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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 567 · 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 is the value of 9⁴? =
  2. 2.The total surface area of a cube is 150 square cm. How long is each edge (in cm)?
  3. 3.What is √2116? =
  4. 4.Find the compound interest on ₹6400 at 25% per year for 3 years, compounded every year (in ₹).
  5. 5.Solve: 3(n − 4) = 2n + 5. What is n?
  6. 6.What is 30²? =
  7. 7.3.7 × 10² =
  8. 8.What amount will ₹48800 grow to in 2 years at 15% per year compound interest (in ₹)?
  9. 9.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  10. 10.What is the value of 2⁵ × 2⁻³? =
  11. 11.A room is 3 m long, 9 m wide and 3 m high. What is the area of its four walls (in square m)?
  12. 12.What is the value of 3⁶ × 3⁻¹? =
  13. 13.How many whole numbers lie between 38² and 39²?
  14. 14.Solve: 5(m − 1) = 2m + 28. What is m?
  15. 15.Which of these is a perfect cube? (a) 1331 (b) 1334 (c) 1664
  16. 16.What amount will ₹24200 grow to in 1 year at 15% per year compound interest (in ₹)?
  17. 17.3.3 × 10⁷ =
  18. 18.A town has 18100 people. The population grows by 8% every year. What will the population be after 1 year?
  19. 19.Write 3⁵ ÷ 3² as a single power 3ⁿ. What is n?
  20. 20.Write 3⁷ ÷ 3⁵ as a single power 3ⁿ. What is n?
  21. 21.Solve: 9x + 9 = x + 97. What is x?
  22. 22.Find the compound interest on ₹37800 at 4% per year for 1 year, compounded every year (in ₹).
  23. 23.What is the smallest whole number by which 392 must be divided to get a perfect cube?
  24. 24.What is the value of 10¹ × 10⁻⁵? =
  25. 25.What is the smallest whole number by which 648 must be divided to get a perfect cube?
  26. 26.A big cube of edge 2 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  27. 27.A big cube of edge 4 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  28. 28.What is the smallest whole number by which 320 must be multiplied to get a perfect square?
  29. 29.A town has 40000 people. The population grows by 15% every year. What will the population be after 3 years?
  30. 30.Find the compound interest on ₹44200 at 12% per year for 1 year, compounded every year (in ₹).
  31. 31.Each edge of a cube is 14 cm. What is its total surface area (in square cm)?
  32. 32.Write 7.5 × 10⁻³ as a decimal. =
  33. 33.How many whole numbers lie between 25² and 26²?
  34. 34.What is 18³? =
  35. 35.The length of a rectangle is 7 cm more than its width. Its perimeter is 114 cm. What is its width (in cm)?
  36. 36.Write 5,200 in standard form as 5.2 × 10ⁿ. What is n?
  37. 37.A town has 48000 people. The population grows by 15% every year. What will the population be after 2 years?
  38. 38.Write 2.1 × 10⁻¹ as a decimal. =
  39. 39.What is the value of 6³? =
  40. 40.A room is 10 m long, 5 m wide and 3 m high. What is the area of its four walls (in square m)?

Answer key

  1. 6561
  2. 5
  3. 46
  4. 6100
  5. 17
  6. 900
  7. 370
  8. 64538
  9. 7
  10. 4
  11. 72
  12. 243
  13. 76
  14. 11
  15. 1331
  16. 27830
  17. 33000000
  18. 19548
  19. 3
  20. 2
  21. 11
  22. 1512
  23. 49
  24. 1/10000
  25. 3
  26. 8
  27. 8
  28. 5
  29. 60835
  30. 5304
  31. 1176
  32. 0.0075
  33. 50
  34. 5832
  35. 25
  36. 3
  37. 63480
  38. 0.21
  39. 216
  40. 90

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