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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 459 · 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 47 have?
  2. 2.2 × (19 − 4) + 25 ÷ 5 =
  3. 3.7 × (30 − 20) + 48 ÷ 4 =
  4. 4.Round 91.61 to one decimal place. =
  5. 5.Which of these numbers divides exactly by 3? (a) 9336 (b) 7373 (c) 3359 (d) 5036
  6. 6.36 − 12 ÷ 3 × 7 =
  7. 7.6/9 + 2/5 =
  8. 8.Find the LCM of 7, 8 and 4.
  9. 9.Find the HCF of 39 and 52.
  10. 10.What is 25% of 348?
  11. 11.What is 1/6 of 120 kg?
  12. 12.Which is closest to 1802 ÷ 31? (a) 30 (b) 600 (c) 120 (d) 60
  13. 13.The HCF of two numbers is 3 and their LCM is 36. One of the numbers is 12. What is the other number?
  14. 14.A hostel has enough food for 8 students for 20 days. How many days will the same food last for 10 students?
  15. 15.Round 73.17 to one decimal place. =
  16. 16.9.46 + 2.9 =
  17. 17.Rohan takes 30 seconds and Kavya takes 72 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?
  18. 18.What percent of 40 is 2?
  19. 19.3.8 × 3 =
  20. 20.Three temple bells ring every 5, 20 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 4 or 6.
  22. 22.21 + 3 × 6 − 14 =
  23. 23.What is 1/5 of 35 students?
  24. 24.How many factors does 44 have?
  25. 25.Which is closest to 1600 ÷ 41? (a) 40 (b) 80 (c) 20 (d) 400
  26. 26.If 10 pens cost ₹360, how much do 16 pens cost (in ₹)?
  27. 27.What percent of 250 is 185?
  28. 28.What is the smallest number you must add to 517 so that it divides exactly by 3?
  29. 29.Which is closest to 397 × 19? (Round each number first.) (a) 80000 (b) 8000 (c) 16000 (d) 800
  30. 30.If 6 kg of rice costs ₹264, how many kg can you buy for ₹396?
  31. 31.If 12 notebooks cost ₹552, how much do 17 notebooks cost (in ₹)?
  32. 32.Two tanks hold 150 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.Find the LCM of 4, 7 and 2.
  34. 34.What is the smallest number you must take away from 205 so that it divides exactly by 7?
  35. 35.5/6 − 1/10 =
  36. 36.3 × (19 − 3) + 30 ÷ 5 =
  37. 37.What percent of 50 is 37?
  38. 38.56.7 ÷ 9 =
  39. 39.Three temple bells ring every 6, 18 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.Round 21.42 to one decimal place. =

Answer key

  1. 2
  2. 35
  3. 82
  4. 91.6
  5. 9336
  6. 8
  7. 16/15
  8. 56
  9. 13
  10. 87
  11. 20
  12. 60
  13. 9
  14. 16
  15. 73.2
  16. 12.36
  17. 360
  18. 5
  19. 11.4
  20. 60
  21. 62
  22. 25
  23. 7
  24. 6
  25. 40
  26. 576
  27. 74
  28. 2
  29. 8000
  30. 9
  31. 782
  32. 50
  33. 28
  34. 2
  35. 11/15
  36. 54
  37. 74
  38. 6.3
  39. 36
  40. 21.4

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