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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 714 · 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. 1.3/4 of 24 + 5 × 7 =
  2. 2.24 + 8 × 11 − 24 =
  3. 3.Find the HCF of 75 and 135.
  4. 4.What percent of 40 is 32?
  5. 5.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 12, 3 or 15.
  6. 6.Find the HCF of 30 and 42.
  7. 7.What is 20% of 480?
  8. 8.Which is closest to 501 + 195 + 897? (a) 1700 (b) 1600 (c) 1500 (d) 1800
  9. 9.What is the smallest number you must take away from 390 so that it divides exactly by 8?
  10. 10.If 8 kites cost ₹136, how much do 13 kites cost (in ₹)?
  11. 11.Find the HCF of 30 and 35.
  12. 12.(13 + 14) × 8 − 27 =
  13. 13.16 + 11 × 2 − 6 =
  14. 14.The ratio of boys to girls in a class is 8 : 3. There are 32 boys. How many girls are there?
  15. 15.6.45 + 1.9 =
  16. 16.What is 1/5 of 10 km?
  17. 17.A hall floor is 200 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.1/2 + 6/8 =
  19. 19.Round 52.43 to one decimal place. =
  20. 20.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 5 or 3.
  21. 21.Three temple bells ring every 8, 20 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Write 3/10 as a percent.
  23. 23.What is the smallest number you must take away from 668 so that it divides exactly by 9?
  24. 24.What is 30% of 180?
  25. 25.Round 49.51 to one decimal place. =
  26. 26.Three temple bells ring every 4, 10 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Find the HCF of 49 and 56.
  28. 28.What is the smallest number you must take away from 371 so that it divides exactly by 4?
  29. 29.Round 81991 to the nearest hundred.
  30. 30.2.1 × 2 =
  31. 31.1/2 + 2/4 =
  32. 32.What is 150% of 214?
  33. 33.46.9 ÷ 7 =
  34. 34.How many factors does 100 have?
  35. 35.Find the third proportional to 7 and 21 (that is, 7 : 21 = 21 : ?).
  36. 36.How many factors does 58 have?
  37. 37.(19 + 5) × 7 − 5 =
  38. 38.If 5 kg of rice costs ₹155, how many kg can you buy for ₹62?
  39. 39.A car goes 132 km on 11 litres of petrol. How far can it go on 29 litres (in km)?
  40. 40.12 painters can paint a school in 5 days. How many days would 15 painters take, working at the same speed?

Answer key

  1. 53
  2. 88
  3. 15
  4. 80
  5. 61
  6. 6
  7. 96
  8. 1600
  9. 6
  10. 221
  11. 5
  12. 189
  13. 32
  14. 12
  15. 8.35
  16. 2
  17. 15
  18. 5/4
  19. 52.4
  20. 16
  21. 120
  22. 30
  23. 2
  24. 54
  25. 49.5
  26. 20
  27. 7
  28. 3
  29. 82000
  30. 4.2
  31. 1
  32. 321
  33. 6.7
  34. 9
  35. 63
  36. 4
  37. 163
  38. 2
  39. 348
  40. 4

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