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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 250 · 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 57.59 to one decimal place. =
  2. 2.Which of these numbers divides exactly by 3? (a) 4199 (b) 8562 (c) 8557 (d) 3101
  3. 3.Write 3/20 as a percent.
  4. 4.2.2 × 9 =
  5. 5.Round 89241 to the nearest hundred.
  6. 6.If 4 cricket balls cost ₹44, how much do 15 cricket balls cost (in ₹)?
  7. 7.If 8 pencil boxes cost ₹416, how much do 10 pencil boxes cost (in ₹)?
  8. 8.What is the smallest number you must take away from 721 so that it divides exactly by 8?
  9. 9.Find the LCM of 4, 2 and 15.
  10. 10.Find the HCF of 77 and 33.
  11. 11.A hall floor is 250 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.What percent of 20 is 7?
  13. 13.Which is closest to 204 + 204 + 903? (a) 1400 (b) 1500 (c) 1200 (d) 1300
  14. 14.Round 14.24 to one decimal place. =
  15. 15.10 : 6 = 80 : ?
  16. 16.46.2 ÷ 7 =
  17. 17.Find the LCM of 2, 6 and 14.
  18. 18.1.6 × 5 =
  19. 19.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 4, 12 or 9.
  20. 20.Which of these numbers divides exactly by 3? (a) 3089 (b) 9113 (c) 8677 (d) 3612
  21. 21.30% of a number is 102. What is the number?
  22. 22.Aarav takes 75 seconds and Karan takes 40 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?
  23. 23.40.2 ÷ 6 =
  24. 24.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 6, 3 or 9.
  25. 25.Two tanks hold 180 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  26. 26.The ratio of boys to girls in a class is 1 : 8. There are 4 boys. How many girls are there?
  27. 27.What is the smallest number you must add to 512 so that it divides exactly by 7?
  28. 28.Which is closest to 598 × 61? (Round each number first.) (a) 360000 (b) 72000 (c) 36000 (d) 3600
  29. 29.Round 98236 to the nearest ten.
  30. 30.A hall floor is 420 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  31. 31.A hall floor is 315 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  32. 32.11 : 3 = 44 : ?
  33. 33.Saanvi scored 18 marks out of 25 in a test. What percentage did Saanvi score?
  34. 34.Divide ₹323 between Kabir and Diya in the ratio 9 : 8. How much does Diya get (in ₹)?
  35. 35.Which is closest to 297 × 81? (Round each number first.) (a) 24000 (b) 2400 (c) 48000 (d) 240000
  36. 36.A hall floor is 175 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.6/8 − 1/10 =
  38. 38.9/10 − 2/3 =
  39. 39.Three temple bells ring every 5, 10 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.Divide ₹369 between Ishaan and Rohan in the ratio 7 : 2. How much does Ishaan get (in ₹)?

Answer key

  1. 57.6
  2. 8562
  3. 15
  4. 19.8
  5. 89200
  6. 165
  7. 520
  8. 1
  9. 60
  10. 11
  11. 15
  12. 35
  13. 1300
  14. 14.2
  15. 48
  16. 6.6
  17. 42
  18. 8
  19. 39
  20. 3612
  21. 340
  22. 600
  23. 6.7
  24. 19
  25. 20
  26. 32
  27. 6
  28. 36000
  29. 98240
  30. 21
  31. 14
  32. 12
  33. 72
  34. 152
  35. 24000
  36. 35
  37. 13/20
  38. 7/30
  39. 30
  40. 287

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