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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 356 · 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 difference between the compound interest and the simple interest on ₹15000 at 10% per year for 2 years (in ₹)?
  2. 2.What is the difference between the compound interest and the simple interest on ₹36400 at 15% per year for 2 years (in ₹)?
  3. 3.What is ∛64? =
  4. 4.A cube has a volume of 5832 cubic cm. How long is each edge (in cm)?
  5. 5.Solve: n/5 + n/4 = 72. What is n?
  6. 6.What is the sum of the first 30 odd numbers (1 + 3 + 5 + …)?
  7. 7.What is the value of 5³ × 5⁻⁴? =
  8. 8.What is the sum of the first 6 odd numbers (1 + 3 + 5 + …)?
  9. 9.Use (a + b)² = a² + 2ab + b² to find 79².
  10. 10.A room is 5 m long, 4 m wide and 4 m high. What is the area of its four walls (in square m)?
  11. 11.Solve: 3p + 7 = p + 11. What is p?
  12. 12.What is the value of 6⁴? =
  13. 13.Find the compound interest on ₹53600 at 25% per year for 2 years, compounded every year (in ₹).
  14. 14.Write 8.8 × 10⁻¹ as a decimal. =
  15. 15.Find the compound interest on ₹17400 at 20% per year for 1 year, compounded every year (in ₹).
  16. 16.A scooter is worth ₹24000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
  17. 17.What is 26²? =
  18. 18.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  19. 19.Which of these is a perfect square? (a) 909 (b) 954 (c) 900
  20. 20.Find the compound interest on ₹55000 at 10% per year for 3 years, compounded every year (in ₹).
  21. 21.The diagonals of a rhombus are 4 cm and 11 cm. What is its area (in square cm)?
  22. 22.A cuboid is 11 cm long, 6 cm wide and 3 cm high. What is its total surface area (in square cm)?
  23. 23.What is 76²? =
  24. 24.Which of these is a perfect cube? (a) 162 (b) 125 (c) 151
  25. 25.Use (a − b)² = a² − 2ab + b² to find 42².
  26. 26.The sum of two consecutive whole numbers is 111. What is the largest of them?
  27. 27.Write 4.2 × 10⁻² as a decimal. =
  28. 28.How many whole numbers lie between 32² and 33²?
  29. 29.Find the value of x² − y² when x = 9 and y = 7.
  30. 30.What is the smallest whole number by which 1125 must be multiplied to get a perfect cube?
  31. 31.Write 4⁸ ÷ 4⁶ as a single power 4ⁿ. What is n?
  32. 32.Use (a + b)(a − b) = a² − b² to find 105 × 95.
  33. 33.What is 15³? =
  34. 34.What is the value of 4⁵? =
  35. 35.Each edge of a cube is 15 cm. What is its total surface area (in square cm)?
  36. 36.Solve: 8p + 12 = 4p + 72. What is p?
  37. 37.Use (a − b)² = a² − 2ab + b² to find 69².
  38. 38.Which of these is a perfect square? (a) 235 (b) 227 (c) 225
  39. 39.A father is 15 years older than his son. In 4 years, the father will be twice as old as his son. How old is the son now?
  40. 40.What is the value of 10²? =

Answer key

  1. 150
  2. 819
  3. 4
  4. 18
  5. 160
  6. 900
  7. 1/5
  8. 36
  9. 6241
  10. 72
  11. 2
  12. 1296
  13. 30150
  14. 0.88
  15. 3480
  16. 14739
  17. 676
  18. 8
  19. 900
  20. 18205
  21. 22
  22. 234
  23. 5776
  24. 125
  25. 1764
  26. 56
  27. 0.042
  28. 64
  29. 32
  30. 3
  31. 2
  32. 9975
  33. 3375
  34. 1024
  35. 1350
  36. 15
  37. 4761
  38. 225
  39. 11
  40. 100

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