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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 208 · 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. 1.40 ÷ 8 × 3 + 13 =
  2. 2.What is 3/4 of 68 km?
  3. 3.4/6 × 2/4 =
  4. 4.Round 46.39 to one decimal place. =
  5. 5.8 painters can paint a school in 6 days. How many days would 12 painters take, working at the same speed?
  6. 6.How many factors does 71 have?
  7. 7.48 − 20 ÷ 5 × 2 =
  8. 8.Divide ₹649 between Ananya and Farhan in the ratio 9 : 2. How much does Ananya get (in ₹)?
  9. 9.Which is closest to 2507 ÷ 49? (a) 25 (b) 500 (c) 50 (d) 100
  10. 10.What is 1/3 of 54 km?
  11. 11.45 − 12 ÷ 6 × 4 =
  12. 12.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 5 or 4.
  13. 13.Two tanks hold 80 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.Round 49.62 to one decimal place. =
  15. 15.What is the smallest number you must add to 525 so that it divides exactly by 6?
  16. 16.3.75 + 7.4 =
  17. 17.5 painters can paint a school in 10 days. How many days would 10 painters take, working at the same speed?
  18. 18.How many factors does 84 have?
  19. 19.Which is closest to 298 × 42? (Round each number first.) (a) 24000 (b) 12000 (c) 120000 (d) 1200
  20. 20.Which of these numbers divides exactly by 4? (a) 5688 (b) 7019 (c) 3454 (d) 8993
  21. 21.Divide ₹340 between Vivaan and Diya in the ratio 9 : 8. How much does Diya get (in ₹)?
  22. 22.3.23 + 1.3 =
  23. 23.1.6 × 6 =
  24. 24.What is the smallest number you must add to 175 so that it divides exactly by 4?
  25. 25.39 − 12 ÷ 6 × 3 =
  26. 26.3/6 − 4/10 =
  27. 27.30% of a number is 171. What is the number?
  28. 28.The HCF of two numbers is 6 and their LCM is 126. One of the numbers is 18. What is the other number?
  29. 29.What is the smallest number you must add to 368 so that it divides exactly by 11?
  30. 30.A car goes 180 km on 10 litres of petrol. How far can it go on 18 litres (in km)?
  31. 31.1/4 × 2/3 =
  32. 32.What is the smallest number you must add to 307 so that it divides exactly by 6?
  33. 33.(13 + 19) × 6 − 20 =
  34. 34.6/10 + 8/9 =
  35. 35.What is the smallest number you must take away from 118 so that it divides exactly by 12?
  36. 36.A car goes 154 km on 7 litres of petrol. How far can it go on 38 litres (in km)?
  37. 37.Find the HCF of 8 and 6.
  38. 38.5 × (17 − 1) + 60 ÷ 5 =
  39. 39.How many factors does 19 have?
  40. 40.Find the LCM of 45 and 35.

Answer key

  1. 28
  2. 51
  3. 1/3
  4. 46.4
  5. 4
  6. 2
  7. 40
  8. 531
  9. 50
  10. 18
  11. 37
  12. 61
  13. 10
  14. 49.6
  15. 3
  16. 11.15
  17. 5
  18. 12
  19. 12000
  20. 5688
  21. 160
  22. 4.53
  23. 9.6
  24. 1
  25. 33
  26. 1/10
  27. 570
  28. 42
  29. 6
  30. 324
  31. 1/6
  32. 5
  33. 172
  34. 67/45
  35. 10
  36. 836
  37. 2
  38. 92
  39. 2
  40. 315

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