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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 283 · 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.Each edge of a cube is 5 cm. What is its total surface area (in square cm)?
  2. 2.Write (2⁹)⁴ as a single power 2ⁿ. What is n?
  3. 3.Solve: m/2 + m/4 = 24. What is m?
  4. 4.Which of these is a perfect square? (a) 196 (b) 202 (c) 205
  5. 5.Use (a + b)² = a² + 2ab + b² to find 52².
  6. 6.A town has 27600 people. The population grows by 15% every year. What will the population be after 2 years?
  7. 7.Use (a − b)² = a² − 2ab + b² to find 84².
  8. 8.How many whole numbers lie between 10² and 11²?
  9. 9.What is ∛6859? =
  10. 10.A room is 11 m long, 9 m wide and 3 m high. What is the area of its four walls (in square m)?
  11. 11.What is the smallest whole number by which 405 must be multiplied to get a perfect square?
  12. 12.What is ∛8000? =
  13. 13.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
  14. 14.8.5 × 10⁶ =
  15. 15.The length of a rectangle is 11 cm more than its width. Its perimeter is 102 cm. What is its width (in cm)?
  16. 16.Find the compound interest on ₹57600 at 25% per year for 3 years, compounded every year (in ₹).
  17. 17.What is 5³? =
  18. 18.What is the value of 2⁻⁹ (as a fraction)? =
  19. 19.Use a² − b² = (a + b)(a − b) to find 53² − 21².
  20. 20.What is ∛729? =
  21. 21.What is the value of 7⁻² (as a fraction)? =
  22. 22.What is the value of 3⁴? =
  23. 23.What is √8100? =
  24. 24.What is 54²? =
  25. 25.What is the value of 3⁵? =
  26. 26.What is the smallest whole number by which 960 must be divided to get a perfect square?
  27. 27.What is √8836? =
  28. 28.What is the value of (4/7)⁻¹? =
  29. 29.What is the value of 2¹⁴? =
  30. 30.Solve: x/2 + x/4 = 18. What is x?
  31. 31.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  32. 32.Solve: m/2 + m/3 = 20. What is m?
  33. 33.What is the sum of the first 12 odd numbers (1 + 3 + 5 + …)?
  34. 34.The sum of four consecutive whole numbers is 90. What is the largest of them?
  35. 35.A trapezium has an area of 255 square cm. Its parallel sides are 25 cm and 26 cm. What is the distance between them (in cm)?
  36. 36.Which of these is a perfect square? (a) 711 (b) 676 (c) 710
  37. 37.Solve: 7n + 17 = 2n + 27. What is n?
  38. 38.A father is 8 years older than his son. In 2 years, the father will be three times as old as his son. How old is the son now?
  39. 39.Write 7.4 × 10⁻⁴ as a decimal. =
  40. 40.Which of these is a perfect square? (a) 729 (b) 742 (c) 747

Answer key

  1. 150
  2. 36
  3. 32
  4. 196
  5. 2704
  6. 36501
  7. 7056
  8. 20
  9. 19
  10. 120
  11. 5
  12. 20
  13. 64
  14. 8500000
  15. 20
  16. 54900
  17. 125
  18. 1/512
  19. 2368
  20. 9
  21. 1/49
  22. 81
  23. 90
  24. 2916
  25. 243
  26. 15
  27. 94
  28. 7/4
  29. 16384
  30. 24
  31. 8
  32. 24
  33. 144
  34. 24
  35. 10
  36. 676
  37. 2
  38. 2
  39. 0.00074
  40. 729

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