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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 667 · 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.Solve: 6(x − 2) = 2x + 8. What is x?
  2. 2.Solve: 9m + 20 = 5m + 40. What is m?
  3. 3.Write 9.5 × 10⁻³ as a decimal. =
  4. 4.What is 20³? =
  5. 5.Solve: m/5 + m/4 = 18. What is m?
  6. 6.A father is 14 years older than his son. In 3 years, the father will be three times as old as his son. How old is the son now?
  7. 7.Find the compound interest on ₹47100 at 20% per year for 2 years, compounded every year (in ₹).
  8. 8.What amount will ₹44700 grow to in 2 years at 10% per year compound interest (in ₹)?
  9. 9.What is the value of 5³ × 5⁻⁴? =
  10. 10.The sum of three consecutive whole numbers is 96. What is the largest of them?
  11. 11.Which of these is a perfect square? (a) 144 (b) 167 (c) 166
  12. 12.A square garden has an area of 2601 square m. How long is each side (in m)?
  13. 13.What is the value of 3⁶? =
  14. 14.What amount will ₹56000 grow to in 3 years at 10% per year compound interest (in ₹)?
  15. 15.A big cube of edge 12 cm is cut into small cubes of edge 4 cm. How many small cubes are there?
  16. 16.A trapezium has an area of 270 square cm. Its parallel sides are 27 cm and 9 cm. What is the distance between them (in cm)?
  17. 17.What is the smallest whole number by which 486 must be multiplied to get a perfect square?
  18. 18.A cuboid is 15 cm long, 11 cm wide and 6 cm high. What is its total surface area (in square cm)?
  19. 19.A father is 54 years older than his son. In 7 years, the father will be four times as old as his son. How old is the son now?
  20. 20.Which of these is a perfect cube? (a) 230 (b) 216 (c) 280
  21. 21.What is the sum of the first 19 odd numbers (1 + 3 + 5 + …)?
  22. 22.What is the difference between the compound interest and the simple interest on ₹36000 at 20% per year for 2 years (in ₹)?
  23. 23.Use (a + b)² = a² + 2ab + b² to find 99².
  24. 24.What is the value of 3³ × 3⁻⁶? =
  25. 25.What is the difference between the compound interest and the simple interest on ₹39600 at 25% per year for 2 years (in ₹)?
  26. 26.Which of these is a perfect square? (a) 1028 (b) 1024 (c) 1043
  27. 27.What is the value of (5/7)⁻¹? =
  28. 28.A town has 11600 people. The population grows by 15% every year. What will the population be after 2 years?
  29. 29.What amount will ₹34000 grow to in 1 year at 15% per year compound interest (in ₹)?
  30. 30.A town has 42500 people. The population grows by 8% every year. What will the population be after 2 years?
  31. 31.What is the difference between the compound interest and the simple interest on ₹36400 at 25% per year for 2 years (in ₹)?
  32. 32.Write 3¹¹ ÷ 3⁶ as a single power 3ⁿ. What is n?
  33. 33.If a − b = 4 and ab = 45, what is a² + b²?
  34. 34.What is the value of 3² × 3⁻¹? =
  35. 35.What is 96²? =
  36. 36.What is the value of 2¹⁵? =
  37. 37.Solve: 6m + 11 = 4m + 25. What is m?
  38. 38.Which of these is a perfect square? (a) 1237 (b) 1238 (c) 1225
  39. 39.How many whole numbers lie between 10² and 11²?
  40. 40.What amount will ₹28400 grow to in 1 year at 25% per year compound interest (in ₹)?

Answer key

  1. 5
  2. 5
  3. 0.0095
  4. 8000
  5. 40
  6. 4
  7. 20724
  8. 54087
  9. 1/5
  10. 33
  11. 144
  12. 51
  13. 729
  14. 74536
  15. 27
  16. 15
  17. 6
  18. 642
  19. 11
  20. 216
  21. 361
  22. 1440
  23. 9801
  24. 1/27
  25. 2475
  26. 1024
  27. 7/5
  28. 15341
  29. 39100
  30. 49572
  31. 2275
  32. 5
  33. 106
  34. 3
  35. 9216
  36. 32768
  37. 7
  38. 1225
  39. 20
  40. 35500

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