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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 293 · 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. 1.8 ÷ 2 × 6 + 13 =
  2. 2.Find the LCM of 2, 7 and 13.
  3. 3.Divide ₹546 between Saanvi and Kavya in the ratio 5 : 8. How much does Kavya get (in ₹)?
  4. 4.Find the LCM of 20 and 45.
  5. 5.If 7 kg of rice costs ₹231, how many kg can you buy for ₹165?
  6. 6.1/2 + 1/9 =
  7. 7.Which is closest to 704 × 29? (Round each number first.) (a) 21000 (b) 42000 (c) 2100 (d) 210000
  8. 8.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  9. 9.What is the smallest number you must add to 872 so that it divides exactly by 9?
  10. 10.Which is closest to 696 × 18? (Round each number first.) (a) 28000 (b) 1400 (c) 140000 (d) 14000
  11. 11.A hall floor is 420 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.If 9 pens cost ₹135, how much do 13 pens cost (in ₹)?
  13. 13.Round 75132 to the nearest ten.
  14. 14.2 painters can paint a school in 13 days. How many days would 13 painters take, working at the same speed?
  15. 15.What is the smallest number you must add to 182 so that it divides exactly by 11?
  16. 16.A car goes 33 km on 3 litres of petrol. How far can it go on 29 litres (in km)?
  17. 17.What is the smallest number you must add to 630 so that it divides exactly by 4?
  18. 18.3.82 + 2.8 =
  19. 19.What is the smallest number you must add to 137 so that it divides exactly by 9?
  20. 20.Kavya scored 76 marks out of 80 in a test. What percentage did Kavya score?
  21. 21.Find the smallest number bigger than 12 that leaves a remainder of 7 when divided by 8, 12 or 9.
  22. 22.17 + 12 × 6 − 3 =
  23. 23.A hall floor is 250 cm long and 200 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Find the LCM of 9, 3 and 6.
  25. 25.Find the HCF of 135 and 75.
  26. 26.Three temple bells ring every 20, 4 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Divide ₹164 between Nisha and Ananya in the ratio 3 : 1. How much does Ananya get (in ₹)?
  28. 28.Which is closest to 797 + 103 + 895? (a) 1700 (b) 1800 (c) 1900 (d) 2000
  29. 29.6/10 + 2/8 =
  30. 30.A car goes 180 km on 10 litres of petrol. How far can it go on 17 litres (in km)?
  31. 31.Find the LCM of 5, 6 and 4.
  32. 32.If 2 kg of rice costs ₹98, how many kg can you buy for ₹196?
  33. 33.Saanvi scored 9 marks out of 20 in a test. What percentage did Saanvi score?
  34. 34.3 : 4 = 6 : ?
  35. 35.36 − 4 ÷ 2 × 7 =
  36. 36.Which is closest to 400 + 702 + 901? (a) 2100 (b) 2000 (c) 1900 (d) 2200
  37. 37.How many factors does 86 have?
  38. 38.Which is closest to 696 × 72? (Round each number first.) (a) 490000 (b) 4900 (c) 49000 (d) 98000
  39. 39.A hall floor is 480 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  40. 40.48 + 12 × 5 − 43 =

Answer key

  1. 37
  2. 182
  3. 336
  4. 180
  5. 5
  6. 11/18
  7. 21000
  8. 27
  9. 1
  10. 14000
  11. 28
  12. 195
  13. 75130
  14. 2
  15. 5
  16. 319
  17. 2
  18. 6.62
  19. 7
  20. 95
  21. 79
  22. 86
  23. 20
  24. 18
  25. 15
  26. 60
  27. 41
  28. 1800
  29. 17/20
  30. 306
  31. 60
  32. 4
  33. 45
  34. 8
  35. 22
  36. 2000
  37. 4
  38. 49000
  39. 24
  40. 65

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