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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 113 · 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.Round 22.37 to one decimal place. =
  2. 2.Tara takes 80 seconds and Karan takes 60 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  3. 3.1/3 of 6 + 2 × 6 =
  4. 4.Which is closest to 203 × 62? (Round each number first.) (a) 1200 (b) 12000 (c) 24000 (d) 120000
  5. 5.Two tanks hold 160 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.The ratio of boys to girls in a class is 1 : 4. There are 7 boys. How many girls are there?
  7. 7.A car goes 99 km on 11 litres of petrol. How far can it go on 34 litres (in km)?
  8. 8.Which is closest to 696 + 705 + 402? (a) 2000 (b) 1800 (c) 1900 (d) 1700
  9. 9.What percent of 20 is 11?
  10. 10.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 3, 4 or 8.
  11. 11.Find the LCM of 11, 3 and 15.
  12. 12.If 4 kites cost ₹40, how much do 2 kites cost (in ₹)?
  13. 13.12% of a number is 60. What is the number?
  14. 14.What is the smallest number you must take away from 735 so that it divides exactly by 6?
  15. 15.Which is closest to 803 × 30? (Round each number first.) (a) 240000 (b) 24000 (c) 2400 (d) 48000
  16. 16.Which is closest to 700 × 51? (Round each number first.) (a) 70000 (b) 350000 (c) 3500 (d) 35000
  17. 17.8 − 18 ÷ 6 × 2 =
  18. 18.Find the HCF of 117 and 52.
  19. 19.A car goes 24 km on 3 litres of petrol. How far can it go on 24 litres (in km)?
  20. 20.Nisha scored 7 marks out of 20 in a test. What percentage did Nisha score?
  21. 21.Two tanks hold 15 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.2/6 + 6/8 =
  23. 23.Three temple bells ring every 5, 9 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.75 − 36 ÷ 4 × 8 =
  25. 25.9/10 − 4/7 =
  26. 26.5/7 of 42 + 4 × 8 =
  27. 27.What percent of 250 is 225?
  28. 28.Three temple bells ring every 8, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.A car goes 54 km on 3 litres of petrol. How far can it go on 16 litres (in km)?
  30. 30.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 3, 4 or 10.
  31. 31.What is 60% of 125?
  32. 32.Three temple bells ring every 20, 24 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.A hall floor is 240 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  34. 34.Round 26.22 to one decimal place. =
  35. 35.Which is closest to 1197 ÷ 19? (a) 30 (b) 120 (c) 60 (d) 600
  36. 36.What is 12% of 525?
  37. 37.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.7.7 × 3 =
  39. 39.Find the LCM of 18 and 24.
  40. 40.Write 3/4 as a percent.

Answer key

  1. 22.4
  2. 240
  3. 14
  4. 12000
  5. 40
  6. 28
  7. 306
  8. 1800
  9. 55
  10. 26
  11. 165
  12. 20
  13. 500
  14. 3
  15. 24000
  16. 35000
  17. 2
  18. 13
  19. 192
  20. 35
  21. 5
  22. 13/12
  23. 90
  24. 3
  25. 23/70
  26. 62
  27. 90
  28. 120
  29. 288
  30. 61
  31. 75
  32. 120
  33. 12
  34. 26.2
  35. 60
  36. 63
  37. 10
  38. 23.1
  39. 72
  40. 75

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