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Class 8 Maths Final Test Worksheet

Maths worksheets lesson 64: Class 8 final maths test · Set 273 · 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 value of 2¹ × 2⁻¹? =
  2. 2.Use a² − b² = (a + b)(a − b) to find 25² − 23².
  3. 3.Solve: 3(n − 2) = 2n + 8. What is n?
  4. 4.What is ∛4913? =
  5. 5.What amount will ₹15000 grow to in 2 years at 12% per year compound interest (in ₹)?
  6. 6.Solve: x/3 + x/2 = 25. What is x?
  7. 7.What is 20³? =
  8. 8.Write 3.7 × 10⁻² as a decimal. =
  9. 9.What amount will ₹24600 grow to in 1 year at 10% per year compound interest (in ₹)?
  10. 10.What is the value of (3/5)⁻²? =
  11. 11.Write 3,20,000 in standard form as 3.2 × 10ⁿ. What is n?
  12. 12.Which of these is a perfect square? (a) 153 (b) 144 (c) 168
  13. 13.Write 9¹² ÷ 9³ as a single power 9ⁿ. What is n?
  14. 14.What is 2³? =
  15. 15.A room is 5 m long, 6 m wide and 4 m high. What is the area of its four walls (in square m)?
  16. 16.A trapezium has parallel sides of 22 cm and 30 cm, and the distance between them is 13 cm. What is its area (in square cm)?
  17. 17.Solve: 4p + 15 = p + 18. What is p?
  18. 18.Write 3⁸ × 3³ as a single power 3ⁿ. What is n?
  19. 19.The diagonals of a rhombus are 24 cm and 19 cm. What is its area (in square cm)?
  20. 20.Write 6.6 × 10⁻³ as a decimal. =
  21. 21.Solve: 4(x − 4) = 3x + 2. What is x?
  22. 22.What is the value of 5⁴ × 5⁻²? =
  23. 23.Use a² − b² = (a + b)(a − b) to find 94² − 90².
  24. 24.What is the value of 2³? =
  25. 25.A cuboid is 7 cm long, 12 cm wide and 5 cm high. What is its total surface area (in square cm)?
  26. 26.What is the smallest whole number by which 243 must be multiplied to get a perfect square?
  27. 27.Use (a + b)(a − b) = a² − b² to find 82 × 78.
  28. 28.Use (a + b)(a − b) = a² − b² to find 49 × 31.
  29. 29.Find the value of x² − y² when x = 12 and y = 2.
  30. 30.What amount will ₹20400 grow to in 2 years at 15% per year compound interest (in ₹)?
  31. 31.How many whole numbers lie between 42² and 43²?
  32. 32.Solve: 7y + 2 = 5y + 10. What is y?
  33. 33.A square garden has an area of 169 square m. How long is each side (in m)?
  34. 34.Use (a − b)² = a² − 2ab + b² to find 17².
  35. 35.Each edge of a cube is 3 cm. What is its total surface area (in square cm)?
  36. 36.Write 6⁷ ÷ 6⁴ as a single power 6ⁿ. What is n?
  37. 37.The diagonals of a rhombus are 14 cm and 20 cm. What is its area (in square cm)?
  38. 38.1.8 × 10³ =
  39. 39.What is the smallest whole number by which 396 must be divided to get a perfect square?
  40. 40.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?

Answer key

  1. 1
  2. 96
  3. 14
  4. 17
  5. 18816
  6. 30
  7. 8000
  8. 0.037
  9. 27060
  10. 25/9
  11. 5
  12. 144
  13. 9
  14. 8
  15. 88
  16. 338
  17. 1
  18. 11
  19. 228
  20. 0.0066
  21. 18
  22. 25
  23. 736
  24. 8
  25. 358
  26. 3
  27. 6396
  28. 1519
  29. 140
  30. 26979
  31. 84
  32. 4
  33. 13
  34. 289
  35. 54
  36. 3
  37. 140
  38. 1800
  39. 11
  40. 14580

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