← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 380 · 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.The total surface area of a cube is 150 square cm. How long is each edge (in cm)?
  2. 2.What is √6889? =
  3. 3.What is the value of (3/7)⁻¹? =
  4. 4.A father is 12 years older than his son. In 3 years, the father will be three times as old as his son. How old is the son now?
  5. 5.A square garden has an area of 289 square m. How long is each side (in m)?
  6. 6.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
  7. 7.Find the compound interest on ₹46800 at 12% per year for 1 year, compounded every year (in ₹).
  8. 8.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
  9. 9.The diagonals of a rhombus are 18 cm and 9 cm. What is its area (in square cm)?
  10. 10.Write 7.6 × 10⁻¹ as a decimal. =
  11. 11.Solve: 5(x − 4) = x + 48. What is x?
  12. 12.What is ∛8? =
  13. 13.What is the difference between the compound interest and the simple interest on ₹36100 at 10% per year for 2 years (in ₹)?
  14. 14.What is the sum of the first 13 odd numbers (1 + 3 + 5 + …)?
  15. 15.The length of a rectangle is 2 cm more than its width. Its perimeter is 28 cm. What is its width (in cm)?
  16. 16.The sum of two consecutive whole numbers is 63. What is the smallest of them?
  17. 17.Use (a + b)(a − b) = a² − b² to find 109 × 91.
  18. 18.If a + b = 15 and ab = 36, what is a² + b²?
  19. 19.A scooter is worth ₹30100. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
  20. 20.What is the value of (2/9)⁻¹? =
  21. 21.The length of a rectangle is 2 cm more than its width. Its perimeter is 124 cm. What is its width (in cm)?
  22. 22.Solve: 4(n − 4) = n + 5. What is n?
  23. 23.Use (a + b)² = a² + 2ab + b² to find 84².
  24. 24.What amount will ₹15000 grow to in 1 year at 12% per year compound interest (in ₹)?
  25. 25.A cuboid is 5 cm long, 2 cm wide and 5 cm high. What is its total surface area (in square cm)?
  26. 26.What is the value of 10⁵ × 10⁻⁶? =
  27. 27.A room is 4 m long, 10 m wide and 4 m high. What is the area of its four walls (in square m)?
  28. 28.What amount will ₹40800 grow to in 1 year at 20% per year compound interest (in ₹)?
  29. 29.Write 5¹⁴ ÷ 5⁵ as a single power 5ⁿ. What is n?
  30. 30.Each edge of a cube is 8 cm. What is its total surface area (in square cm)?
  31. 31.Find the compound interest on ₹13900 at 4% per year for 1 year, compounded every year (in ₹).
  32. 32.A cube has a volume of 27 cubic cm. How long is each edge (in cm)?
  33. 33.Find the compound interest on ₹46000 at 10% per year for 2 years, compounded every year (in ₹).
  34. 34.What amount will ₹44900 grow to in 2 years at 10% per year compound interest (in ₹)?
  35. 35.What is √5184? =
  36. 36.A cube has a volume of 5832 cubic cm. How long is each edge (in cm)?
  37. 37.Use (a + b)² = a² + 2ab + b² to find 18².
  38. 38.Find the value of x² + 2xy + y² when x = 11 and y = 7.
  39. 39.A big cube of edge 18 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  40. 40.What is ∛27? =

Answer key

  1. 5
  2. 83
  3. 7/3
  4. 3
  5. 17
  6. 19
  7. 5616
  8. 6305
  9. 81
  10. 0.76
  11. 17
  12. 2
  13. 361
  14. 169
  15. 6
  16. 31
  17. 9919
  18. 153
  19. 27090
  20. 9/2
  21. 30
  22. 7
  23. 7056
  24. 16800
  25. 90
  26. 1/10
  27. 112
  28. 48960
  29. 9
  30. 384
  31. 556
  32. 3
  33. 9660
  34. 54329
  35. 72
  36. 18
  37. 324
  38. 324
  39. 216
  40. 3

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