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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 393 · 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 29.46 to one decimal place. =
  2. 2.(3 + 17) × 9 − 4 =
  3. 3.What is the smallest number you must take away from 679 so that it divides exactly by 11?
  4. 4.7 : 6 = 49 : ?
  5. 5.(10 + 16) × 5 − 14 =
  6. 6.4.79 + 6.7 =
  7. 7.What is the smallest number you must take away from 182 so that it divides exactly by 4?
  8. 8.Divide ₹658 between Rahul and Ishaan in the ratio 9 : 5. How much does Rahul get (in ₹)?
  9. 9.If 12 kites cost ₹636, how much do 20 kites cost (in ₹)?
  10. 10.45 + 4 × 5 − 10 =
  11. 11.Write 13/20 as a percent.
  12. 12.Which is closest to 803 ÷ 19? (a) 400 (b) 40 (c) 20 (d) 80
  13. 13.Pooja scored 14 marks out of 20 in a test. What percentage did Pooja score?
  14. 14.30.8 ÷ 4 =
  15. 15.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.Which is closest to 299 × 78? (Round each number first.) (a) 48000 (b) 24000 (c) 240000 (d) 2400
  17. 17.Which of these numbers divides exactly by 8? (a) 5174 (b) 4541 (c) 6225 (d) 8736
  18. 18.Which of these numbers divides exactly by 4? (a) 9257 (b) 6057 (c) 9408 (d) 7203
  19. 19.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  20. 20.What is the smallest number you must take away from 249 so that it divides exactly by 12?
  21. 21.Write 1/5 as a percent.
  22. 22.Find the LCM of 3, 9 and 11.
  23. 23.36 ÷ 6 × 7 + 1 =
  24. 24.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  25. 25.Sneha scored 16 marks out of 40 in a test. What percentage did Sneha score?
  26. 26.Which of these numbers divides exactly by 9? (a) 8763 (b) 8455 (c) 1835 (d) 6750
  27. 27.Which of these numbers divides exactly by 6? (a) 1174 (b) 3067 (c) 8878 (d) 5922
  28. 28.What is 4/9 of ₹144?
  29. 29.7 × (26 − 19) + 30 ÷ 3 =
  30. 30.A car goes 207 km on 9 litres of petrol. How far can it go on 22 litres (in km)?
  31. 31.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  32. 32.What is the smallest number you must add to 202 so that it divides exactly by 11?
  33. 33.28 + 8 × 10 − 15 =
  34. 34.The ratio of boys to girls in a class is 3 : 8. There are 9 boys. How many girls are there?
  35. 35.If 5 kg of rice costs ₹275, how many kg can you buy for ₹550?
  36. 36.Divide ₹336 between Aarav and Kabir in the ratio 9 : 7. How much does Kabir get (in ₹)?
  37. 37.If 10 notebooks cost ₹570, how much do 18 notebooks cost (in ₹)?
  38. 38.11 : 9 = 22 : ?
  39. 39.2/7 of 21 + 7 × 2 =
  40. 40.Find the LCM of 8, 12 and 9.

Answer key

  1. 29.5
  2. 176
  3. 8
  4. 42
  5. 116
  6. 11.49
  7. 2
  8. 423
  9. 1060
  10. 55
  11. 65
  12. 40
  13. 70
  14. 7.7
  15. 28
  16. 24000
  17. 8736
  18. 9408
  19. 128
  20. 9
  21. 20
  22. 99
  23. 43
  24. 28
  25. 40
  26. 6750
  27. 5922
  28. 64
  29. 59
  30. 506
  31. 6
  32. 7
  33. 93
  34. 24
  35. 10
  36. 147
  37. 1026
  38. 18
  39. 20
  40. 72

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