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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 886 · 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 ₹46400 grow to in 2 years at 25% per year compound interest (in ₹)?
  2. 2.What is the difference between the compound interest and the simple interest on ₹51200 at 15% per year for 2 years (in ₹)?
  3. 3.Use a² − b² = (a + b)(a − b) to find 98² − 40².
  4. 4.Solve: 6p + 4 = 4p + 26. What is p?
  5. 5.What is the value of 2⁶ × 2⁻³? =
  6. 6.Write 8² × 8⁶ as a single power 8ⁿ. What is n?
  7. 7.A father is 13 years older than his son. In 4 years, the father will be twice as old as his son. How old is the son now?
  8. 8.The sum of four consecutive whole numbers is 54. What is the smallest of them?
  9. 9.What is ∛8000? =
  10. 10.Solve: p/5 + p/2 = 14. What is p?
  11. 11.How many whole numbers lie between 22² and 23²?
  12. 12.A trapezium has an area of 376 square cm. Its parallel sides are 18 cm and 29 cm. What is the distance between them (in cm)?
  13. 13.What is the smallest whole number by which 432 must be divided to get a perfect cube?
  14. 14.9.4 × 10⁷ =
  15. 15.What is the value of 8⁵? =
  16. 16.Use a² − b² = (a + b)(a − b) to find 92² − 27².
  17. 17.What is the value of 2¹²? =
  18. 18.Use (a + b)(a − b) = a² − b² to find 44 × 36.
  19. 19.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  20. 20.Which of these is a perfect cube? (a) 2228 (b) 2197 (c) 2529
  21. 21.Which of these is a perfect cube? (a) 931 (b) 777 (c) 729
  22. 22.Find the compound interest on ₹5600 at 20% per year for 1 year, compounded every year (in ₹).
  23. 23.What is ∛9261? =
  24. 24.What is the value of 5¹ × 5⁻¹? =
  25. 25.A father is 45 years older than his son. In 5 years, the father will be four times as old as his son. How old is the son now?
  26. 26.The total surface area of a cube is 600 square cm. How long is each edge (in cm)?
  27. 27.Solve: 6(n − 4) = 3n + 27. What is n?
  28. 28.A trapezium has an area of 10 square cm. Its parallel sides are 4 cm and 6 cm. What is the distance between them (in cm)?
  29. 29.What is the sum of the first 5 odd numbers (1 + 3 + 5 + …)?
  30. 30.A father is 6 years older than his son. In 2 years, the father will be twice as old as his son. How old is the son now?
  31. 31.What is the sum of the first 20 odd numbers (1 + 3 + 5 + …)?
  32. 32.What is the value of 3²? =
  33. 33.Which of these is a perfect cube? (a) 512 (b) 694 (c) 527
  34. 34.What is the difference between the compound interest and the simple interest on ₹32000 at 10% per year for 2 years (in ₹)?
  35. 35.What is the difference between the compound interest and the simple interest on ₹40800 at 5% per year for 2 years (in ₹)?
  36. 36.A father is 51 years older than his son. In 5 years, the father will be four times as old as his son. How old is the son now?
  37. 37.2 × 10⁷ =
  38. 38.A room is 12 m long, 4 m wide and 3 m high. What is the area of its four walls (in square m)?
  39. 39.How many whole numbers lie between 25² and 26²?
  40. 40.Solve: 6t + 20 = t + 60. What is t?

Answer key

  1. 72500
  2. 1152
  3. 8004
  4. 11
  5. 8
  6. 8
  7. 9
  8. 12
  9. 20
  10. 20
  11. 44
  12. 16
  13. 2
  14. 94000000
  15. 32768
  16. 7735
  17. 4096
  18. 1584
  19. 8
  20. 2197
  21. 729
  22. 1120
  23. 21
  24. 1
  25. 10
  26. 10
  27. 17
  28. 2
  29. 25
  30. 4
  31. 400
  32. 9
  33. 512
  34. 320
  35. 102
  36. 12
  37. 20000000
  38. 96
  39. 50
  40. 8

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