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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 15 · 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.How many factors does 97 have?
  2. 2.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 3, 5 or 6.
  3. 3.What is the smallest number you must add to 166 so that it divides exactly by 8?
  4. 4.The ratio of boys to girls in a class is 4 : 3. There are 40 boys. How many girls are there?
  5. 5.Which of these numbers divides exactly by 9? (a) 9712 (b) 9027 (c) 9375 (d) 4720
  6. 6.30 − 35 ÷ 5 × 4 =
  7. 7.Three temple bells ring every 12, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.What is 50% of 130?
  9. 9.If 3 kg of rice costs ₹138, how many kg can you buy for ₹690?
  10. 10.What is the smallest number you must take away from 314 so that it divides exactly by 4?
  11. 11.Round 49.08 to one decimal place. =
  12. 12.What percent of 200 is 86?
  13. 13.Farhan scored 21 marks out of 25 in a test. What percentage did Farhan score?
  14. 14.Round 18.63 to one decimal place. =
  15. 15.Write 1/5 as a percent.
  16. 16.Which is closest to 802 ÷ 19? (a) 80 (b) 20 (c) 40 (d) 400
  17. 17.Round 28243 to the nearest ten.
  18. 18.Find the HCF of 81 and 72.
  19. 19.Which is closest to 796 × 80? (Round each number first.) (a) 6400 (b) 128000 (c) 64000 (d) 640000
  20. 20.Isha takes 30 seconds and Saanvi takes 54 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?
  21. 21.49.2 ÷ 6 =
  22. 22.Round 93849 to the nearest thousand.
  23. 23.What is 2/9 of 144 km?
  24. 24.What is the smallest number you must take away from 236 so that it divides exactly by 6?
  25. 25.If 8 kg of rice costs ₹528, how many kg can you buy for ₹264?
  26. 26.1.04 + 6.7 =
  27. 27.What is 1/4 of 104 km?
  28. 28.Which of these numbers divides exactly by 6? (a) 8673 (b) 1317 (c) 5058 (d) 4741
  29. 29.Which is closest to 602 × 32? (Round each number first.) (a) 180000 (b) 1800 (c) 18000 (d) 36000
  30. 30.If 9 notebooks cost ₹171, how much do 6 notebooks cost (in ₹)?
  31. 31.Find the HCF of 16 and 20.
  32. 32.Find the HCF of 60 and 75.
  33. 33.What is 50% of 332?
  34. 34.What is the smallest number you must add to 268 so that it divides exactly by 11?
  35. 35.Which is closest to 792 ÷ 19? (a) 20 (b) 80 (c) 400 (d) 40
  36. 36.How many factors does 66 have?
  37. 37.17.4 ÷ 2 =
  38. 38.The HCF of two numbers is 4 and their LCM is 180. One of the numbers is 36. What is the other number?
  39. 39.Round 70.29 to one decimal place. =
  40. 40.14 ÷ 7 × 2 + 24 =

Answer key

  1. 2
  2. 31
  3. 2
  4. 30
  5. 9027
  6. 2
  7. 60
  8. 65
  9. 15
  10. 2
  11. 49.1
  12. 43
  13. 84
  14. 18.6
  15. 20
  16. 40
  17. 28240
  18. 9
  19. 64000
  20. 270
  21. 8.2
  22. 94000
  23. 32
  24. 2
  25. 4
  26. 7.74
  27. 26
  28. 5058
  29. 18000
  30. 114
  31. 4
  32. 15
  33. 166
  34. 7
  35. 40
  36. 8
  37. 8.7
  38. 20
  39. 70.3
  40. 28

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