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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 588 · 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. 1.1/5 of 20 + 7 × 8 =
  2. 2.Two tanks hold 80 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.62.1 ÷ 9 =
  4. 4.1/3 of 27 + 7 × 5 =
  5. 5.Round 95.89 to one decimal place. =
  6. 6.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  7. 7.1/7 × 6/8 =
  8. 8.Write 3/4 as a percent.
  9. 9.Which is closest to 800 ÷ 41? (a) 200 (b) 40 (c) 10 (d) 20
  10. 10.A car goes 216 km on 12 litres of petrol. How far can it go on 36 litres (in km)?
  11. 11.What is the smallest number you must take away from 999 so that it divides exactly by 4?
  12. 12.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 6, 12 or 8.
  13. 13.The ratio of boys to girls in a class is 3 : 1. There are 9 boys. How many girls are there?
  14. 14.A car goes 33 km on 3 litres of petrol. How far can it go on 30 litres (in km)?
  15. 15.What is the smallest number you must add to 125 so that it divides exactly by 8?
  16. 16.Three temple bells ring every 9, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.7/9 − 3/6 =
  18. 18.Write 1/2 as a percent.
  19. 19.Find the LCM of 15, 3 and 14.
  20. 20.Which of these numbers divides exactly by 3? (a) 4257 (b) 6293 (c) 9574 (d) 1871
  21. 21.Kabir scored 13 marks out of 20 in a test. What percentage did Kabir score?
  22. 22.72 − 36 ÷ 9 × 8 =
  23. 23.6.85 + 1.4 =
  24. 24.8.26 + 7.5 =
  25. 25.If 6 kg of rice costs ₹408, how many kg can you buy for ₹544?
  26. 26.Find the LCM of 21 and 9.
  27. 27.Find the smallest number bigger than 6 that leaves a remainder of 3 when divided by 5, 6 or 4.
  28. 28.Three temple bells ring every 6, 20 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.10 + 3 × 2 − 4 =
  30. 30.9.2 × 7 =
  31. 31.Which is closest to 600 × 51? (Round each number first.) (a) 60000 (b) 300000 (c) 30000 (d) 3000
  32. 32.Divide ₹230 between Kabir and Zoya in the ratio 9 : 1. How much does Zoya get (in ₹)?
  33. 33.2/11 − 1/6 =
  34. 34.A hall floor is 160 cm long and 140 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.Write 43/50 as a percent.
  36. 36.What is the smallest number you must add to 452 so that it divides exactly by 7?
  37. 37.If 2 kg of rice costs ₹78, how many kg can you buy for ₹507?
  38. 38.2 × (22 − 1) + 15 ÷ 3 =
  39. 39.Find the HCF of 15 and 40.
  40. 40.6.3 × 2 =

Answer key

  1. 60
  2. 40
  3. 6.9
  4. 44
  5. 95.9
  6. 128
  7. 3/28
  8. 75
  9. 20
  10. 648
  11. 3
  12. 26
  13. 3
  14. 330
  15. 3
  16. 45
  17. 5/18
  18. 50
  19. 210
  20. 4257
  21. 65
  22. 40
  23. 8.25
  24. 15.76
  25. 8
  26. 63
  27. 63
  28. 60
  29. 12
  30. 64.4
  31. 30000
  32. 23
  33. 1/66
  34. 56
  35. 86
  36. 3
  37. 13
  38. 47
  39. 5
  40. 12.6

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