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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 664 · 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: 3(t − 1) = t + 25. What is t?
  2. 2.Find the value of x² + 2xy + y² when x = 12 and y = 11.
  3. 3.Each edge of a cube is 5 cm. What is its total surface area (in square cm)?
  4. 4.What is the value of 2⁸? =
  5. 5.Solve: p/2 + p/4 = 21. What is p?
  6. 6.Find the compound interest on ₹16800 at 5% per year for 2 years, compounded every year (in ₹).
  7. 7.What is the value of 2⁵ × 2⁻⁵? =
  8. 8.What is the value of 10¹ × 10⁻⁶? =
  9. 9.Write 4.8 × 10⁻¹ as a decimal. =
  10. 10.A trapezium has parallel sides of 27 cm and 26 cm, and the distance between them is 16 cm. What is its area (in square cm)?
  11. 11.Write (5⁹)² as a single power 5ⁿ. What is n?
  12. 12.A trapezium has parallel sides of 7 cm and 6 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  13. 13.What is the value of 2⁻⁴ (as a fraction)? =
  14. 14.The sum of two consecutive whole numbers is 41. What is the largest of them?
  15. 15.What is the difference between the compound interest and the simple interest on ₹19600 at 5% per year for 2 years (in ₹)?
  16. 16.Write 7.6 × 10⁻³ as a decimal. =
  17. 17.A town has 5000 people. The population grows by 12% every year. What will the population be after 2 years?
  18. 18.Write 7.7 × 10⁻¹ as a decimal. =
  19. 19.What is the smallest whole number by which 1512 must be divided to get a perfect cube?
  20. 20.Solve: 3(x − 2) = 2x + 8. What is x?
  21. 21.How many whole numbers lie between 15² and 16²?
  22. 22.What is the sum of the first 10 odd numbers (1 + 3 + 5 + …)?
  23. 23.A square garden has an area of 1024 square m. How long is each side (in m)?
  24. 24.Find the compound interest on ₹46600 at 12% per year for 1 year, compounded every year (in ₹).
  25. 25.A cube has a volume of 6859 cubic cm. How long is each edge (in cm)?
  26. 26.What is 24²? =
  27. 27.Solve: 5(m − 3) = 3m + 23. What is m?
  28. 28.How many whole numbers lie between 16² and 17²?
  29. 29.Find the compound interest on ₹36800 at 5% per year for 1 year, compounded every year (in ₹).
  30. 30.A father is 33 years older than his son. In 5 years, the father will be four times as old as his son. How old is the son now?
  31. 31.A big cube of edge 8 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  32. 32.What is 3³? =
  33. 33.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
  34. 34.Use a² − b² = (a + b)(a − b) to find 72² − 27².
  35. 35.What is the smallest whole number by which 12 must be multiplied to get a perfect square?
  36. 36.What is √5476? =
  37. 37.Write 9¹⁵ ÷ 9⁹ as a single power 9ⁿ. What is n?
  38. 38.9.7 × 10⁶ =
  39. 39.Find the compound interest on ₹20900 at 12% per year for 1 year, compounded every year (in ₹).
  40. 40.Which of these is a perfect square? (a) 749 (b) 750 (c) 729

Answer key

  1. 14
  2. 529
  3. 150
  4. 256
  5. 28
  6. 1722
  7. 1
  8. 1/100000
  9. 0.48
  10. 424
  11. 18
  12. 13
  13. 1/16
  14. 21
  15. 49
  16. 0.0076
  17. 6272
  18. 0.77
  19. 7
  20. 14
  21. 30
  22. 100
  23. 32
  24. 5592
  25. 19
  26. 576
  27. 19
  28. 32
  29. 1840
  30. 6
  31. 64
  32. 27
  33. 27783
  34. 4455
  35. 3
  36. 74
  37. 6
  38. 9700000
  39. 2508
  40. 729

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