← Class 8 final maths test lesson New set →

Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 594 · 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 12²? =
  2. 2.What is ∛1000? =
  3. 3.What is 6³? =
  4. 4.Use (a − b)² = a² − 2ab + b² to find 51².
  5. 5.A room is 8 m long, 5 m wide and 5 m high. What is the area of its four walls (in square m)?
  6. 6.9.9 × 10³ =
  7. 7.A trapezium has an area of 35 square cm. Its parallel sides are 23 cm and 12 cm. What is the distance between them (in cm)?
  8. 8.What is 26²? =
  9. 9.A cube has a volume of 8000 cubic cm. How long is each edge (in cm)?
  10. 10.Write 2.9 × 10⁻⁴ as a decimal. =
  11. 11.Use (a + b)(a − b) = a² − b² to find 32 × 28.
  12. 12.What is ∛10648? =
  13. 13.Which of these is a perfect cube? (a) 85 (b) 111 (c) 64
  14. 14.A trapezium has an area of 84 square cm. Its parallel sides are 30 cm and 12 cm. What is the distance between them (in cm)?
  15. 15.What is √5776? =
  16. 16.What is the smallest whole number by which 80 must be multiplied to get a perfect square?
  17. 17.Find the value of x² − 2xy + y² when x = 15 and y = 13.
  18. 18.What is the difference between the compound interest and the simple interest on ₹36000 at 10% per year for 2 years (in ₹)?
  19. 19.Use (a + b)(a − b) = a² − b² to find 81 × 79.
  20. 20.What is the value of 2¹²? =
  21. 21.Write 9,900 in standard form as 9.9 × 10ⁿ. What is n?
  22. 22.Use (a + b)² = a² + 2ab + b² to find 32².
  23. 23.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
  24. 24.Write 8 × 10⁻¹ as a decimal. =
  25. 25.Use (a + b)² = a² + 2ab + b² to find 92².
  26. 26.What is the value of 10¹ × 10⁻¹? =
  27. 27.A trapezium has an area of 81 square cm. Its parallel sides are 9 cm and 18 cm. What is the distance between them (in cm)?
  28. 28.Find the compound interest on ₹26000 at 10% per year for 1 year, compounded every year (in ₹).
  29. 29.How many whole numbers lie between 8² and 9²?
  30. 30.A cuboid is 7 cm long, 6 cm wide and 6 cm high. What is its total surface area (in square cm)?
  31. 31.Solve: y/3 + y/5 = 8. What is y?
  32. 32.Which of these is a perfect square? (a) 1394 (b) 1389 (c) 1369
  33. 33.Solve: 5x + 3 = 2x + 15. What is x?
  34. 34.Solve: m/2 + m/4 = 15. What is m?
  35. 35.Use a² − b² = (a + b)(a − b) to find 21² − 20².
  36. 36.Solve: 4(p − 3) = p + 6. What is p?
  37. 37.What is the smallest whole number by which 108 must be divided to get a perfect square?
  38. 38.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
  39. 39.A cube has a volume of 2744 cubic cm. How long is each edge (in cm)?
  40. 40.Solve: 4(x − 2) = x + 13. What is x?

Answer key

  1. 144
  2. 10
  3. 216
  4. 2601
  5. 130
  6. 9900
  7. 2
  8. 676
  9. 20
  10. 0.00029
  11. 896
  12. 22
  13. 64
  14. 4
  15. 76
  16. 5
  17. 4
  18. 360
  19. 6399
  20. 4096
  21. 3
  22. 1024
  23. 24334
  24. 0.8
  25. 8464
  26. 1
  27. 6
  28. 2600
  29. 16
  30. 240
  31. 15
  32. 1369
  33. 4
  34. 20
  35. 41
  36. 6
  37. 3
  38. 576
  39. 14
  40. 7

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