1. 2193
  2. 27
  3. 8
  4. 3375
  5. 2120
  6. 783
  7. 100000
  8. 72
  9. 1
  10. 8
  11. 12
  12. 0.31
  13. 31740
  14. 41
  15. 27
  16. 48
  17. 8
  18. 78
  19. 98
  20. 0.94
  21. 12
  22. 750000
  23. 48013
  24. 13
  25. 44
  26. 961
  27. 8
  28. 25
  29. 9801
  30. 196
  31. 225
  32. 64
  33. 11
  34. 14
  35. 361
  36. 196
  37. 1/16
  38. 961
  39. 1444
  40. 9

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