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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 280 · 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.What is 1/5 of 30 students?
  2. 2.Two tanks hold 100 litres and 180 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.6/11 + 1/2 =
  4. 4.Which of these numbers divides exactly by 3? (a) 8262 (b) 6043 (c) 8683 (d) 6040
  5. 5.Three temple bells ring every 10, 5 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Find the HCF of 64 and 24.
  7. 7.1.83 + 6.6 =
  8. 8.9.64 + 7.3 =
  9. 9.2 × (10 − 2) + 54 ÷ 9 =
  10. 10.Divide ₹196 between Saanvi and Aarav in the ratio 5 : 2. How much does Aarav get (in ₹)?
  11. 11.72 ÷ 9 × 5 + 12 =
  12. 12.10 : 14 = 60 : ?
  13. 13.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 6, 8 or 5.
  14. 14.4 painters can paint a school in 28 days. How many days would 2 painters take, working at the same speed?
  15. 15.What is the smallest number you must take away from 116 so that it divides exactly by 13?
  16. 16.A hostel has enough food for 6 students for 9 days. How many days will the same food last for 2 students?
  17. 17.Round 12.71 to one decimal place. =
  18. 18.8.3 × 5 =
  19. 19.19 + 11 × 5 − 9 =
  20. 20.What is 5% of 500?
  21. 21.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.A car goes 42 km on 3 litres of petrol. How far can it go on 30 litres (in km)?
  23. 23.What is the smallest number you must add to 722 so that it divides exactly by 11?
  24. 24.Round 68.43 to one decimal place. =
  25. 25.What is 9/10 of 220 kg?
  26. 26.Which of these numbers divides exactly by 11? (a) 3966 (b) 1204 (c) 4831 (d) 9372
  27. 27.6/8 + 5/12 =
  28. 28.What is the smallest number you must add to 842 so that it divides exactly by 9?
  29. 29.How many factors does 96 have?
  30. 30.Find the LCM of 2, 13 and 9.
  31. 31.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 3, 5 or 9.
  32. 32.Find the LCM of 36 and 28.
  33. 33.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 4, 5 or 12.
  34. 34.Find the smallest number bigger than 12 that leaves a remainder of 7 when divided by 8, 12 or 10.
  35. 35.Find the HCF of 20 and 15.
  36. 36.Find the HCF of 60 and 24.
  37. 37.What is the smallest number you must add to 333 so that it divides exactly by 6?
  38. 38.Find the LCM of 5, 10 and 9.
  39. 39.41 + 8 × 11 − 12 =
  40. 40.1/3 + 2/10 =

Answer key

  1. 6
  2. 20
  3. 23/22
  4. 8262
  5. 40
  6. 8
  7. 8.43
  8. 16.94
  9. 22
  10. 56
  11. 52
  12. 84
  13. 121
  14. 56
  15. 12
  16. 27
  17. 12.7
  18. 41.5
  19. 65
  20. 25
  21. 21
  22. 420
  23. 4
  24. 68.4
  25. 198
  26. 9372
  27. 7/6
  28. 4
  29. 12
  30. 234
  31. 46
  32. 252
  33. 61
  34. 127
  35. 5
  36. 12
  37. 3
  38. 90
  39. 117
  40. 8/15

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