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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 36 · 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.Find the smallest number bigger than 12 that leaves a remainder of 7 when divided by 9, 8 or 12.
  2. 2.Divide ₹66 between Kavya and Vivaan in the ratio 5 : 6. How much does Vivaan get (in ₹)?
  3. 3.Round 57475 to the nearest thousand.
  4. 4.Which is closest to 205 + 498 + 503? (a) 1100 (b) 1300 (c) 1200 (d) 1400
  5. 5.Three temple bells ring every 6, 10 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Two tanks hold 140 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  7. 7.Find the LCM of 15 and 6.
  8. 8.What percent of 20 is 1?
  9. 9.Find the LCM of 10 and 12.
  10. 10.12 painters can paint a school in 28 days. How many days would 7 painters take, working at the same speed?
  11. 11.How many factors does 79 have?
  12. 12.Which is closest to 897 + 101 + 397? (a) 1500 (b) 1600 (c) 1400 (d) 1300
  13. 13.Which is closest to 903 × 29? (Round each number first.) (a) 270000 (b) 27000 (c) 54000 (d) 2700
  14. 14.7/10 − 2/8 =
  15. 15.The ratio of boys to girls in a class is 6 : 7. There are 12 boys. How many girls are there?
  16. 16.2/3 of 33 + 9 × 4 =
  17. 17.Divide ₹572 between Ananya and Pooja in the ratio 5 : 8. How much does Ananya get (in ₹)?
  18. 18.What percent of 80 is 36?
  19. 19.Find the LCM of 10, 3 and 5.
  20. 20.Three temple bells ring every 24, 10 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.If 6 kg of rice costs ₹120, how many kg can you buy for ₹220?
  22. 22.3 × (25 − 18) + 80 ÷ 8 =
  23. 23.Find the HCF of 88 and 33.
  24. 24.Find the HCF of 12 and 10.
  25. 25.11 : 5 = 22 : ?
  26. 26.Write 17/50 as a percent.
  27. 27.What is the smallest number you must take away from 557 so that it divides exactly by 4?
  28. 28.Kabir takes 72 seconds and Isha takes 48 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?
  29. 29.Find the HCF of 60 and 48.
  30. 30.If 8 notebooks cost ₹208, how much do 18 notebooks cost (in ₹)?
  31. 31.If 8 kg of rice costs ₹400, how many kg can you buy for ₹350?
  32. 32.9 × (16 − 2) + 24 ÷ 2 =
  33. 33.Find the LCM of 14 and 18.
  34. 34.(17 + 9) × 8 − 29 =
  35. 35.What percent of 40 is 26?
  36. 36.Which is closest to 503 × 91? (Round each number first.) (a) 4500 (b) 450000 (c) 45000 (d) 90000
  37. 37.66 ÷ 6 × 6 + 5 =
  38. 38.5 : 3 = 40 : ?
  39. 39.Find the LCM of 6 and 4.
  40. 40.11 : 3 = 44 : ?

Answer key

  1. 79
  2. 36
  3. 57000
  4. 1200
  5. 30
  6. 20
  7. 30
  8. 5
  9. 60
  10. 48
  11. 2
  12. 1400
  13. 27000
  14. 9/20
  15. 14
  16. 58
  17. 220
  18. 45
  19. 30
  20. 120
  21. 11
  22. 31
  23. 11
  24. 2
  25. 10
  26. 34
  27. 1
  28. 144
  29. 12
  30. 468
  31. 7
  32. 138
  33. 126
  34. 179
  35. 65
  36. 45000
  37. 71
  38. 24
  39. 12
  40. 12

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