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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 679 · 40 questions
TalentJR

How to solve it (Same number of places): Add zeros at the end so every decimal has the same number of places (0.5 = 0.500). Compare or add them like whole numbers, keeping the decimal points in a line. Place value after the point: tenths (0.1), hundredths (0.01), thousandths (0.001).

NameDateTime takenScore ___ / 40
  1. 1.9.06 + 6.6 = ? (a) 9.72 (b) 15.76 (c) 15.56 (d) 15.66
  2. 2.What is the value of the digit 7 in 57.413? (a) 0.7 (b) 0.07 (c) 70 (d) 7
  3. 3.9.54 + 9.1 = ? (a) 18.54 (b) 18.74 (c) 18.64 (d) 10.45
  4. 4.3.36 + 8.7 = ? (a) 12.06 (b) 11.96 (c) 12.16 (d) 4.23
  5. 5.9.21 + 7.9 = ? (a) 17.21 (b) 17.01 (c) 10 (d) 17.11
  6. 6.Which is the greatest: 0.57, 0.051, 0.496, 0.5? (a) 0.57 (b) 0.051 (c) 0.496 (d) 0.5
  7. 7.What is the value of the digit 6 in 26.358? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  8. 8.1.01 + 7.5 = ? (a) 8.41 (b) 8.51 (c) 8.61 (d) 1.76
  9. 9.Which is the smallest: 0.31, 0.262, 0.066, 0.3? (a) 0.31 (b) 0.262 (c) 0.066 (d) 0.3
  10. 10.3.52 + 7.7 = ? (a) 11.22 (b) 4.29 (c) 11.32 (d) 11.12
  11. 11.4.43 + 2.2 = ? (a) 4.65 (b) 6.63 (c) 6.53 (d) 6.73
  12. 12.Which is the greatest: 0.786, 0.8, 0.86, 0.031? (a) 0.786 (b) 0.8 (c) 0.86 (d) 0.031
  13. 13.Which is the greatest: 0.2, 0.26, 0.091, 0.189? (a) 0.2 (b) 0.26 (c) 0.091 (d) 0.189
  14. 14.Which is the smallest: 0.33, 0.241, 0.3, 0.092? (a) 0.33 (b) 0.241 (c) 0.3 (d) 0.092
  15. 15.What is the value of the digit 3 in 54.138? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  16. 16.Which is the smallest: 0.636, 0.76, 0.7, 0.025? (a) 0.636 (b) 0.76 (c) 0.7 (d) 0.025
  17. 17.Which is the smallest: 0.019, 0.665, 0.72, 0.7? (a) 0.019 (b) 0.665 (c) 0.72 (d) 0.7
  18. 18.Which is the smallest: 0.3, 0.35, 0.264, 0.094? (a) 0.3 (b) 0.35 (c) 0.264 (d) 0.094
  19. 19.1.38 + 2.2 = ? (a) 3.68 (b) 3.58 (c) 1.6 (d) 3.48
  20. 20.What is the value of the digit 2 in 49.312? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  21. 21.5.88 + 4.9 = ? (a) 10.78 (b) 6.37 (c) 10.68 (d) 10.88
  22. 22.Which is the smallest: 0.026, 0.2, 0.21, 0.113? (a) 0.026 (b) 0.2 (c) 0.21 (d) 0.113
  23. 23.Which is the greatest: 0.255, 0.057, 0.3, 0.38? (a) 0.255 (b) 0.057 (c) 0.3 (d) 0.38
  24. 24.Which is the smallest: 0.011, 0.29, 0.2, 0.192? (a) 0.011 (b) 0.29 (c) 0.2 (d) 0.192
  25. 25.What is the value of the digit 9 in 79.685? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  26. 26.3.42 + 3.2 = ? (a) 3.74 (b) 6.52 (c) 6.62 (d) 6.72
  27. 27.6.57 + 4.5 = ? (a) 11.07 (b) 7.02 (c) 10.97 (d) 11.17
  28. 28.What is the value of the digit 4 in 47.298? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  29. 29.8.14 + 3.7 = ? (a) 8.51 (b) 11.74 (c) 11.84 (d) 11.94
  30. 30.Which is the greatest: 0.559, 0.61, 0.6, 0.013? (a) 0.559 (b) 0.61 (c) 0.6 (d) 0.013
  31. 31.What is the value of the digit 1 in 51.347? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  32. 32.Which is the greatest: 0.254, 0.3, 0.34, 0.037? (a) 0.254 (b) 0.3 (c) 0.34 (d) 0.037
  33. 33.4.78 + 8.7 = ? (a) 5.65 (b) 13.38 (c) 13.48 (d) 13.58
  34. 34.What is the value of the digit 1 in 64.291? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  35. 35.3.31 + 4.4 = ? (a) 3.75 (b) 7.81 (c) 7.71 (d) 7.61
  36. 36.What is the value of the digit 3 in 69.532? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  37. 37.What is the value of the digit 7 in 76.523? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  38. 38.9.52 + 5.3 = ? (a) 10.05 (b) 14.72 (c) 14.92 (d) 14.82
  39. 39.Which is the greatest: 0.441, 0.5, 0.057, 0.54? (a) 0.441 (b) 0.5 (c) 0.057 (d) 0.54
  40. 40.What is the value of the digit 2 in 32.741? (a) 0.02 (b) 2 (c) 0.2 (d) 20

Answer key

  1. 15.66
  2. 7
  3. 18.64
  4. 12.06
  5. 17.11
  6. 0.57
  7. 6
  8. 8.51
  9. 0.066
  10. 11.22
  11. 6.63
  12. 0.86
  13. 0.26
  14. 0.092
  15. 0.03
  16. 0.025
  17. 0.019
  18. 0.094
  19. 3.58
  20. 0.002
  21. 10.78
  22. 0.026
  23. 0.38
  24. 0.011
  25. 9
  26. 6.62
  27. 11.07
  28. 40
  29. 11.84
  30. 0.61
  31. 1
  32. 0.34
  33. 13.48
  34. 0.001
  35. 7.71
  36. 0.03
  37. 70
  38. 14.82
  39. 0.54
  40. 2

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