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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 950 · 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.What is √1024? =
  2. 2.Write 6.6 × 10⁻¹ as a decimal. =
  3. 3.A trapezium has parallel sides of 13 cm and 8 cm, and the distance between them is 8 cm. What is its area (in square cm)?
  4. 4.What is √5476? =
  5. 5.What amount will ₹20000 grow to in 2 years at 12% per year compound interest (in ₹)?
  6. 6.Solve: m/5 + m/3 = 48. What is m?
  7. 7.The diagonals of a rhombus are 28 cm and 14 cm. What is its area (in square cm)?
  8. 8.A town has 60000 people. The population grows by 12% every year. What will the population be after 2 years?
  9. 9.The total surface area of a cube is 96 square cm. How long is each edge (in cm)?
  10. 10.A father is 16 years older than his son. In 7 years, the father will be twice as old as his son. How old is the son now?
  11. 11.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
  12. 12.What is the value of 5¹ × 5⁻²? =
  13. 13.What is the smallest whole number by which 375 must be divided to get a perfect cube?
  14. 14.A big cube of edge 4 cm is cut into small cubes of edge 1 cm. How many small cubes are there?
  15. 15.The total surface area of a cube is 384 square cm. How long is each edge (in cm)?
  16. 16.How many whole numbers lie between 20² and 21²?
  17. 17.Solve: n/4 + n/2 = 21. What is n?
  18. 18.Use (a + b)(a − b) = a² − b² to find 72 × 68.
  19. 19.Solve: 3(m − 3) = m + 3. What is m?
  20. 20.What is the value of 2⁴ × 2⁻⁴? =
  21. 21.What is 35²? =
  22. 22.Write 3⁹ × 3³ as a single power 3ⁿ. What is n?
  23. 23.What is ∛15625? =
  24. 24.Solve: p/2 + p/5 = 28. What is p?
  25. 25.A scooter is worth ₹43100. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
  26. 26.The total surface area of a cube is 216 square cm. How long is each edge (in cm)?
  27. 27.How many whole numbers lie between 6² and 7²?
  28. 28.A cuboid is 14 cm long, 2 cm wide and 6 cm high. What is its total surface area (in square cm)?
  29. 29.What is 10³? =
  30. 30.The sum of four consecutive whole numbers is 170. What is the largest of them?
  31. 31.A square garden has an area of 729 square m. How long is each side (in m)?
  32. 32.What is the sum of the first 9 odd numbers (1 + 3 + 5 + …)?
  33. 33.Each edge of a cube is 9 cm. What is its total surface area (in square cm)?
  34. 34.What is ∛1000? =
  35. 35.What is 17³? =
  36. 36.Solve: 4m + 19 = 2m + 35. What is m?
  37. 37.A town has 27200 people. The population grows by 4% every year. What will the population be after 1 year?
  38. 38.Find the value of x² − y² when x = 6 and y = 4.
  39. 39.How many whole numbers lie between 27² and 28²?
  40. 40.What is the value of 7⁻² (as a fraction)? =

Answer key

  1. 32
  2. 0.66
  3. 84
  4. 74
  5. 25088
  6. 90
  7. 196
  8. 75264
  9. 4
  10. 9
  11. 144
  12. 1/5
  13. 3
  14. 64
  15. 8
  16. 40
  17. 28
  18. 4896
  19. 6
  20. 1
  21. 1225
  22. 12
  23. 25
  24. 40
  25. 36635
  26. 6
  27. 12
  28. 248
  29. 1000
  30. 44
  31. 27
  32. 81
  33. 486
  34. 10
  35. 4913
  36. 8
  37. 28288
  38. 20
  39. 54
  40. 1/49

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