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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 599 · 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 the difference between the compound interest and the simple interest on ₹58000 at 5% per year for 2 years (in ₹)?
  2. 2.Find the compound interest on ₹59200 at 20% per year for 2 years, compounded every year (in ₹).
  3. 3.What is the difference between the compound interest and the simple interest on ₹46000 at 25% per year for 2 years (in ₹)?
  4. 4.The sum of four consecutive whole numbers is 50. What is the smallest of them?
  5. 5.Which of these is a perfect square? (a) 1426 (b) 1369 (c) 1437
  6. 6.Which of these is a perfect cube? (a) 663 (b) 512 (c) 611
  7. 7.A father is 18 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?
  8. 8.The sum of two consecutive whole numbers is 15. What is the smallest of them?
  9. 9.A trapezium has an area of 99 square cm. Its parallel sides are 26 cm and 7 cm. What is the distance between them (in cm)?
  10. 10.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
  11. 11.What is 15²? =
  12. 12.Solve: x/4 + x/5 = 36. What is x?
  13. 13.A square garden has an area of 400 square m. How long is each side (in m)?
  14. 14.A big cube of edge 9 cm is cut into small cubes of edge 3 cm. How many small cubes are there?
  15. 15.Find the value of x² − y² when x = 8 and y = 1.
  16. 16.A scooter is worth ₹19000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
  17. 17.What is the smallest whole number by which 200 must be divided to get a perfect cube?
  18. 18.Find the compound interest on ₹58500 at 10% per year for 1 year, compounded every year (in ₹).
  19. 19.What is the value of (2/9)⁻²? =
  20. 20.Use (a − b)² = a² − 2ab + b² to find 21².
  21. 21.The total surface area of a cube is 294 square cm. How long is each edge (in cm)?
  22. 22.Which of these is a perfect cube? (a) 229 (b) 216 (c) 230
  23. 23.A scooter is worth ₹40000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
  24. 24.Solve: 6m + 16 = 2m + 36. What is m?
  25. 25.What is √2401? =
  26. 26.A cube has a volume of 1728 cubic cm. How long is each edge (in cm)?
  27. 27.A square garden has an area of 2500 square m. How long is each side (in m)?
  28. 28.What is the smallest whole number by which 735 must be multiplied to get a perfect square?
  29. 29.Solve: n/4 + n/2 = 9. What is n?
  30. 30.What is √4900? =
  31. 31.Use (a − b)² = a² − 2ab + b² to find 15².
  32. 32.Write 2.4 × 10⁻² as a decimal. =
  33. 33.A cuboid is 3 cm long, 2 cm wide and 4 cm high. What is its total surface area (in square cm)?
  34. 34.A room is 12 m long, 8 m wide and 3 m high. What is the area of its four walls (in square m)?
  35. 35.Solve: 5(x − 2) = x + 22. What is x?
  36. 36.What is the value of 7⁴? =
  37. 37.Use (a + b)(a − b) = a² − b² to find 82 × 78.
  38. 38.Write 9.5 × 10⁻³ as a decimal. =
  39. 39.Use (a + b)(a − b) = a² − b² to find 27 × 13.
  40. 40.A square garden has an area of 144 square m. How long is each side (in m)?

Answer key

  1. 145
  2. 26048
  3. 2875
  4. 11
  5. 1369
  6. 512
  7. 5
  8. 7
  9. 6
  10. 40
  11. 225
  12. 80
  13. 20
  14. 27
  15. 63
  16. 9728
  17. 25
  18. 5850
  19. 81/4
  20. 441
  21. 7
  22. 216
  23. 16875
  24. 5
  25. 49
  26. 12
  27. 50
  28. 15
  29. 12
  30. 70
  31. 225
  32. 0.024
  33. 52
  34. 120
  35. 8
  36. 2401
  37. 6396
  38. 0.0095
  39. 351
  40. 12

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