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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 893 · 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. 1.5.7 × 9 =
  2. 2.8.2 × 8 =
  3. 3.31 − 36 ÷ 6 × 4 =
  4. 4.Which is closest to 902 × 61? (Round each number first.) (a) 108000 (b) 5400 (c) 54000 (d) 540000
  5. 5.(14 + 10) × 2 − 20 =
  6. 6.4 : 8 = 12 : ?
  7. 7.40 ÷ 4 × 5 + 28 =
  8. 8.Find the HCF of 117 and 26.
  9. 9.Find the LCM of 18 and 10.
  10. 10.Find the LCM of 12 and 20.
  11. 11.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 3, 12 or 4.
  12. 12.10 : 7 = 50 : ?
  13. 13.Manav scored 8 marks out of 80 in a test. What percentage did Manav score?
  14. 14.3 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  15. 15.Find the HCF of 30 and 45.
  16. 16.If 6 notebooks cost ₹234, how much do 17 notebooks cost (in ₹)?
  17. 17.7/8 of 72 + 5 × 6 =
  18. 18.Two tanks hold 140 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.Find the LCM of 10 and 8.
  20. 20.1/7 of 77 + 9 × 9 =
  21. 21.Which is closest to 296 × 90? (Round each number first.) (a) 54000 (b) 270000 (c) 2700 (d) 27000
  22. 22.Dev scored 4 marks out of 25 in a test. What percentage did Dev score?
  23. 23.Find the LCM of 13, 2 and 6.
  24. 24.What percent of 200 is 168?
  25. 25.23 − 6 ÷ 3 × 9 =
  26. 26.Which is closest to 596 × 21? (Round each number first.) (a) 1200 (b) 120000 (c) 12000 (d) 24000
  27. 27.2/3 of 6 + 5 × 8 =
  28. 28.Rohan takes 30 seconds and Aditya 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?
  29. 29.Which of these numbers divides exactly by 4? (a) 6160 (b) 9247 (c) 6249 (d) 5431
  30. 30.A car goes 88 km on 4 litres of petrol. How far can it go on 35 litres (in km)?
  31. 31.25% of a number is 38. What is the number?
  32. 32.Round 92861 to the nearest hundred.
  33. 33.Find the LCM of 5, 12 and 9.
  34. 34.What is 1/4 of 32 students?
  35. 35.What is the smallest number you must add to 990 so that it divides exactly by 4?
  36. 36.(2 + 7) × 8 − 24 =
  37. 37.2/4 − 1/5 =
  38. 38.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 8, 10 or 5.
  39. 39.Which is closest to 298 × 79? (Round each number first.) (a) 24000 (b) 2400 (c) 48000 (d) 240000
  40. 40.Write 1/2 as a percent.

Answer key

  1. 51.3
  2. 65.6
  3. 7
  4. 54000
  5. 28
  6. 24
  7. 78
  8. 13
  9. 90
  10. 60
  11. 13
  12. 35
  13. 10
  14. 3
  15. 15
  16. 663
  17. 93
  18. 20
  19. 40
  20. 92
  21. 27000
  22. 16
  23. 78
  24. 84
  25. 5
  26. 12000
  27. 44
  28. 150
  29. 6160
  30. 770
  31. 152
  32. 92900
  33. 180
  34. 8
  35. 2
  36. 48
  37. 3/10
  38. 41
  39. 24000
  40. 50

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