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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 810 · 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.The sum of two consecutive whole numbers is 107. What is the largest of them?
  2. 2.Write 1.9 × 10⁻¹ as a decimal. =
  3. 3.7.2 × 10⁴ =
  4. 4.What amount will ₹30400 grow to in 2 years at 25% per year compound interest (in ₹)?
  5. 5.A cuboid is 8 cm long, 11 cm wide and 10 cm high. What is its total surface area (in square cm)?
  6. 6.What is the smallest whole number by which 567 must be multiplied to get a perfect square?
  7. 7.What is ∛3375? =
  8. 8.A square garden has an area of 81 square m. How long is each side (in m)?
  9. 9.How many whole numbers lie between 16² and 17²?
  10. 10.The total surface area of a cube is 1944 square cm. How long is each edge (in cm)?
  11. 11.Use (a + b)² = a² + 2ab + b² to find 16².
  12. 12.A big cube of edge 5 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  13. 13.Find the compound interest on ₹19500 at 10% per year for 1 year, compounded every year (in ₹).
  14. 14.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
  15. 15.What is the sum of the first 10 odd numbers (1 + 3 + 5 + …)?
  16. 16.A square garden has an area of 3136 square m. How long is each side (in m)?
  17. 17.What is the value of 5⁴ × 5⁻⁶? =
  18. 18.3.2 × 10⁴ =
  19. 19.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
  20. 20.What is the value of 2³? =
  21. 21.Each edge of a cube is 16 cm. What is its total surface area (in square cm)?
  22. 22.Solve: 3(n − 2) = 2n + 3. What is n?
  23. 23.Solve: 6y + 7 = 4y + 9. What is y?
  24. 24.A trapezium has an area of 225 square cm. Its parallel sides are 7 cm and 18 cm. What is the distance between them (in cm)?
  25. 25.Write 8,70,000 in standard form as 8.7 × 10ⁿ. What is n?
  26. 26.Solve: 3(t − 1) = t + 25. What is t?
  27. 27.What is √144? =
  28. 28.A square garden has an area of 2116 square m. How long is each side (in m)?
  29. 29.A square garden has an area of 529 square m. How long is each side (in m)?
  30. 30.What is the value of 5¹ × 5⁻⁶? =
  31. 31.Find the compound interest on ₹22400 at 25% per year for 1 year, compounded every year (in ₹).
  32. 32.What is the difference between the compound interest and the simple interest on ₹6400 at 5% per year for 2 years (in ₹)?
  33. 33.Solve: 4(p − 2) = 2p + 20. What is p?
  34. 34.Which of these is a perfect cube? (a) 27 (b) 46 (c) 44
  35. 35.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
  36. 36.Which of these is a perfect square? (a) 812 (b) 789 (c) 784
  37. 37.A cuboid is 13 cm long, 9 cm wide and 8 cm high. What is its total surface area (in square cm)?
  38. 38.Which of these is a perfect cube? (a) 2099 (b) 1940 (c) 1728
  39. 39.A square garden has an area of 25 square m. How long is each side (in m)?
  40. 40.What is the value of 10⁻³ (as a fraction)? =

Answer key

  1. 54
  2. 0.19
  3. 72000
  4. 47500
  5. 556
  6. 7
  7. 15
  8. 9
  9. 32
  10. 18
  11. 256
  12. 125
  13. 1950
  14. 73002
  15. 100
  16. 56
  17. 1/25
  18. 32000
  19. 19
  20. 8
  21. 1536
  22. 9
  23. 1
  24. 18
  25. 5
  26. 14
  27. 12
  28. 46
  29. 23
  30. 1/3125
  31. 5600
  32. 16
  33. 14
  34. 27
  35. 9540
  36. 784
  37. 586
  38. 1728
  39. 5
  40. 1/1000

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