← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 344 · 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.Write 5¹⁴ ÷ 5⁵ as a single power 5ⁿ. What is n?
  2. 2.Use (a − b)² = a² − 2ab + b² to find 47².
  3. 3.What is √1156? =
  4. 4.Which of these is a perfect square? (a) 1015 (b) 961 (c) 993
  5. 5.Find the compound interest on ₹4600 at 5% per year for 1 year, compounded every year (in ₹).
  6. 6.What is the difference between the compound interest and the simple interest on ₹36000 at 10% per year for 2 years (in ₹)?
  7. 7.What is the value of 5⁷? =
  8. 8.5.8 × 10⁴ =
  9. 9.What is 14³? =
  10. 10.A trapezium has parallel sides of 22 cm and 10 cm, and the distance between them is 8 cm. What is its area (in square cm)?
  11. 11.What is 13³? =
  12. 12.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  13. 13.What is the smallest whole number by which 8 must be divided to get a perfect square?
  14. 14.Each edge of a cube is 23 cm. What is its total surface area (in square cm)?
  15. 15.What is the smallest whole number by which 45 must be multiplied to get a perfect square?
  16. 16.What is the value of 2⁴ × 2⁻⁴? =
  17. 17.What is 40²? =
  18. 18.How many whole numbers lie between 29² and 30²?
  19. 19.Solve: x/2 + x/3 = 25. What is x?
  20. 20.What is the value of 5⁶ × 5⁻⁵? =
  21. 21.What is ∛729? =
  22. 22.What amount will ₹16000 grow to in 3 years at 10% per year compound interest (in ₹)?
  23. 23.Which of these is a perfect square? (a) 119 (b) 103 (c) 100
  24. 24.Use (a + b)² = a² + 2ab + b² to find 18².
  25. 25.What is the sum of the first 21 odd numbers (1 + 3 + 5 + …)?
  26. 26.What is the value of (1/6)⁻¹? =
  27. 27.What is the value of 10⁴? =
  28. 28.Use (a + b)² = a² + 2ab + b² to find 36².
  29. 29.What is the smallest whole number by which 200 must be divided to get a perfect cube?
  30. 30.Write 4.7 × 10⁻⁴ as a decimal. =
  31. 31.A big cube of edge 12 cm is cut into small cubes of edge 2 cm. How many small cubes are there?
  32. 32.The total surface area of a cube is 1176 square cm. How long is each edge (in cm)?
  33. 33.What is the difference between the compound interest and the simple interest on ₹36000 at 15% per year for 2 years (in ₹)?
  34. 34.What is the value of 5³ × 5⁻¹? =
  35. 35.Which of these is a perfect square? (a) 1317 (b) 1296 (c) 1352
  36. 36.How many whole numbers lie between 20² and 21²?
  37. 37.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
  38. 38.Each edge of a cube is 8 cm. What is its total surface area (in square cm)?
  39. 39.What is the value of 3¹⁰? =
  40. 40.Solve: 3(m − 5) = m + 7. What is m?

Answer key

  1. 9
  2. 2209
  3. 34
  4. 961
  5. 230
  6. 360
  7. 78125
  8. 58000
  9. 2744
  10. 128
  11. 2197
  12. 27
  13. 2
  14. 3174
  15. 5
  16. 1
  17. 1600
  18. 58
  19. 30
  20. 5
  21. 9
  22. 21296
  23. 100
  24. 324
  25. 441
  26. 6
  27. 10000
  28. 1296
  29. 25
  30. 0.00047
  31. 216
  32. 14
  33. 810
  34. 25
  35. 1296
  36. 40
  37. 3783
  38. 384
  39. 59049
  40. 11

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets