← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 528 · 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.The total surface area of a cube is 1734 square cm. How long is each edge (in cm)?
  3. 3.The sum of three consecutive whole numbers is 27. What is the largest of them?
  4. 4.A trapezium has an area of 184 square cm. Its parallel sides are 10 cm and 13 cm. What is the distance between them (in cm)?
  5. 5.Solve: 3(n − 3) = n + 1. What is n?
  6. 6.Write 8,40,000 in standard form as 8.4 × 10ⁿ. What is n?
  7. 7.A cuboid is 13 cm long, 10 cm wide and 5 cm high. What is its total surface area (in square cm)?
  8. 8.What is the smallest whole number by which 108 must be multiplied to get a perfect cube?
  9. 9.A cuboid is 10 cm long, 5 cm wide and 2 cm high. What is its total surface area (in square cm)?
  10. 10.Which of these is a perfect square? (a) 1368 (b) 1345 (c) 1296
  11. 11.Solve: 5(m − 4) = 2m + 16. What is m?
  12. 12.Each edge of a cube is 20 cm. What is its total surface area (in square cm)?
  13. 13.7.9 × 10³ =
  14. 14.The diagonals of a rhombus are 28 cm and 20 cm. What is its area (in square cm)?
  15. 15.Which of these is a perfect square? (a) 423 (b) 404 (c) 400
  16. 16.Write 5⁴ × 5⁵ as a single power 5ⁿ. What is n?
  17. 17.Solve: 3(t − 5) = 2t + 4. What is t?
  18. 18.What is ∛125? =
  19. 19.A trapezium has an area of 126 square cm. Its parallel sides are 17 cm and 4 cm. What is the distance between them (in cm)?
  20. 20.A big cube of edge 6 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  21. 21.What is √4489? =
  22. 22.What is 25²? =
  23. 23.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
  24. 24.What is 46²? =
  25. 25.Solve: 8t + 6 = 6t + 26. What is t?
  26. 26.Use (a − b)² = a² − 2ab + b² to find 34².
  27. 27.What is ∛8000? =
  28. 28.Which of these is a perfect cube? (a) 127 (b) 125 (c) 193
  29. 29.Use a² − b² = (a + b)(a − b) to find 22² − 16².
  30. 30.If a − b = 1 and ab = 12, what is a² + b²?
  31. 31.A square garden has an area of 784 square m. How long is each side (in m)?
  32. 32.A father is 10 years older than his son. In 6 years, the father will be twice as old as his son. How old is the son now?
  33. 33.What is the smallest whole number by which 675 must be divided to get a perfect cube?
  34. 34.How many whole numbers lie between 12² and 13²?
  35. 35.4.7 × 10⁵ =
  36. 36.Solve: t/6 + t/2 = 24. What is t?
  37. 37.What is ∛4913? =
  38. 38.The length of a rectangle is 7 cm more than its width. Its perimeter is 94 cm. What is its width (in cm)?
  39. 39.What is √8100? =
  40. 40.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?

Answer key

  1. 5
  2. 17
  3. 10
  4. 16
  5. 5
  6. 5
  7. 490
  8. 2
  9. 160
  10. 1296
  11. 12
  12. 2400
  13. 7900
  14. 280
  15. 400
  16. 9
  17. 19
  18. 5
  19. 12
  20. 27
  21. 67
  22. 625
  23. 24334
  24. 2116
  25. 10
  26. 1156
  27. 20
  28. 125
  29. 228
  30. 25
  31. 28
  32. 4
  33. 25
  34. 24
  35. 470000
  36. 36
  37. 17
  38. 20
  39. 90
  40. 112

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