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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 692 · 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 amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?
  2. 2.What is 94²? =
  3. 3.Find the compound interest on ₹9000 at 10% per year for 3 years, compounded every year (in ₹).
  4. 4.What is the value of (5/7)⁻²? =
  5. 5.What is the value of 5⁵ × 5⁻⁵? =
  6. 6.What is ∛1728? =
  7. 7.Write 5² × 5⁶ as a single power 5ⁿ. What is n?
  8. 8.What is the smallest whole number by which 135 must be divided to get a perfect square?
  9. 9.A square garden has an area of 64 square m. How long is each side (in m)?
  10. 10.What is the value of 3¹ × 3⁻⁴? =
  11. 11.Find the compound interest on ₹45000 at 12% per year for 2 years, compounded every year (in ₹).
  12. 12.Solve: 5(t − 5) = 4t + 2. What is t?
  13. 13.The sum of two consecutive whole numbers is 67. What is the smallest of them?
  14. 14.A room is 10 m long, 10 m wide and 5 m high. What is the area of its four walls (in square m)?
  15. 15.Write 1.6 × 10⁻² as a decimal. =
  16. 16.What is 11²? =
  17. 17.A cube has a volume of 216 cubic cm. How long is each edge (in cm)?
  18. 18.A trapezium has parallel sides of 23 cm and 8 cm, and the distance between them is 12 cm. What is its area (in square cm)?
  19. 19.A cube has a volume of 27 cubic cm. How long is each edge (in cm)?
  20. 20.What is the value of 2² × 2⁻²? =
  21. 21.What is √576? =
  22. 22.How many whole numbers lie between 7² and 8²?
  23. 23.Write 4 × 10⁻⁴ as a decimal. =
  24. 24.A trapezium has parallel sides of 21 cm and 19 cm, and the distance between them is 19 cm. What is its area (in square cm)?
  25. 25.A father is 22 years older than his son. In 4 years, the father will be three times as old as his son. How old is the son now?
  26. 26.What is √3969? =
  27. 27.What is the value of 10⁶ × 10⁻¹? =
  28. 28.Write 7.3 × 10⁻² as a decimal. =
  29. 29.A room is 4 m long, 6 m wide and 3 m high. What is the area of its four walls (in square m)?
  30. 30.The sum of four consecutive whole numbers is 90. What is the largest of them?
  31. 31.A square garden has an area of 1225 square m. How long is each side (in m)?
  32. 32.A cube has a volume of 3375 cubic cm. How long is each edge (in cm)?
  33. 33.Use a² − b² = (a + b)(a − b) to find 36² − 4².
  34. 34.What is the value of 10⁶ × 10⁻⁴? =
  35. 35.What is ∛4913? =
  36. 36.Which of these is a perfect square? (a) 251 (b) 225 (c) 245
  37. 37.A cuboid is 6 cm long, 2 cm wide and 5 cm high. What is its total surface area (in square cm)?
  38. 38.Each edge of a cube is 19 cm. What is its total surface area (in square cm)?
  39. 39.What is the value of 5⁻¹ (as a fraction)? =
  40. 40.Use (a + b)(a − b) = a² − b² to find 43 × 37.

Answer key

  1. 21875
  2. 8836
  3. 2979
  4. 49/25
  5. 1
  6. 12
  7. 8
  8. 15
  9. 8
  10. 1/27
  11. 11448
  12. 27
  13. 33
  14. 200
  15. 0.016
  16. 121
  17. 6
  18. 186
  19. 3
  20. 1
  21. 24
  22. 14
  23. 0.0004
  24. 380
  25. 7
  26. 63
  27. 100000
  28. 0.073
  29. 60
  30. 24
  31. 35
  32. 15
  33. 1280
  34. 100
  35. 17
  36. 225
  37. 104
  38. 2166
  39. 1/5
  40. 1591

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