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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 644 · 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.Use (a + b)² = a² + 2ab + b² to find 103².
  2. 2.A trapezium has parallel sides of 16 cm and 7 cm, and the distance between them is 2 cm. What is its area (in square cm)?
  3. 3.A cuboid is 5 cm long, 5 cm wide and 3 cm high. What is its total surface area (in square cm)?
  4. 4.Write 9.4 × 10⁻⁴ as a decimal. =
  5. 5.Find the compound interest on ₹55000 at 12% per year for 2 years, compounded every year (in ₹).
  6. 6.Solve: p/2 + p/3 = 5. What is p?
  7. 7.What is 18²? =
  8. 8.A cube has a volume of 2744 cubic cm. How long is each edge (in cm)?
  9. 9.Which of these is a perfect cube? (a) 3102 (b) 2938 (c) 2744
  10. 10.What is √4225? =
  11. 11.Each edge of a cube is 11 cm. What is its total surface area (in square cm)?
  12. 12.A cube has a volume of 64 cubic cm. How long is each edge (in cm)?
  13. 13.A father is 7 years older than his son. In 4 years, the father will be twice as old as his son. How old is the son now?
  14. 14.What is the value of 2⁸? =
  15. 15.What is the value of 3⁴ × 3⁻⁴? =
  16. 16.What is ∛8000? =
  17. 17.Use (a + b)(a − b) = a² − b² to find 54 × 46.
  18. 18.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  19. 19.The sum of two consecutive whole numbers is 93. What is the smallest of them?
  20. 20.What is the smallest whole number by which 90 must be multiplied to get a perfect square?
  21. 21.What is the value of 2³? =
  22. 22.A room is 9 m long, 6 m wide and 5 m high. What is the area of its four walls (in square m)?
  23. 23.Which of these is a perfect cube? (a) 135 (b) 125 (c) 134
  24. 24.Write 82,00,000 in standard form as 8.2 × 10ⁿ. What is n?
  25. 25.Solve: y/6 + y/3 = 6. What is y?
  26. 26.A square garden has an area of 1600 square m. How long is each side (in m)?
  27. 27.Use a² − b² = (a + b)(a − b) to find 30² − 9².
  28. 28.Write 23,00,000 in standard form as 2.3 × 10ⁿ. What is n?
  29. 29.What is √3025? =
  30. 30.What is √3600? =
  31. 31.The sum of two consecutive whole numbers is 81. What is the largest of them?
  32. 32.Use (a − b)² = a² − 2ab + b² to find 63².
  33. 33.If a + b = 15 and ab = 50, what is a² + b²?
  34. 34.A trapezium has parallel sides of 24 cm and 19 cm, and the distance between them is 16 cm. What is its area (in square cm)?
  35. 35.What is 47²? =
  36. 36.A cube has a volume of 343 cubic cm. How long is each edge (in cm)?
  37. 37.A room is 3 m long, 5 m wide and 5 m high. What is the area of its four walls (in square m)?
  38. 38.Which of these is a perfect cube? (a) 1007 (b) 1255 (c) 1000
  39. 39.Which of these is a perfect cube? (a) 294 (b) 246 (c) 216
  40. 40.How many whole numbers lie between 32² and 33²?

Answer key

  1. 10609
  2. 23
  3. 110
  4. 0.00094
  5. 13992
  6. 6
  7. 324
  8. 14
  9. 2744
  10. 65
  11. 726
  12. 4
  13. 3
  14. 256
  15. 1
  16. 20
  17. 2484
  18. 27
  19. 46
  20. 10
  21. 8
  22. 150
  23. 125
  24. 6
  25. 12
  26. 40
  27. 819
  28. 6
  29. 55
  30. 60
  31. 41
  32. 3969
  33. 125
  34. 344
  35. 2209
  36. 7
  37. 80
  38. 1000
  39. 216
  40. 64

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