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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 745 · 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.Round 93.33 to one decimal place. =
  2. 2.Which is closest to 302 × 89? (Round each number first.) (a) 270000 (b) 54000 (c) 2700 (d) 27000
  3. 3.A car goes 72 km on 6 litres of petrol. How far can it go on 8 litres (in km)?
  4. 4.7 × (10 − 1) + 10 ÷ 2 =
  5. 5.What is the smallest number you must add to 118 so that it divides exactly by 11?
  6. 6.Find the HCF of 21 and 9.
  7. 7.A hall floor is 225 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.Find the LCM of 10, 2 and 4.
  9. 9.Which of these numbers divides exactly by 3? (a) 2194 (b) 4480 (c) 1459 (d) 5775
  10. 10.What percent of 400 is 92?
  11. 11.How many factors does 66 have?
  12. 12.Manav takes 60 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?
  13. 13.If 4 kg of rice costs ₹228, how many kg can you buy for ₹114?
  14. 14.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 4 or 6.
  15. 15.1/3 of 24 + 2 × 4 =
  16. 16.Which is closest to 199 × 90? (Round each number first.) (a) 18000 (b) 36000 (c) 180000 (d) 1800
  17. 17.Write 1/2 as a percent.
  18. 18.What is the smallest number you must add to 149 so that it divides exactly by 6?
  19. 19.8.84 + 8.9 =
  20. 20.(17 + 15) × 3 − 6 =
  21. 21.Find the HCF of 35 and 28.
  22. 22.What is 15% of 60?
  23. 23.The HCF of two numbers is 4 and their LCM is 84. One of the numbers is 28. What is the other number?
  24. 24.Arjun takes 90 seconds and Ananya takes 36 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?
  25. 25.What is the smallest number you must add to 294 so that it divides exactly by 13?
  26. 26.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 9, 5 or 15.
  27. 27.Write 31/50 as a percent.
  28. 28.What is 4/5 of 10 litres?
  29. 29.Find the LCM of 9, 14 and 7.
  30. 30.What percent of 200 is 62?
  31. 31.The HCF of two numbers is 9 and their LCM is 135. One of the numbers is 45. What is the other number?
  32. 32.A car goes 108 km on 9 litres of petrol. How far can it go on 40 litres (in km)?
  33. 33.How many factors does 63 have?
  34. 34.Which is closest to 496 + 801 + 903? (a) 2100 (b) 2300 (c) 2400 (d) 2200
  35. 35.Round 83223 to the nearest ten.
  36. 36.Divide ₹266 between Pooja and Aarav in the ratio 5 : 2. How much does Pooja get (in ₹)?
  37. 37.What is the smallest number you must add to 324 so that it divides exactly by 13?
  38. 38.If 7 kg of rice costs ₹385, how many kg can you buy for ₹165?
  39. 39.20 ÷ 2 × 4 + 30 =
  40. 40.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 9, 3 or 10.

Answer key

  1. 93.3
  2. 27000
  3. 96
  4. 68
  5. 3
  6. 3
  7. 20
  8. 20
  9. 5775
  10. 23
  11. 8
  12. 360
  13. 2
  14. 62
  15. 16
  16. 18000
  17. 50
  18. 1
  19. 17.74
  20. 90
  21. 7
  22. 9
  23. 12
  24. 180
  25. 5
  26. 46
  27. 62
  28. 8
  29. 126
  30. 31
  31. 27
  32. 480
  33. 6
  34. 2200
  35. 83220
  36. 190
  37. 1
  38. 3
  39. 70
  40. 91

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