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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 772 · 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 11.61 to one decimal place. =
  2. 2.Which is closest to 201 × 22? (Round each number first.) (a) 8000 (b) 4000 (c) 40000 (d) 400
  3. 3.15.6 ÷ 3 =
  4. 4.Round 36.61 to one decimal place. =
  5. 5.Find the LCM of 9 and 2.
  6. 6.7 : 3 = 21 : ?
  7. 7.Divide ₹222 between Arjun and Kabir in the ratio 1 : 5. How much does Kabir get (in ₹)?
  8. 8.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 5 or 4.
  9. 9.How many factors does 100 have?
  10. 10.What is the smallest number you must take away from 262 so that it divides exactly by 4?
  11. 11.Write 7/10 as a percent.
  12. 12.Which of these numbers divides exactly by 4? (a) 9322 (b) 9341 (c) 7248 (d) 2473
  13. 13.Find the HCF of 18 and 24.
  14. 14.2 painters can paint a school in 25 days. How many days would 10 painters take, working at the same speed?
  15. 15.Which of these numbers divides exactly by 8? (a) 4710 (b) 2133 (c) 8088 (d) 8686
  16. 16.Write 1/2 as a percent.
  17. 17.Two tanks hold 400 litres and 250 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.26 + 5 × 3 − 9 =
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 8, 15 or 3.
  20. 20.Find the HCF of 44 and 77.
  21. 21.Which is closest to 799 ÷ 19? (a) 400 (b) 80 (c) 40 (d) 20
  22. 22.7 : 10 = 28 : ?
  23. 23.Write 19/20 as a percent.
  24. 24.2/10 × 3/11 =
  25. 25.The ratio of boys to girls in a class is 9 : 2. There are 27 boys. How many girls are there?
  26. 26.Which of these numbers divides exactly by 9? (a) 9045 (b) 8065 (c) 5860 (d) 7166
  27. 27.A car goes 80 km on 4 litres of petrol. How far can it go on 29 litres (in km)?
  28. 28.Write 3/4 as a percent.
  29. 29.Find the HCF of 14 and 63.
  30. 30.Find the LCM of 13, 4 and 3.
  31. 31.Three temple bells ring every 8, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.8/12 − 1/4 =
  33. 33.24 ÷ 6 × 7 + 13 =
  34. 34.What is 1/7 of ₹126?
  35. 35.3/4 − 2/6 =
  36. 36.6 × (28 − 16) + 77 ÷ 7 =
  37. 37.1/3 of 12 + 2 × 2 =
  38. 38.35.4 ÷ 6 =
  39. 39.15 ÷ 5 × 4 + 24 =
  40. 40.Two tanks hold 210 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 11.6
  2. 4000
  3. 5.2
  4. 36.6
  5. 18
  6. 9
  7. 185
  8. 61
  9. 9
  10. 2
  11. 70
  12. 7248
  13. 6
  14. 5
  15. 8088
  16. 50
  17. 50
  18. 32
  19. 122
  20. 11
  21. 40
  22. 40
  23. 95
  24. 3/55
  25. 6
  26. 9045
  27. 580
  28. 75
  29. 7
  30. 156
  31. 120
  32. 5/12
  33. 41
  34. 18
  35. 5/12
  36. 83
  37. 8
  38. 5.9
  39. 36
  40. 30

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