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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 533 · 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 sum of the first 6 odd numbers (1 + 3 + 5 + …)?
  2. 2.What amount will ₹37600 grow to in 1 year at 8% per year compound interest (in ₹)?
  3. 3.Each edge of a cube is 8 cm. What is its total surface area (in square cm)?
  4. 4.A father is 8 years older than his son. In 6 years, the father will be twice as old as his son. How old is the son now?
  5. 5.What is √5625? =
  6. 6.A square garden has an area of 3249 square m. How long is each side (in m)?
  7. 7.What is the value of (3/8)⁻²? =
  8. 8.How many whole numbers lie between 36² and 37²?
  9. 9.What is √676? =
  10. 10.What is √8464? =
  11. 11.How many whole numbers lie between 37² and 38²?
  12. 12.Find the compound interest on ₹17000 at 10% per year for 3 years, compounded every year (in ₹).
  13. 13.If a − b = 2 and ab = 3, what is a² + b²?
  14. 14.The diagonals of a rhombus are 14 cm and 9 cm. What is its area (in square cm)?
  15. 15.What is 4³? =
  16. 16.Which of these is a perfect square? (a) 1346 (b) 1329 (c) 1296
  17. 17.1.4 × 10⁶ =
  18. 18.Which of these is a perfect square? (a) 400 (b) 410 (c) 417
  19. 19.A big cube of edge 24 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  20. 20.A big cube of edge 12 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  21. 21.What is ∛27? =
  22. 22.A scooter is worth ₹37500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
  23. 23.What is the value of 5² × 5⁻¹? =
  24. 24.The sum of three consecutive whole numbers is 162. What is the smallest of them?
  25. 25.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?
  26. 26.What is the smallest whole number by which 126 must be multiplied to get a perfect square?
  27. 27.The length of a rectangle is 3 cm more than its width. Its perimeter is 14 cm. What is its width (in cm)?
  28. 28.What is 19²? =
  29. 29.Use (a + b)² = a² + 2ab + b² to find 21².
  30. 30.Find the compound interest on ₹54300 at 10% per year for 1 year, compounded every year (in ₹).
  31. 31.The diagonals of a rhombus are 6 cm and 9 cm. What is its area (in square cm)?
  32. 32.The length of a rectangle is 6 cm more than its width. Its perimeter is 108 cm. What is its width (in cm)?
  33. 33.What is the value of 2¹ × 2⁻⁵? =
  34. 34.Which of these is a perfect square? (a) 236 (b) 246 (c) 225
  35. 35.What is √9409? =
  36. 36.Which of these is a perfect square? (a) 495 (b) 489 (c) 484
  37. 37.What is the smallest whole number by which 128 must be multiplied to get a perfect square?
  38. 38.A cube has a volume of 27 cubic cm. How long is each edge (in cm)?
  39. 39.Solve: 8x + 19 = x + 117. What is x?
  40. 40.The diagonals of a rhombus are 12 cm and 25 cm. What is its area (in square cm)?

Answer key

  1. 36
  2. 40608
  3. 384
  4. 2
  5. 75
  6. 57
  7. 64/9
  8. 72
  9. 26
  10. 92
  11. 74
  12. 5627
  13. 10
  14. 63
  15. 64
  16. 1296
  17. 1400000
  18. 400
  19. 216
  20. 27
  21. 3
  22. 31740
  23. 5
  24. 53
  25. 51376
  26. 14
  27. 2
  28. 361
  29. 441
  30. 5430
  31. 27
  32. 24
  33. 1/16
  34. 225
  35. 97
  36. 484
  37. 2
  38. 3
  39. 14
  40. 150

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