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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 839 · 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: 0.8, 0.762, 0.044, 0.89? (a) 0.8 (b) 0.762 (c) 0.044 (d) 0.89
  2. 2.What is the value of the digit 6 in 69.325? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  3. 3.8.68 + 3.9 = ? (a) 12.58 (b) 9.07 (c) 12.68 (d) 12.48
  4. 4.What is the value of the digit 7 in 36.571? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  5. 5.What is the value of the digit 6 in 56.179? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  6. 6.6.21 + 4.8 = ? (a) 10.91 (b) 11.11 (c) 6.69 (d) 11.01
  7. 7.5.62 + 1.4 = ? (a) 6.92 (b) 7.12 (c) 7.02 (d) 5.76
  8. 8.What is the value of the digit 3 in 23.469? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  9. 9.Which is the smallest: 0.075, 0.5, 0.58, 0.421? (a) 0.075 (b) 0.5 (c) 0.58 (d) 0.421
  10. 10.Which is the greatest: 0.29, 0.037, 0.118, 0.2? (a) 0.29 (b) 0.037 (c) 0.118 (d) 0.2
  11. 11.Which is the smallest: 0.2, 0.23, 0.124, 0.046? (a) 0.2 (b) 0.23 (c) 0.124 (d) 0.046
  12. 12.Which is the smallest: 0.048, 0.3, 0.281, 0.38? (a) 0.048 (b) 0.3 (c) 0.281 (d) 0.38
  13. 13.9.81 + 8.9 = ? (a) 18.61 (b) 18.71 (c) 10.7 (d) 18.81
  14. 14.Which is the greatest: 0.332, 0.052, 0.48, 0.4? (a) 0.332 (b) 0.052 (c) 0.48 (d) 0.4
  15. 15.Which is the greatest: 0.4, 0.034, 0.45, 0.341? (a) 0.4 (b) 0.034 (c) 0.45 (d) 0.341
  16. 16.What is the value of the digit 9 in 68.391? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  17. 17.6.15 + 5.1 = ? (a) 6.66 (b) 11.15 (c) 11.35 (d) 11.25
  18. 18.What is the value of the digit 4 in 54.398? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  19. 19.8.51 + 1.7 = ? (a) 10.31 (b) 8.68 (c) 10.21 (d) 10.11
  20. 20.What is the value of the digit 4 in 56.284? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  21. 21.What is the value of the digit 4 in 57.419? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  22. 22.Which is the greatest: 0.25, 0.067, 0.141, 0.2? (a) 0.25 (b) 0.067 (c) 0.141 (d) 0.2
  23. 23.What is the value of the digit 2 in 21.348? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  24. 24.2.81 + 5.3 = ? (a) 8.11 (b) 8.01 (c) 8.21 (d) 3.34
  25. 25.What is the value of the digit 7 in 86.714? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  26. 26.What is the value of the digit 1 in 14.675? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  27. 27.4.09 + 7.8 = ? (a) 11.89 (b) 4.87 (c) 11.99 (d) 11.79
  28. 28.8.24 + 9.1 = ? (a) 17.24 (b) 9.15 (c) 17.44 (d) 17.34
  29. 29.What is the value of the digit 9 in 29.461? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  30. 30.Which is the greatest: 0.654, 0.7, 0.75, 0.097? (a) 0.654 (b) 0.7 (c) 0.75 (d) 0.097
  31. 31.What is the value of the digit 3 in 13.597? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  32. 32.8.52 + 8.2 = ? (a) 9.34 (b) 16.82 (c) 16.72 (d) 16.62
  33. 33.Which is the greatest: 0.4, 0.394, 0.067, 0.42? (a) 0.4 (b) 0.394 (c) 0.067 (d) 0.42
  34. 34.Which is the greatest: 0.6, 0.556, 0.077, 0.62? (a) 0.6 (b) 0.556 (c) 0.077 (d) 0.62
  35. 35.What is the value of the digit 3 in 13.569? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  36. 36.2.36 + 2.2 = ? (a) 4.66 (b) 4.46 (c) 2.58 (d) 4.56
  37. 37.Which is the greatest: 0.076, 0.44, 0.4, 0.383? (a) 0.076 (b) 0.44 (c) 0.4 (d) 0.383
  38. 38.What is the value of the digit 1 in 13.976? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  39. 39.3.48 + 2.4 = ? (a) 3.72 (b) 5.98 (c) 5.78 (d) 5.88
  40. 40.What is the value of the digit 3 in 34.651? (a) 3 (b) 0.3 (c) 0.03 (d) 30

Answer key

  1. 0.89
  2. 60
  3. 12.58
  4. 0.07
  5. 6
  6. 11.01
  7. 7.02
  8. 3
  9. 0.075
  10. 0.29
  11. 0.046
  12. 0.048
  13. 18.71
  14. 0.48
  15. 0.45
  16. 0.09
  17. 11.25
  18. 4
  19. 10.21
  20. 0.004
  21. 0.4
  22. 0.25
  23. 20
  24. 8.11
  25. 0.7
  26. 10
  27. 11.89
  28. 17.34
  29. 9
  30. 0.75
  31. 3
  32. 16.72
  33. 0.42
  34. 0.62
  35. 3
  36. 4.56
  37. 0.44
  38. 10
  39. 5.88
  40. 30

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