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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 657 · 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. 1.3.85 + 5.1 = ? (a) 9.05 (b) 8.85 (c) 4.36 (d) 8.95
  2. 2.What is the value of the digit 1 in 14.276? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  3. 3.What is the value of the digit 4 in 12.348? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  4. 4.What is the value of the digit 5 in 56.129? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  5. 5.Which is the greatest: 0.61, 0.547, 0.055, 0.6? (a) 0.61 (b) 0.547 (c) 0.055 (d) 0.6
  6. 6.7.41 + 4.4 = ? (a) 11.71 (b) 11.91 (c) 11.81 (d) 7.85
  7. 7.3.24 + 7.1 = ? (a) 3.95 (b) 10.44 (c) 10.24 (d) 10.34
  8. 8.Which is the smallest: 0.42, 0.383, 0.034, 0.4? (a) 0.42 (b) 0.383 (c) 0.034 (d) 0.4
  9. 9.Which is the greatest: 0.7, 0.74, 0.632, 0.062? (a) 0.7 (b) 0.74 (c) 0.632 (d) 0.062
  10. 10.What is the value of the digit 2 in 43.782? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  11. 11.7.41 + 5.6 = ? (a) 13.11 (b) 7.97 (c) 13.01 (d) 12.91
  12. 12.What is the value of the digit 2 in 52.846? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  13. 13.Which is the greatest: 0.55, 0.024, 0.449, 0.5? (a) 0.55 (b) 0.024 (c) 0.449 (d) 0.5
  14. 14.6.62 + 2.5 = ? (a) 9.22 (b) 9.02 (c) 6.87 (d) 9.12
  15. 15.3.35 + 6.4 = ? (a) 3.99 (b) 9.65 (c) 9.85 (d) 9.75
  16. 16.8.64 + 2.2 = ? (a) 10.84 (b) 10.94 (c) 8.86 (d) 10.74
  17. 17.What is the value of the digit 5 in 45.619? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  18. 18.8.92 + 1.5 = ? (a) 9.07 (b) 10.52 (c) 10.32 (d) 10.42
  19. 19.6.83 + 3.1 = ? (a) 7.14 (b) 10.03 (c) 9.83 (d) 9.93
  20. 20.What is the value of the digit 5 in 43.758? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  21. 21.Which is the smallest: 0.67, 0.6, 0.025, 0.551? (a) 0.67 (b) 0.6 (c) 0.025 (d) 0.551
  22. 22.What is the value of the digit 3 in 81.634? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  23. 23.What is the value of the digit 4 in 51.248? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  24. 24.Which is the greatest: 0.542, 0.69, 0.6, 0.065? (a) 0.542 (b) 0.69 (c) 0.6 (d) 0.065
  25. 25.Which is the smallest: 0.052, 0.58, 0.486, 0.5? (a) 0.052 (b) 0.58 (c) 0.486 (d) 0.5
  26. 26.9.17 + 2.4 = ? (a) 11.57 (b) 11.47 (c) 11.67 (d) 9.41
  27. 27.Which is the greatest: 0.3, 0.36, 0.217, 0.046? (a) 0.3 (b) 0.36 (c) 0.217 (d) 0.046
  28. 28.Which is the smallest: 0.7, 0.72, 0.643, 0.039? (a) 0.7 (b) 0.72 (c) 0.643 (d) 0.039
  29. 29.Which is the greatest: 0.38, 0.065, 0.3, 0.228? (a) 0.38 (b) 0.065 (c) 0.3 (d) 0.228
  30. 30.What is the value of the digit 3 in 43.512? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  31. 31.What is the value of the digit 8 in 32.198? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08
  32. 32.Which is the greatest: 0.417, 0.51, 0.053, 0.5? (a) 0.417 (b) 0.51 (c) 0.053 (d) 0.5
  33. 33.4.53 + 2.2 = ? (a) 6.83 (b) 6.73 (c) 6.63 (d) 4.75
  34. 34.6.41 + 7.9 = ? (a) 7.2 (b) 14.31 (c) 14.41 (d) 14.21
  35. 35.Which is the greatest: 0.48, 0.328, 0.053, 0.4? (a) 0.48 (b) 0.328 (c) 0.053 (d) 0.4
  36. 36.What is the value of the digit 8 in 48.291? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  37. 37.What is the value of the digit 4 in 97.354? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  38. 38.6.43 + 7.7 = ? (a) 14.13 (b) 14.23 (c) 7.2 (d) 14.03
  39. 39.What is the value of the digit 9 in 14.893? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  40. 40.What is the value of the digit 5 in 49.857? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05

Answer key

  1. 8.95
  2. 10
  3. 0.04
  4. 50
  5. 0.61
  6. 11.81
  7. 10.34
  8. 0.034
  9. 0.74
  10. 0.002
  11. 13.01
  12. 2
  13. 0.55
  14. 9.12
  15. 9.75
  16. 10.84
  17. 5
  18. 10.42
  19. 9.93
  20. 0.05
  21. 0.025
  22. 0.03
  23. 0.04
  24. 0.69
  25. 0.052
  26. 11.57
  27. 0.36
  28. 0.039
  29. 0.38
  30. 3
  31. 0.008
  32. 0.51
  33. 6.73
  34. 14.31
  35. 0.48
  36. 8
  37. 0.004
  38. 14.13
  39. 0.09
  40. 0.05

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