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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 942 · 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. 1.8.16 + 7.1 = ? (a) 15.36 (b) 15.16 (c) 8.87 (d) 15.26
  2. 2.Which is the greatest: 0.2, 0.058, 0.189, 0.28? (a) 0.2 (b) 0.058 (c) 0.189 (d) 0.28
  3. 3.1.71 + 7.3 = ? (a) 2.44 (b) 9.11 (c) 9.01 (d) 8.91
  4. 4.Which is the smallest: 0.057, 0.59, 0.5, 0.441? (a) 0.057 (b) 0.59 (c) 0.5 (d) 0.441
  5. 5.What is the value of the digit 6 in 68.493? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  6. 6.Which is the smallest: 0.22, 0.123, 0.2, 0.072? (a) 0.22 (b) 0.123 (c) 0.2 (d) 0.072
  7. 7.3.88 + 4.3 = ? (a) 4.31 (b) 8.28 (c) 8.18 (d) 8.08
  8. 8.What is the value of the digit 8 in 18.426? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  9. 9.What is the value of the digit 9 in 93.647? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  10. 10.Which is the smallest: 0.185, 0.29, 0.082, 0.2? (a) 0.185 (b) 0.29 (c) 0.082 (d) 0.2
  11. 11.What is the value of the digit 3 in 92.643? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  12. 12.2.52 + 5.2 = ? (a) 7.62 (b) 7.72 (c) 7.82 (d) 3.04
  13. 13.9.38 + 3.1 = ? (a) 12.58 (b) 12.38 (c) 9.69 (d) 12.48
  14. 14.What is the value of the digit 1 in 67.158? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  15. 15.8.76 + 4.1 = ? (a) 12.96 (b) 12.86 (c) 9.17 (d) 12.76
  16. 16.What is the value of the digit 9 in 97.385? (a) 9 (b) 0.9 (c) 90 (d) 0.09
  17. 17.Which is the greatest: 0.548, 0.69, 0.6, 0.061? (a) 0.548 (b) 0.69 (c) 0.6 (d) 0.061
  18. 18.Which is the greatest: 0.26, 0.134, 0.2, 0.063? (a) 0.26 (b) 0.134 (c) 0.2 (d) 0.063
  19. 19.What is the value of the digit 6 in 52.631? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  20. 20.9.49 + 8.1 = ? (a) 17.69 (b) 17.59 (c) 17.49 (d) 10.3
  21. 21.8.43 + 8.8 = ? (a) 17.23 (b) 9.31 (c) 17.33 (d) 17.13
  22. 22.What is the value of the digit 7 in 64.783? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  23. 23.6.79 + 2.8 = ? (a) 9.59 (b) 9.69 (c) 7.07 (d) 9.49
  24. 24.Which is the smallest: 0.36, 0.3, 0.098, 0.275? (a) 0.36 (b) 0.3 (c) 0.098 (d) 0.275
  25. 25.What is the value of the digit 2 in 72.856? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  26. 26.Which is the smallest: 0.029, 0.466, 0.51, 0.5? (a) 0.029 (b) 0.466 (c) 0.51 (d) 0.5
  27. 27.Which is the greatest: 0.046, 0.6, 0.538, 0.66? (a) 0.046 (b) 0.6 (c) 0.538 (d) 0.66
  28. 28.Which is the greatest: 0.65, 0.027, 0.535, 0.6? (a) 0.65 (b) 0.027 (c) 0.535 (d) 0.6
  29. 29.What is the value of the digit 1 in 51.324? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  30. 30.5.74 + 5.2 = ? (a) 10.94 (b) 10.84 (c) 11.04 (d) 6.26
  31. 31.Which is the greatest: 0.055, 0.44, 0.325, 0.4? (a) 0.055 (b) 0.44 (c) 0.325 (d) 0.4
  32. 32.Which is the smallest: 0.2, 0.23, 0.053, 0.173? (a) 0.2 (b) 0.23 (c) 0.053 (d) 0.173
  33. 33.What is the value of the digit 2 in 25.918? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  34. 34.Which is the smallest: 0.071, 0.4, 0.49, 0.371? (a) 0.071 (b) 0.4 (c) 0.49 (d) 0.371
  35. 35.5.35 + 6.1 = ? (a) 11.35 (b) 11.45 (c) 5.96 (d) 11.55
  36. 36.9.33 + 6.1 = ? (a) 15.33 (b) 9.94 (c) 15.53 (d) 15.43
  37. 37.What is the value of the digit 7 in 48.275? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  38. 38.8.76 + 8.6 = ? (a) 9.62 (b) 17.36 (c) 17.26 (d) 17.46
  39. 39.Which is the greatest: 0.76, 0.619, 0.7, 0.025? (a) 0.76 (b) 0.619 (c) 0.7 (d) 0.025
  40. 40.Which is the greatest: 0.014, 0.8, 0.715, 0.87? (a) 0.014 (b) 0.8 (c) 0.715 (d) 0.87

Answer key

  1. 15.26
  2. 0.28
  3. 9.01
  4. 0.057
  5. 60
  6. 0.072
  7. 8.18
  8. 8
  9. 90
  10. 0.082
  11. 0.003
  12. 7.72
  13. 12.48
  14. 0.1
  15. 12.86
  16. 90
  17. 0.69
  18. 0.26
  19. 0.6
  20. 17.59
  21. 17.23
  22. 0.7
  23. 9.59
  24. 0.098
  25. 2
  26. 0.029
  27. 0.66
  28. 0.65
  29. 1
  30. 10.94
  31. 0.44
  32. 0.053
  33. 20
  34. 0.071
  35. 11.45
  36. 15.43
  37. 0.07
  38. 17.36
  39. 0.76
  40. 0.87

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