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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 970 · 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.What is the value of the digit 3 in 48.973? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  2. 2.3.17 + 8.9 = ? (a) 12.17 (b) 4.06 (c) 11.97 (d) 12.07
  3. 3.What is the value of the digit 6 in 64.129? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  4. 4.What is the value of the digit 6 in 64.259? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  5. 5.Which is the greatest: 0.5, 0.59, 0.412, 0.056? (a) 0.5 (b) 0.59 (c) 0.412 (d) 0.056
  6. 6.Which is the greatest: 0.695, 0.72, 0.7, 0.025? (a) 0.695 (b) 0.72 (c) 0.7 (d) 0.025
  7. 7.1.86 + 6.6 = ? (a) 8.56 (b) 8.46 (c) 2.52 (d) 8.36
  8. 8.Which is the greatest: 0.485, 0.038, 0.5, 0.53? (a) 0.485 (b) 0.038 (c) 0.5 (d) 0.53
  9. 9.4.51 + 6.4 = ? (a) 5.15 (b) 11.01 (c) 10.91 (d) 10.81
  10. 10.6.74 + 4.1 = ? (a) 7.15 (b) 10.84 (c) 10.94 (d) 10.74
  11. 11.What is the value of the digit 8 in 19.847? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  12. 12.What is the value of the digit 7 in 74.195? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  13. 13.Which is the greatest: 0.047, 0.8, 0.783, 0.82? (a) 0.047 (b) 0.8 (c) 0.783 (d) 0.82
  14. 14.What is the value of the digit 1 in 23.196? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  15. 15.7.56 + 4.3 = ? (a) 11.96 (b) 7.99 (c) 11.76 (d) 11.86
  16. 16.Which is the greatest: 0.021, 0.88, 0.734, 0.8? (a) 0.021 (b) 0.88 (c) 0.734 (d) 0.8
  17. 17.5.36 + 9.6 = ? (a) 6.32 (b) 15.06 (c) 14.96 (d) 14.86
  18. 18.Which is the greatest: 0.45, 0.018, 0.4, 0.347? (a) 0.45 (b) 0.018 (c) 0.4 (d) 0.347
  19. 19.What is the value of the digit 9 in 72.943? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  20. 20.Which is the smallest: 0.87, 0.011, 0.8, 0.729? (a) 0.87 (b) 0.011 (c) 0.8 (d) 0.729
  21. 21.9.34 + 7.3 = ? (a) 16.74 (b) 16.64 (c) 16.54 (d) 10.07
  22. 22.4.12 + 6.7 = ? (a) 4.79 (b) 10.82 (c) 10.92 (d) 10.72
  23. 23.Which is the greatest: 0.053, 0.519, 0.6, 0.61? (a) 0.053 (b) 0.519 (c) 0.6 (d) 0.61
  24. 24.What is the value of the digit 1 in 94.251? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  25. 25.Which is the greatest: 0.29, 0.148, 0.097, 0.2? (a) 0.29 (b) 0.148 (c) 0.097 (d) 0.2
  26. 26.1.77 + 7.2 = ? (a) 8.97 (b) 8.87 (c) 9.07 (d) 2.49
  27. 27.What is the value of the digit 6 in 92.476? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  28. 28.7.86 + 7.9 = ? (a) 8.65 (b) 15.86 (c) 15.66 (d) 15.76
  29. 29.2.34 + 6.3 = ? (a) 8.74 (b) 8.54 (c) 2.97 (d) 8.64
  30. 30.Which is the greatest: 0.064, 0.388, 0.4, 0.47? (a) 0.064 (b) 0.388 (c) 0.4 (d) 0.47
  31. 31.1.26 + 5.9 = ? (a) 7.26 (b) 7.16 (c) 1.85 (d) 7.06
  32. 32.What is the value of the digit 6 in 41.236? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  33. 33.Which is the smallest: 0.3, 0.38, 0.023, 0.226? (a) 0.3 (b) 0.38 (c) 0.023 (d) 0.226
  34. 34.5.77 + 8.9 = ? (a) 14.77 (b) 6.66 (c) 14.67 (d) 14.57
  35. 35.2.63 + 3.1 = ? (a) 5.73 (b) 5.83 (c) 5.63 (d) 2.94
  36. 36.4.45 + 8.1 = ? (a) 12.45 (b) 5.26 (c) 12.65 (d) 12.55
  37. 37.What is the value of the digit 2 in 73.126? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  38. 38.What is the value of the digit 7 in 23.487? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  39. 39.What is the value of the digit 5 in 35.418? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  40. 40.Which is the smallest: 0.5, 0.083, 0.54, 0.416? (a) 0.5 (b) 0.083 (c) 0.54 (d) 0.416

Answer key

  1. 0.003
  2. 12.07
  3. 60
  4. 60
  5. 0.59
  6. 0.72
  7. 8.46
  8. 0.53
  9. 10.91
  10. 10.84
  11. 0.8
  12. 70
  13. 0.82
  14. 0.1
  15. 11.86
  16. 0.88
  17. 14.96
  18. 0.45
  19. 0.9
  20. 0.011
  21. 16.64
  22. 10.82
  23. 0.61
  24. 0.001
  25. 0.29
  26. 8.97
  27. 0.006
  28. 15.76
  29. 8.64
  30. 0.47
  31. 7.16
  32. 0.006
  33. 0.023
  34. 14.67
  35. 5.73
  36. 12.55
  37. 0.02
  38. 0.007
  39. 5
  40. 0.083

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