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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 917 · 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.Which of these is a perfect square? (a) 115 (b) 119 (c) 100
  2. 2.Write 3,50,000 in standard form as 3.5 × 10ⁿ. What is n?
  3. 3.Solve: 6n + 1 = 5n + 8. What is n?
  4. 4.A square garden has an area of 1089 square m. How long is each side (in m)?
  5. 5.What is the smallest whole number by which 25 must be divided to get a perfect cube?
  6. 6.What is ∛216? =
  7. 7.What is ∛64? =
  8. 8.Find the compound interest on ₹42900 at 10% per year for 2 years, compounded every year (in ₹).
  9. 9.What is the value of 10³ × 10⁻⁴? =
  10. 10.What amount will ₹13000 grow to in 1 year at 4% per year compound interest (in ₹)?
  11. 11.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
  12. 12.What is the smallest whole number by which 252 must be divided to get a perfect square?
  13. 13.What is the value of 3⁵ × 3⁻⁴? =
  14. 14.The length of a rectangle is 5 cm more than its width. Its perimeter is 54 cm. What is its width (in cm)?
  15. 15.A square garden has an area of 1296 square m. How long is each side (in m)?
  16. 16.What is the value of 5⁶ × 5⁻²? =
  17. 17.Find the compound interest on ₹4200 at 12% per year for 1 year, compounded every year (in ₹).
  18. 18.What is the smallest whole number by which 117 must be multiplied to get a perfect square?
  19. 19.What is 34²? =
  20. 20.What is the difference between the compound interest and the simple interest on ₹2000 at 15% per year for 2 years (in ₹)?
  21. 21.Solve: 9x + 18 = x + 58. What is x?
  22. 22.A trapezium has an area of 261 square cm. Its parallel sides are 24 cm and 5 cm. What is the distance between them (in cm)?
  23. 23.Find the value of x² − 2xy + y² when x = 7 and y = 1.
  24. 24.A town has 28400 people. The population grows by 25% every year. What will the population be after 2 years?
  25. 25.The length of a rectangle is 1 cm more than its width. Its perimeter is 30 cm. What is its width (in cm)?
  26. 26.Which of these is a perfect cube? (a) 3729 (b) 3576 (c) 3375
  27. 27.A town has 8800 people. The population grows by 25% every year. What will the population be after 1 year?
  28. 28.Find the value of x² + 2xy + y² when x = 11 and y = 2.
  29. 29.What is the value of 8⁴? =
  30. 30.What is the smallest whole number by which 49 must be multiplied to get a perfect cube?
  31. 31.A cuboid is 8 cm long, 10 cm wide and 5 cm high. What is its total surface area (in square cm)?
  32. 32.Find the value of x² − 2xy + y² when x = 14 and y = 8.
  33. 33.What is 7³? =
  34. 34.Which of these is a perfect cube? (a) 1442 (b) 1380 (c) 1331
  35. 35.What is 40²? =
  36. 36.Which of these is a perfect square? (a) 192 (b) 177 (c) 169
  37. 37.A father is 14 years older than his son. In 3 years, the father will be twice as old as his son. How old is the son now?
  38. 38.A cube has a volume of 27 cubic cm. How long is each edge (in cm)?
  39. 39.Solve: n/5 + n/3 = 32. What is n?
  40. 40.What is the value of 2¹⁵? =

Answer key

  1. 100
  2. 5
  3. 7
  4. 33
  5. 25
  6. 6
  7. 4
  8. 9009
  9. 1/10
  10. 13520
  11. 19
  12. 7
  13. 3
  14. 11
  15. 36
  16. 625
  17. 504
  18. 13
  19. 1156
  20. 45
  21. 5
  22. 18
  23. 36
  24. 44375
  25. 7
  26. 3375
  27. 11000
  28. 169
  29. 4096
  30. 7
  31. 340
  32. 36
  33. 343
  34. 1331
  35. 1600
  36. 169
  37. 11
  38. 3
  39. 60
  40. 32768

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