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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 281 · 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.A big cube of edge 6 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  2. 2.What is √324? =
  3. 3.Find the compound interest on ₹31400 at 25% per year for 1 year, compounded every year (in ₹).
  4. 4.Solve: p/2 + p/4 = 6. What is p?
  5. 5.Write 3.4 × 10⁻¹ as a decimal. =
  6. 6.What is the value of 7³? =
  7. 7.What is the value of 10⁵ × 10⁻⁶? =
  8. 8.What is √576? =
  9. 9.A cuboid is 3 cm long, 8 cm wide and 10 cm high. What is its total surface area (in square cm)?
  10. 10.What is √8649? =
  11. 11.A trapezium has parallel sides of 24 cm and 29 cm, and the distance between them is 20 cm. What is its area (in square cm)?
  12. 12.The sum of three consecutive whole numbers is 144. What is the largest of them?
  13. 13.A big cube of edge 8 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  14. 14.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  15. 15.A square garden has an area of 36 square m. How long is each side (in m)?
  16. 16.Which of these is a perfect cube? (a) 73 (b) 88 (c) 64
  17. 17.Use (a − b)² = a² − 2ab + b² to find 59².
  18. 18.The diagonals of a rhombus are 20 cm and 19 cm. What is its area (in square cm)?
  19. 19.What is the value of 5⁶ × 5⁻⁶? =
  20. 20.Solve: n/6 + n/2 = 20. What is n?
  21. 21.Solve: t/3 + t/5 = 48. What is t?
  22. 22.What is the sum of the first 12 odd numbers (1 + 3 + 5 + …)?
  23. 23.Find the compound interest on ₹16400 at 10% per year for 2 years, compounded every year (in ₹).
  24. 24.A big cube of edge 18 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  25. 25.Write 7.6 × 10⁻¹ as a decimal. =
  26. 26.Write (2⁷)⁴ as a single power 2ⁿ. What is n?
  27. 27.The length of a rectangle is 1 cm more than its width. Its perimeter is 118 cm. What is its width (in cm)?
  28. 28.A scooter is worth ₹5000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
  29. 29.A square garden has an area of 676 square m. How long is each side (in m)?
  30. 30.What is the value of 5⁴? =
  31. 31.What is the value of 8⁴? =
  32. 32.A trapezium has parallel sides of 23 cm and 6 cm, and the distance between them is 14 cm. What is its area (in square cm)?
  33. 33.What is 41²? =
  34. 34.A trapezium has an area of 85 square cm. Its parallel sides are 30 cm and 4 cm. What is the distance between them (in cm)?
  35. 35.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  36. 36.What is 24²? =
  37. 37.The total surface area of a cube is 150 square cm. How long is each edge (in cm)?
  38. 38.What amount will ₹20500 grow to in 1 year at 25% per year compound interest (in ₹)?
  39. 39.9.1 × 10⁴ =
  40. 40.Write 9.2 × 10⁻⁴ as a decimal. =

Answer key

  1. 216
  2. 18
  3. 7850
  4. 8
  5. 0.34
  6. 343
  7. 1/10
  8. 24
  9. 268
  10. 93
  11. 530
  12. 49
  13. 8
  14. 8
  15. 6
  16. 64
  17. 3481
  18. 190
  19. 1
  20. 30
  21. 90
  22. 144
  23. 3444
  24. 216
  25. 0.76
  26. 28
  27. 29
  28. 4608
  29. 26
  30. 625
  31. 4096
  32. 203
  33. 1681
  34. 5
  35. 27
  36. 576
  37. 5
  38. 25625
  39. 91000
  40. 0.00092

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