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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 648 · 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. 1.25% of a number is 149. What is the number?
  2. 2.8.1 × 2 =
  3. 3.Which is closest to 401 × 29? (Round each number first.) (a) 120000 (b) 1200 (c) 24000 (d) 12000
  4. 4.Round 21.29 to one decimal place. =
  5. 5.Find the HCF of 16 and 40.
  6. 6.5/6 − 8/12 =
  7. 7.8 : 5 = 56 : ?
  8. 8.Find the HCF of 48 and 36.
  9. 9.Find the LCM of 21 and 9.
  10. 10.Find the LCM of 24 and 30.
  11. 11.Meera scored 5 marks out of 25 in a test. What percentage did Meera score?
  12. 12.Round 66.92 to one decimal place. =
  13. 13.4 painters can paint a school in 5 days. How many days would 10 painters take, working at the same speed?
  14. 14.8 × (28 − 4) + 15 ÷ 3 =
  15. 15.Which is closest to 195 + 104 + 603? (a) 900 (b) 800 (c) 1100 (d) 1000
  16. 16.Which is closest to 1202 ÷ 39? (a) 60 (b) 300 (c) 30 (d) 15
  17. 17.Write 1/5 as a percent.
  18. 18.Two tanks hold 105 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.2 : 8 = 18 : ?
  20. 20.49 ÷ 7 × 7 + 30 =
  21. 21.50% of a number is 13. What is the number?
  22. 22.If 9 kg of rice costs ₹297, how many kg can you buy for ₹429?
  23. 23.Write 3/10 as a percent.
  24. 24.The HCF of two numbers is 9 and their LCM is 360. One of the numbers is 72. What is the other number?
  25. 25.1/5 × 2/3 =
  26. 26.39 + 6 × 9 − 7 =
  27. 27.What is 6/7 of ₹161?
  28. 28.12 : 8 = 84 : ?
  29. 29.What is the smallest number you must add to 765 so that it divides exactly by 4?
  30. 30.What is the smallest number you must take away from 439 so that it divides exactly by 8?
  31. 31.A car goes 80 km on 10 litres of petrol. How far can it go on 20 litres (in km)?
  32. 32.3/8 of 56 + 8 × 8 =
  33. 33.(8 + 5) × 2 − 21 =
  34. 34.2/3 × 4/12 =
  35. 35.Which of these numbers divides exactly by 4? (a) 2359 (b) 8183 (c) 4510 (d) 8960
  36. 36.Aditya scored 5 marks out of 20 in a test. What percentage did Aditya score?
  37. 37.A car goes 147 km on 7 litres of petrol. How far can it go on 25 litres (in km)?
  38. 38.What is the smallest number you must add to 260 so that it divides exactly by 9?
  39. 39.What is 50% of 508?
  40. 40.Round 6473 to the nearest hundred.

Answer key

  1. 596
  2. 16.2
  3. 12000
  4. 21.3
  5. 8
  6. 1/6
  7. 35
  8. 12
  9. 63
  10. 120
  11. 20
  12. 66.9
  13. 2
  14. 197
  15. 900
  16. 30
  17. 20
  18. 15
  19. 72
  20. 79
  21. 26
  22. 13
  23. 30
  24. 45
  25. 2/15
  26. 86
  27. 138
  28. 56
  29. 3
  30. 7
  31. 160
  32. 85
  33. 5
  34. 2/9
  35. 8960
  36. 25
  37. 525
  38. 1
  39. 254
  40. 6500

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