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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 69 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Which is closest to 798 × 78? (Round each number first.) (a) 640000 (b) 128000 (c) 6400 (d) 64000
  2. 2.Find the LCM of 12 and 54.
  3. 3.25% of a number is 4. What is the number?
  4. 4.Find the HCF of 48 and 42.
  5. 5.If 5 cricket balls cost ₹150, how much do 4 cricket balls cost (in ₹)?
  6. 6.What is the smallest number you must add to 225 so that it divides exactly by 13?
  7. 7.Find the LCM of 28 and 16.
  8. 8.Which is closest to 808 ÷ 19? (a) 40 (b) 80 (c) 400 (d) 20
  9. 9.Find the LCM of 30 and 18.
  10. 10.Find the HCF of 20 and 8.
  11. 11.A car goes 48 km on 6 litres of petrol. How far can it go on 39 litres (in km)?
  12. 12.1/6 of 72 + 6 × 5 =
  13. 13.(3 + 16) × 8 − 21 =
  14. 14.Find the LCM of 7 and 2.
  15. 15.Find the LCM of 11, 4 and 5.
  16. 16.A hall floor is 420 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  17. 17.80% of a number is 84. What is the number?
  18. 18.Round 81804 to the nearest hundred.
  19. 19.Which of these numbers divides exactly by 4? (a) 6079 (b) 1562 (c) 9650 (d) 6296
  20. 20.Two tanks hold 270 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.What is the smallest number you must take away from 717 so that it divides exactly by 13?
  22. 22.48 ÷ 4 × 5 + 15 =
  23. 23.Which of these numbers divides exactly by 4? (a) 7223 (b) 1984 (c) 5677 (d) 9407
  24. 24.What is 1/2 of 52 litres?
  25. 25.Sneha scored 36 marks out of 50 in a test. What percentage did Sneha score?
  26. 26.Find the HCF of 4 and 6.
  27. 27.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 4, 9 or 3.
  28. 28.A car goes 50 km on 2 litres of petrol. How far can it go on 13 litres (in km)?
  29. 29.If 10 notebooks cost ₹150, how much do 9 notebooks cost (in ₹)?
  30. 30.6.5 × 3 =
  31. 31.What is the smallest number you must add to 406 so that it divides exactly by 9?
  32. 32.Find the LCM of 6 and 10.
  33. 33.What is 1/2 of 30 kg?
  34. 34.12 : 4 = 60 : ?
  35. 35.1/2 + 1/3 =
  36. 36.Find the LCM of 45 and 10.
  37. 37.Find the HCF of 30 and 80.
  38. 38.Find the LCM of 10, 7 and 5.
  39. 39.Find the LCM of 14, 8 and 3.
  40. 40.2/4 + 5/12 =

Answer key

  1. 64000
  2. 108
  3. 16
  4. 6
  5. 120
  6. 9
  7. 112
  8. 40
  9. 90
  10. 4
  11. 312
  12. 42
  13. 131
  14. 14
  15. 220
  16. 28
  17. 105
  18. 81800
  19. 6296
  20. 30
  21. 2
  22. 75
  23. 1984
  24. 26
  25. 72
  26. 2
  27. 38
  28. 325
  29. 135
  30. 19.5
  31. 8
  32. 30
  33. 15
  34. 20
  35. 5/6
  36. 90
  37. 10
  38. 70
  39. 168
  40. 11/12

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