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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 75 · 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.Which is the greatest: 0.32, 0.247, 0.3, 0.018? (a) 0.32 (b) 0.247 (c) 0.3 (d) 0.018
  2. 2.Which is the smallest: 0.672, 0.7, 0.089, 0.77? (a) 0.672 (b) 0.7 (c) 0.089 (d) 0.77
  3. 3.What is the value of the digit 1 in 17.963? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  4. 4.4.64 + 1.8 = ? (a) 6.34 (b) 6.54 (c) 6.44 (d) 4.82
  5. 5.2.03 + 1.6 = ? (a) 3.63 (b) 3.53 (c) 2.19 (d) 3.73
  6. 6.1.44 + 2.1 = ? (a) 3.64 (b) 3.54 (c) 3.44 (d) 1.65
  7. 7.What is the value of the digit 8 in 89.746? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  8. 8.What is the value of the digit 1 in 91.835? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  9. 9.7.07 + 7.8 = ? (a) 7.85 (b) 14.97 (c) 14.87 (d) 14.77
  10. 10.3.84 + 3.5 = ? (a) 7.44 (b) 7.24 (c) 7.34 (d) 4.19
  11. 11.Which is the greatest: 0.057, 0.54, 0.423, 0.5? (a) 0.057 (b) 0.54 (c) 0.423 (d) 0.5
  12. 12.What is the value of the digit 9 in 94.651? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  13. 13.Which is the greatest: 0.2, 0.043, 0.22, 0.122? (a) 0.2 (b) 0.043 (c) 0.22 (d) 0.122
  14. 14.9.82 + 8.3 = ? (a) 10.65 (b) 18.02 (c) 18.12 (d) 18.22
  15. 15.4.94 + 3.3 = ? (a) 8.14 (b) 8.34 (c) 5.27 (d) 8.24
  16. 16.1.23 + 9.3 = ? (a) 10.63 (b) 10.43 (c) 10.53 (d) 2.16
  17. 17.6.01 + 8.1 = ? (a) 14.21 (b) 14.11 (c) 14.01 (d) 6.82
  18. 18.What is the value of the digit 4 in 49.735? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  19. 19.2.18 + 6.7 = ? (a) 8.88 (b) 2.85 (c) 8.78 (d) 8.98
  20. 20.7.25 + 1.8 = ? (a) 9.15 (b) 8.95 (c) 9.05 (d) 7.43
  21. 21.Which is the greatest: 0.88, 0.8, 0.758, 0.019? (a) 0.88 (b) 0.8 (c) 0.758 (d) 0.019
  22. 22.Which is the smallest: 0.463, 0.53, 0.5, 0.015? (a) 0.463 (b) 0.53 (c) 0.5 (d) 0.015
  23. 23.What is the value of the digit 4 in 19.473? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  24. 24.Which is the greatest: 0.51, 0.467, 0.5, 0.023? (a) 0.51 (b) 0.467 (c) 0.5 (d) 0.023
  25. 25.What is the value of the digit 4 in 36.549? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  26. 26.What is the value of the digit 2 in 52.743? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  27. 27.Which is the greatest: 0.396, 0.4, 0.46, 0.089? (a) 0.396 (b) 0.4 (c) 0.46 (d) 0.089
  28. 28.5.45 + 5.6 = ? (a) 11.15 (b) 10.95 (c) 6.01 (d) 11.05
  29. 29.What is the value of the digit 7 in 27.164? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  30. 30.What is the value of the digit 5 in 34.965? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  31. 31.Which is the smallest: 0.016, 0.7, 0.669, 0.73? (a) 0.016 (b) 0.7 (c) 0.669 (d) 0.73
  32. 32.2.97 + 3.5 = ? (a) 6.37 (b) 6.47 (c) 3.32 (d) 6.57
  33. 33.Which is the greatest: 0.35, 0.3, 0.274, 0.023? (a) 0.35 (b) 0.3 (c) 0.274 (d) 0.023
  34. 34.Which is the smallest: 0.082, 0.75, 0.7, 0.643? (a) 0.082 (b) 0.75 (c) 0.7 (d) 0.643
  35. 35.Which is the smallest: 0.073, 0.5, 0.52, 0.439? (a) 0.073 (b) 0.5 (c) 0.52 (d) 0.439
  36. 36.Which is the greatest: 0.36, 0.039, 0.3, 0.257? (a) 0.36 (b) 0.039 (c) 0.3 (d) 0.257
  37. 37.1.84 + 4.7 = ? (a) 6.44 (b) 2.31 (c) 6.64 (d) 6.54
  38. 38.Which is the greatest: 0.7, 0.676, 0.076, 0.76? (a) 0.7 (b) 0.676 (c) 0.076 (d) 0.76
  39. 39.5.84 + 7.6 = ? (a) 13.34 (b) 13.54 (c) 6.6 (d) 13.44
  40. 40.Which is the smallest: 0.425, 0.5, 0.57, 0.014? (a) 0.425 (b) 0.5 (c) 0.57 (d) 0.014

Answer key

  1. 0.32
  2. 0.089
  3. 10
  4. 6.44
  5. 3.63
  6. 3.54
  7. 80
  8. 1
  9. 14.87
  10. 7.34
  11. 0.54
  12. 90
  13. 0.22
  14. 18.12
  15. 8.24
  16. 10.53
  17. 14.11
  18. 40
  19. 8.88
  20. 9.05
  21. 0.88
  22. 0.015
  23. 0.4
  24. 0.51
  25. 0.04
  26. 2
  27. 0.46
  28. 11.05
  29. 7
  30. 0.005
  31. 0.016
  32. 6.47
  33. 0.35
  34. 0.082
  35. 0.073
  36. 0.36
  37. 6.54
  38. 0.76
  39. 13.44
  40. 0.014

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