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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 315 · 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 76.73 to one decimal place. =
  2. 2.12 + 5 × 7 − 4 =
  3. 3.8/9 of 99 + 4 × 7 =
  4. 4.13 ÷ 5 =
  5. 5.What is 1/2 of 36 kg?
  6. 6.Divide ₹780 between Arjun and Rahul in the ratio 8 : 5. How much does Rahul get (in ₹)?
  7. 7.2.38 + 8.2 =
  8. 8.Round 40988 to the nearest thousand.
  9. 9.28 − 6 ÷ 2 × 8 =
  10. 10.10 : 4 = 90 : ?
  11. 11.What is 1/8 of ₹24?
  12. 12.Round 42.73 to one decimal place. =
  13. 13.Write 1/10 as a percent.
  14. 14.1/2 × 3/8 =
  15. 15.The HCF of two numbers is 3 and their LCM is 54. One of the numbers is 27. What is the other number?
  16. 16.1/3 of 36 + 5 × 6 =
  17. 17.Which is closest to 300 × 22? (Round each number first.) (a) 600 (b) 60000 (c) 12000 (d) 6000
  18. 18.Find the HCF of 15 and 18.
  19. 19.1/3 × 2/7 =
  20. 20.Farhan scored 60 marks out of 80 in a test. What percentage did Farhan score?
  21. 21.12% of a number is 12. What is the number?
  22. 22.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  23. 23.The ratio of boys to girls in a class is 1 : 7. There are 4 boys. How many girls are there?
  24. 24.35 ÷ 5 × 3 + 14 =
  25. 25.Rahul takes 40 seconds and Pooja takes 50 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?
  26. 26.What is 1/6 of ₹138?
  27. 27.Round 83579 to the nearest hundred.
  28. 28.What is 5% of 80?
  29. 29.Saanvi takes 50 seconds and Meera takes 40 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?
  30. 30.Round 80925 to the nearest thousand.
  31. 31.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 10, 15 or 3.
  32. 32.Round 54161 to the nearest ten.
  33. 33.Three temple bells ring every 12, 30 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.What is the smallest number you must take away from 933 so that it divides exactly by 8?
  35. 35.Find the HCF of 65 and 26.
  36. 36.A car goes 200 km on 8 litres of petrol. How far can it go on 11 litres (in km)?
  37. 37.Round 24.82 to one decimal place. =
  38. 38.How many factors does 84 have?
  39. 39.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  40. 40.Three temple bells ring every 15, 6 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 76.7
  2. 43
  3. 116
  4. 2.6
  5. 18
  6. 300
  7. 10.58
  8. 41000
  9. 4
  10. 36
  11. 3
  12. 42.7
  13. 10
  14. 3/16
  15. 6
  16. 42
  17. 6000
  18. 3
  19. 2/21
  20. 75
  21. 100
  22. 28
  23. 28
  24. 35
  25. 200
  26. 23
  27. 83600
  28. 4
  29. 200
  30. 81000
  31. 31
  32. 54160
  33. 60
  34. 5
  35. 13
  36. 275
  37. 24.8
  38. 12
  39. 32
  40. 60

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