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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 67 · 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: 0.449, 0.52, 0.092, 0.5? (a) 0.449 (b) 0.52 (c) 0.092 (d) 0.5
  2. 2.8.38 + 8.3 = ? (a) 9.21 (b) 16.68 (c) 16.58 (d) 16.78
  3. 3.Which is the smallest: 0.68, 0.046, 0.6, 0.532? (a) 0.68 (b) 0.046 (c) 0.6 (d) 0.532
  4. 4.What is the value of the digit 7 in 37.412? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  5. 5.Which is the smallest: 0.34, 0.094, 0.284, 0.3? (a) 0.34 (b) 0.094 (c) 0.284 (d) 0.3
  6. 6.8.92 + 4.6 = ? (a) 13.62 (b) 13.52 (c) 13.42 (d) 9.38
  7. 7.Which is the greatest: 0.57, 0.018, 0.479, 0.5? (a) 0.57 (b) 0.018 (c) 0.479 (d) 0.5
  8. 8.Which is the smallest: 0.66, 0.519, 0.091, 0.6? (a) 0.66 (b) 0.519 (c) 0.091 (d) 0.6
  9. 9.1.46 + 5.6 = ? (a) 2.02 (b) 6.96 (c) 7.16 (d) 7.06
  10. 10.7.17 + 3.1 = ? (a) 10.27 (b) 10.37 (c) 7.48 (d) 10.17
  11. 11.4.25 + 2.4 = ? (a) 4.49 (b) 6.75 (c) 6.55 (d) 6.65
  12. 12.What is the value of the digit 4 in 31.748? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  13. 13.2.04 + 6.1 = ? (a) 8.04 (b) 8.14 (c) 8.24 (d) 2.65
  14. 14.6.69 + 9.8 = ? (a) 16.39 (b) 7.67 (c) 16.59 (d) 16.49
  15. 15.Which is the smallest: 0.72, 0.622, 0.054, 0.7? (a) 0.72 (b) 0.622 (c) 0.054 (d) 0.7
  16. 16.What is the value of the digit 3 in 83.541? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  17. 17.5.51 + 5.1 = ? (a) 6.02 (b) 10.61 (c) 10.71 (d) 10.51
  18. 18.Which is the smallest: 0.51, 0.491, 0.032, 0.5? (a) 0.51 (b) 0.491 (c) 0.032 (d) 0.5
  19. 19.4.42 + 9.1 = ? (a) 13.62 (b) 13.52 (c) 13.42 (d) 5.33
  20. 20.Which is the smallest: 0.8, 0.781, 0.043, 0.81? (a) 0.8 (b) 0.781 (c) 0.043 (d) 0.81
  21. 21.Which is the greatest: 0.33, 0.223, 0.076, 0.3? (a) 0.33 (b) 0.223 (c) 0.076 (d) 0.3
  22. 22.Which is the smallest: 0.453, 0.56, 0.5, 0.054? (a) 0.453 (b) 0.56 (c) 0.5 (d) 0.054
  23. 23.Which is the greatest: 0.4, 0.339, 0.035, 0.41? (a) 0.4 (b) 0.339 (c) 0.035 (d) 0.41
  24. 24.7.38 + 3.8 = ? (a) 7.76 (b) 11.28 (c) 11.18 (d) 11.08
  25. 25.What is the value of the digit 7 in 37.542? (a) 70 (b) 7 (c) 0.07 (d) 0.7
  26. 26.4.44 + 7.6 = ? (a) 12.14 (b) 12.04 (c) 11.94 (d) 5.2
  27. 27.Which is the greatest: 0.433, 0.074, 0.5, 0.56? (a) 0.433 (b) 0.074 (c) 0.5 (d) 0.56
  28. 28.Which is the greatest: 0.7, 0.656, 0.74, 0.028? (a) 0.7 (b) 0.656 (c) 0.74 (d) 0.028
  29. 29.8.16 + 8.7 = ? (a) 16.86 (b) 9.03 (c) 16.76 (d) 16.96
  30. 30.6.22 + 7.3 = ? (a) 13.42 (b) 13.62 (c) 13.52 (d) 6.95
  31. 31.2.65 + 6.4 = ? (a) 9.05 (b) 3.29 (c) 8.95 (d) 9.15
  32. 32.Which is the greatest: 0.181, 0.27, 0.033, 0.2? (a) 0.181 (b) 0.27 (c) 0.033 (d) 0.2
  33. 33.What is the value of the digit 1 in 35.129? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  34. 34.9.33 + 1.3 = ? (a) 10.53 (b) 10.63 (c) 10.73 (d) 9.46
  35. 35.Which is the smallest: 0.084, 0.2, 0.136, 0.21? (a) 0.084 (b) 0.2 (c) 0.136 (d) 0.21
  36. 36.What is the value of the digit 7 in 36.417? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  37. 37.What is the value of the digit 3 in 19.325? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  38. 38.What is the value of the digit 5 in 71.258? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  39. 39.What is the value of the digit 5 in 47.569? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  40. 40.What is the value of the digit 7 in 29.173? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7

Answer key

  1. 0.092
  2. 16.68
  3. 0.046
  4. 7
  5. 0.094
  6. 13.52
  7. 0.57
  8. 0.091
  9. 7.06
  10. 10.27
  11. 6.65
  12. 0.04
  13. 8.14
  14. 16.49
  15. 0.054
  16. 3
  17. 10.61
  18. 0.032
  19. 13.52
  20. 0.043
  21. 0.33
  22. 0.054
  23. 0.41
  24. 11.18
  25. 7
  26. 12.04
  27. 0.56
  28. 0.74
  29. 16.86
  30. 13.52
  31. 9.05
  32. 0.27
  33. 0.1
  34. 10.63
  35. 0.084
  36. 0.007
  37. 0.3
  38. 0.05
  39. 0.5
  40. 0.07

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