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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 747 · 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 5 in 21.485? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  2. 2.Which is the smallest: 0.691, 0.082, 0.77, 0.7? (a) 0.691 (b) 0.082 (c) 0.77 (d) 0.7
  3. 3.Which is the greatest: 0.34, 0.055, 0.233, 0.3? (a) 0.34 (b) 0.055 (c) 0.233 (d) 0.3
  4. 4.4.79 + 9.5 = ? (a) 14.29 (b) 14.19 (c) 5.74 (d) 14.39
  5. 5.What is the value of the digit 4 in 24.713? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  6. 6.Which is the smallest: 0.2, 0.112, 0.23, 0.085? (a) 0.2 (b) 0.112 (c) 0.23 (d) 0.085
  7. 7.3.34 + 2.7 = ? (a) 6.14 (b) 3.61 (c) 5.94 (d) 6.04
  8. 8.What is the value of the digit 7 in 24.175? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  9. 9.What is the value of the digit 9 in 69.142? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  10. 10.Which is the greatest: 0.22, 0.046, 0.2, 0.128? (a) 0.22 (b) 0.046 (c) 0.2 (d) 0.128
  11. 11.7.51 + 8.6 = ? (a) 8.37 (b) 16.21 (c) 16.01 (d) 16.11
  12. 12.6.74 + 8.7 = ? (a) 15.54 (b) 15.34 (c) 7.61 (d) 15.44
  13. 13.4.81 + 7.4 = ? (a) 5.55 (b) 12.11 (c) 12.31 (d) 12.21
  14. 14.Which is the greatest: 0.6, 0.062, 0.546, 0.64? (a) 0.6 (b) 0.062 (c) 0.546 (d) 0.64
  15. 15.2.16 + 7.5 = ? (a) 9.66 (b) 9.76 (c) 9.56 (d) 2.91
  16. 16.What is the value of the digit 7 in 93.765? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  17. 17.What is the value of the digit 8 in 89.315? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  18. 18.Which is the greatest: 0.74, 0.623, 0.021, 0.7? (a) 0.74 (b) 0.623 (c) 0.021 (d) 0.7
  19. 19.What is the value of the digit 5 in 42.715? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  20. 20.What is the value of the digit 1 in 48.271? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  21. 21.What is the value of the digit 3 in 79.463? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  22. 22.What is the value of the digit 6 in 38.652? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  23. 23.What is the value of the digit 1 in 19.743? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  24. 24.4.14 + 1.4 = ? (a) 4.28 (b) 5.44 (c) 5.64 (d) 5.54
  25. 25.4.88 + 2.1 = ? (a) 5.09 (b) 7.08 (c) 6.98 (d) 6.88
  26. 26.Which is the smallest: 0.363, 0.44, 0.072, 0.4? (a) 0.363 (b) 0.44 (c) 0.072 (d) 0.4
  27. 27.Which is the greatest: 0.662, 0.7, 0.028, 0.75? (a) 0.662 (b) 0.7 (c) 0.028 (d) 0.75
  28. 28.Which is the smallest: 0.6, 0.517, 0.028, 0.68? (a) 0.6 (b) 0.517 (c) 0.028 (d) 0.68
  29. 29.4.25 + 1.7 = ? (a) 5.95 (b) 4.42 (c) 5.85 (d) 6.05
  30. 30.What is the value of the digit 9 in 94.387? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  31. 31.What is the value of the digit 5 in 53.924? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  32. 32.What is the value of the digit 1 in 24.519? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  33. 33.4.65 + 5.9 = ? (a) 10.45 (b) 10.55 (c) 10.65 (d) 5.24
  34. 34.1.26 + 5.4 = ? (a) 6.76 (b) 1.8 (c) 6.56 (d) 6.66
  35. 35.Which is the greatest: 0.241, 0.39, 0.018, 0.3? (a) 0.241 (b) 0.39 (c) 0.018 (d) 0.3
  36. 36.Which is the smallest: 0.619, 0.7, 0.71, 0.029? (a) 0.619 (b) 0.7 (c) 0.71 (d) 0.029
  37. 37.Which is the smallest: 0.47, 0.4, 0.364, 0.018? (a) 0.47 (b) 0.4 (c) 0.364 (d) 0.018
  38. 38.Which is the smallest: 0.65, 0.023, 0.6, 0.564? (a) 0.65 (b) 0.023 (c) 0.6 (d) 0.564
  39. 39.What is the value of the digit 1 in 45.718? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  40. 40.6.71 + 2.2 = ? (a) 9.01 (b) 8.81 (c) 6.93 (d) 8.91

Answer key

  1. 0.005
  2. 0.082
  3. 0.34
  4. 14.29
  5. 4
  6. 0.085
  7. 6.04
  8. 0.07
  9. 9
  10. 0.22
  11. 16.11
  12. 15.44
  13. 12.21
  14. 0.64
  15. 9.66
  16. 0.7
  17. 80
  18. 0.74
  19. 0.005
  20. 0.001
  21. 0.003
  22. 0.6
  23. 10
  24. 5.54
  25. 6.98
  26. 0.072
  27. 0.75
  28. 0.028
  29. 5.95
  30. 90
  31. 50
  32. 0.01
  33. 10.55
  34. 6.66
  35. 0.39
  36. 0.029
  37. 0.018
  38. 0.023
  39. 0.01
  40. 8.91

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