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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 679 · 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.What is the smallest number you must take away from 430 so that it divides exactly by 11?
  2. 2.Vivaan scored 19 marks out of 25 in a test. What percentage did Vivaan score?
  3. 3.Find the LCM of 3, 2 and 10.
  4. 4.Find the HCF of 112 and 42.
  5. 5.60 − 32 ÷ 8 × 8 =
  6. 6.11.4 ÷ 3 =
  7. 7.Which is closest to 796 + 397 + 805? (a) 2200 (b) 2100 (c) 1900 (d) 2000
  8. 8.Which is closest to 2006 ÷ 49? (a) 40 (b) 20 (c) 400 (d) 80
  9. 9.Two tanks hold 90 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  10. 10.Find the HCF of 96 and 84.
  11. 11.5 painters can paint a school in 7 days. How many days would 7 painters take, working at the same speed?
  12. 12.Aditya scored 6 marks out of 25 in a test. What percentage did Aditya score?
  13. 13.Divide ₹147 between Karan and Rahul in the ratio 6 : 1. How much does Karan get (in ₹)?
  14. 14.Round 14.17 to one decimal place. =
  15. 15.Two tanks hold 210 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  16. 16.What is 1/2 of 30 litres?
  17. 17.Sneha takes 50 seconds and Pooja takes 90 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?
  18. 18.36 ÷ 9 × 9 + 30 =
  19. 19.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  20. 20.1/8 × 5/11 =
  21. 21.Find the LCM of 15, 6 and 10.
  22. 22.What is the smallest number you must take away from 589 so that it divides exactly by 9?
  23. 23.4/5 − 1/11 =
  24. 24.Saanvi takes 80 seconds and Tara takes 30 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. 25.5/6 − 2/10 =
  26. 26.If 4 kg of rice costs ₹340, how many kg can you buy for ₹935?
  27. 27.Find the smallest number bigger than 10 that leaves a remainder of 3 when divided by 10, 5 or 4.
  28. 28.Find the LCM of 2, 10 and 9.
  29. 29.A car goes 56 km on 7 litres of petrol. How far can it go on 23 litres (in km)?
  30. 30.49 − 24 ÷ 8 × 8 =
  31. 31.Meera scored 4 marks out of 50 in a test. What percentage did Meera score?
  32. 32.Which of these numbers divides exactly by 4? (a) 3648 (b) 2169 (c) 2466 (d) 5349
  33. 33.Find the LCM of 21 and 12.
  34. 34.3.1 × 8 =
  35. 35.Which of these numbers divides exactly by 11? (a) 4857 (b) 3213 (c) 2838 (d) 4668
  36. 36.Which is closest to 798 × 30? (Round each number first.) (a) 240000 (b) 24000 (c) 48000 (d) 2400
  37. 37.9.24 + 7.4 =
  38. 38.What is the smallest number you must add to 311 so that it divides exactly by 7?
  39. 39.Two tanks hold 180 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.A hall floor is 120 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 1
  2. 76
  3. 30
  4. 14
  5. 28
  6. 3.8
  7. 2000
  8. 40
  9. 45
  10. 12
  11. 5
  12. 24
  13. 126
  14. 14.2
  15. 30
  16. 15
  17. 450
  18. 66
  19. 128
  20. 5/88
  21. 30
  22. 4
  23. 39/55
  24. 240
  25. 19/30
  26. 11
  27. 23
  28. 90
  29. 184
  30. 25
  31. 8
  32. 3648
  33. 84
  34. 24.8
  35. 2838
  36. 24000
  37. 16.64
  38. 4
  39. 20
  40. 6

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