← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 99 · 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.How many whole numbers lie between 15² and 16²?
  2. 2.A square garden has an area of 225 square m. How long is each side (in m)?
  3. 3.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  4. 4.The sum of two consecutive whole numbers is 29. What is the largest of them?
  5. 5.Solve: 8x + 18 = 5x + 27. What is x?
  6. 6.What is ∛12167? =
  7. 7.7 × 10⁶ =
  8. 8.What is ∛8000? =
  9. 9.Solve: x/3 + x/4 = 28. What is x?
  10. 10.A father is 18 years older than his son. In 4 years, the father will be four times as old as his son. How old is the son now?
  11. 11.The total surface area of a cube is 1176 square cm. How long is each edge (in cm)?
  12. 12.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
  13. 13.Use (a − b)² = a² − 2ab + b² to find 53².
  14. 14.What is 91²? =
  15. 15.What is the value of 2² × 2⁻⁵? =
  16. 16.What is the value of 3⁸? =
  17. 17.Use a² − b² = (a + b)(a − b) to find 86² − 80².
  18. 18.What is the value of 2¹⁰? =
  19. 19.Solve: n/3 + n/6 = 9. What is n?
  20. 20.What is 4³? =
  21. 21.A square garden has an area of 25 square m. How long is each side (in m)?
  22. 22.Write 760 in standard form as 7.6 × 10ⁿ. What is n?
  23. 23.The length of a rectangle is 1 cm more than its width. Its perimeter is 54 cm. What is its width (in cm)?
  24. 24.What is the smallest whole number by which 960 must be multiplied to get a perfect square?
  25. 25.Write 9.2 × 10⁻² as a decimal. =
  26. 26.How many whole numbers lie between 35² and 36²?
  27. 27.What is the value of (3/4)⁻²? =
  28. 28.A town has 24500 people. The population grows by 10% every year. What will the population be after 1 year?
  29. 29.What is the value of 2¹ × 2⁻²? =
  30. 30.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
  31. 31.The sum of three consecutive whole numbers is 126. What is the largest of them?
  32. 32.Write 1.4 × 10⁻³ as a decimal. =
  33. 33.What is 20²? =
  34. 34.What is the value of 10⁵ × 10⁻⁵? =
  35. 35.What is the value of 5⁻² (as a fraction)? =
  36. 36.What is 63²? =
  37. 37.The total surface area of a cube is 1536 square cm. How long is each edge (in cm)?
  38. 38.If a − b = 5 and ab = 50, what is a² + b²?
  39. 39.How many whole numbers lie between 32² and 33²?
  40. 40.What is the smallest whole number by which 875 must be multiplied to get a perfect cube?

Answer key

  1. 30
  2. 15
  3. 27
  4. 15
  5. 3
  6. 23
  7. 7000000
  8. 20
  9. 48
  10. 2
  11. 14
  12. 108
  13. 2809
  14. 8281
  15. 1/8
  16. 6561
  17. 996
  18. 1024
  19. 18
  20. 64
  21. 5
  22. 2
  23. 13
  24. 15
  25. 0.092
  26. 70
  27. 16/9
  28. 26950
  29. 1/2
  30. 7
  31. 43
  32. 0.0014
  33. 400
  34. 1
  35. 1/25
  36. 3969
  37. 16
  38. 125
  39. 64
  40. 49

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