← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 121 · 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 amount will ₹36400 grow to in 2 years at 10% per year compound interest (in ₹)?
  2. 2.Solve: 8m + 13 = m + 34. What is m?
  3. 3.Write 7.7 × 10⁻¹ as a decimal. =
  4. 4.A trapezium has parallel sides of 8 cm and 20 cm, and the distance between them is 14 cm. What is its area (in square cm)?
  5. 5.Each edge of a cube is 10 cm. What is its total surface area (in square cm)?
  6. 6.What is the value of (7/8)⁻²? =
  7. 7.Find the compound interest on ₹53200 at 15% per year for 2 years, compounded every year (in ₹).
  8. 8.The sum of four consecutive whole numbers is 142. What is the largest of them?
  9. 9.The length of a rectangle is 13 cm more than its width. Its perimeter is 98 cm. What is its width (in cm)?
  10. 10.Find the compound interest on ₹14400 at 25% per year for 3 years, compounded every year (in ₹).
  11. 11.Write 8.7 × 10⁻³ as a decimal. =
  12. 12.What is √7056? =
  13. 13.How many whole numbers lie between 11² and 12²?
  14. 14.What is √5329? =
  15. 15.Write 8⁴ ÷ 8² as a single power 8ⁿ. What is n?
  16. 16.Write 2¹⁰ ÷ 2⁷ as a single power 2ⁿ. What is n?
  17. 17.The diagonals of a rhombus are 14 cm and 19 cm. What is its area (in square cm)?
  18. 18.The total surface area of a cube is 1536 square cm. How long is each edge (in cm)?
  19. 19.What is ∛8? =
  20. 20.What is 17³? =
  21. 21.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
  22. 22.A cuboid is 6 cm long, 9 cm wide and 4 cm high. What is its total surface area (in square cm)?
  23. 23.What is the smallest whole number by which 320 must be divided to get a perfect cube?
  24. 24.What is the value of (3/8)⁻¹? =
  25. 25.What is 31²? =
  26. 26.Use (a + b)² = a² + 2ab + b² to find 89².
  27. 27.A big cube of edge 6 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  28. 28.A room is 11 m long, 7 m wide and 4 m high. What is the area of its four walls (in square m)?
  29. 29.3.8 × 10⁴ =
  30. 30.A square garden has an area of 361 square m. How long is each side (in m)?
  31. 31.Find the compound interest on ₹58400 at 5% per year for 2 years, compounded every year (in ₹).
  32. 32.If a + b = 5 and ab = 4, what is a² + b²?
  33. 33.What is 14³? =
  34. 34.What is the value of 4⁵? =
  35. 35.The diagonals of a rhombus are 20 cm and 12 cm. What is its area (in square cm)?
  36. 36.What is √5041? =
  37. 37.What is the sum of the first 18 odd numbers (1 + 3 + 5 + …)?
  38. 38.A square garden has an area of 3136 square m. How long is each side (in m)?
  39. 39.What is the value of 5⁴ × 5⁻²? =
  40. 40.What is 12³? =

Answer key

  1. 44044
  2. 3
  3. 0.77
  4. 196
  5. 600
  6. 64/49
  7. 17157
  8. 37
  9. 18
  10. 13725
  11. 0.0087
  12. 84
  13. 22
  14. 73
  15. 2
  16. 3
  17. 133
  18. 16
  19. 2
  20. 4913
  21. 13718
  22. 228
  23. 5
  24. 8/3
  25. 961
  26. 7921
  27. 216
  28. 144
  29. 38000
  30. 19
  31. 5986
  32. 17
  33. 2744
  34. 1024
  35. 120
  36. 71
  37. 324
  38. 56
  39. 25
  40. 1728

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