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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 765 · 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 smallest: 0.127, 0.2, 0.21, 0.026? (a) 0.127 (b) 0.2 (c) 0.21 (d) 0.026
  2. 2.What is the value of the digit 5 in 75.942? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  3. 3.What is the value of the digit 6 in 63.958? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  4. 4.Which is the greatest: 0.59, 0.5, 0.482, 0.054? (a) 0.59 (b) 0.5 (c) 0.482 (d) 0.054
  5. 5.Which is the greatest: 0.49, 0.382, 0.4, 0.037? (a) 0.49 (b) 0.382 (c) 0.4 (d) 0.037
  6. 6.2.49 + 1.2 = ? (a) 3.69 (b) 3.59 (c) 3.79 (d) 2.61
  7. 7.What is the value of the digit 9 in 85.974? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  8. 8.What is the value of the digit 9 in 32.958? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  9. 9.What is the value of the digit 7 in 37.861? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  10. 10.7.46 + 8.8 = ? (a) 8.34 (b) 16.36 (c) 16.26 (d) 16.16
  11. 11.What is the value of the digit 4 in 65.234? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  12. 12.What is the value of the digit 4 in 82.479? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  13. 13.Which is the greatest: 0.63, 0.6, 0.546, 0.097? (a) 0.63 (b) 0.6 (c) 0.546 (d) 0.097
  14. 14.2.58 + 3.1 = ? (a) 5.78 (b) 5.68 (c) 5.58 (d) 2.89
  15. 15.1.74 + 5.4 = ? (a) 7.14 (b) 2.28 (c) 7.04 (d) 7.24
  16. 16.What is the value of the digit 6 in 42.637? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  17. 17.9.61 + 5.4 = ? (a) 10.15 (b) 14.91 (c) 15.11 (d) 15.01
  18. 18.What is the value of the digit 6 in 28.563? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  19. 19.Which is the greatest: 0.3, 0.249, 0.34, 0.041? (a) 0.3 (b) 0.249 (c) 0.34 (d) 0.041
  20. 20.Which is the greatest: 0.023, 0.2, 0.29, 0.125? (a) 0.023 (b) 0.2 (c) 0.29 (d) 0.125
  21. 21.Which is the greatest: 0.634, 0.7, 0.034, 0.79? (a) 0.634 (b) 0.7 (c) 0.034 (d) 0.79
  22. 22.3.86 + 4.4 = ? (a) 8.26 (b) 4.3 (c) 8.36 (d) 8.16
  23. 23.2.97 + 2.7 = ? (a) 5.77 (b) 5.67 (c) 3.24 (d) 5.57
  24. 24.Which is the smallest: 0.082, 0.6, 0.61, 0.518? (a) 0.082 (b) 0.6 (c) 0.61 (d) 0.518
  25. 25.Which is the smallest: 0.2, 0.28, 0.089, 0.121? (a) 0.2 (b) 0.28 (c) 0.089 (d) 0.121
  26. 26.What is the value of the digit 3 in 31.895? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  27. 27.What is the value of the digit 4 in 74.539? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  28. 28.9.99 + 1.8 = ? (a) 10.17 (b) 11.89 (c) 11.69 (d) 11.79
  29. 29.9.88 + 1.8 = ? (a) 10.06 (b) 11.68 (c) 11.78 (d) 11.58
  30. 30.Which is the smallest: 0.32, 0.278, 0.072, 0.3? (a) 0.32 (b) 0.278 (c) 0.072 (d) 0.3
  31. 31.What is the value of the digit 4 in 94.835? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  32. 32.7.26 + 2.8 = ? (a) 9.96 (b) 10.06 (c) 7.54 (d) 10.16
  33. 33.7.57 + 1.5 = ? (a) 8.97 (b) 9.17 (c) 9.07 (d) 7.72
  34. 34.Which is the greatest: 0.277, 0.096, 0.33, 0.3? (a) 0.277 (b) 0.096 (c) 0.33 (d) 0.3
  35. 35.What is the value of the digit 6 in 61.723? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  36. 36.9.52 + 6.4 = ? (a) 16.02 (b) 15.82 (c) 10.16 (d) 15.92
  37. 37.Which is the greatest: 0.31, 0.3, 0.223, 0.074? (a) 0.31 (b) 0.3 (c) 0.223 (d) 0.074
  38. 38.Which is the greatest: 0.046, 0.56, 0.459, 0.5? (a) 0.046 (b) 0.56 (c) 0.459 (d) 0.5
  39. 39.What is the value of the digit 4 in 45.169? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  40. 40.1.78 + 2.3 = ? (a) 4.08 (b) 4.18 (c) 2.01 (d) 3.98

Answer key

  1. 0.026
  2. 5
  3. 60
  4. 0.59
  5. 0.49
  6. 3.69
  7. 0.9
  8. 0.9
  9. 7
  10. 16.26
  11. 0.004
  12. 0.4
  13. 0.63
  14. 5.68
  15. 7.14
  16. 0.6
  17. 15.01
  18. 0.06
  19. 0.34
  20. 0.29
  21. 0.79
  22. 8.26
  23. 5.67
  24. 0.082
  25. 0.089
  26. 30
  27. 4
  28. 11.79
  29. 11.68
  30. 0.072
  31. 4
  32. 10.06
  33. 9.07
  34. 0.33
  35. 60
  36. 15.92
  37. 0.31
  38. 0.56
  39. 40
  40. 4.08

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