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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 838 · 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 6 in 58.746? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  2. 2.Which is the greatest: 0.4, 0.47, 0.355, 0.017? (a) 0.4 (b) 0.47 (c) 0.355 (d) 0.017
  3. 3.2.55 + 1.5 = ? (a) 4.15 (b) 3.95 (c) 2.7 (d) 4.05
  4. 4.Which is the greatest: 0.43, 0.013, 0.4, 0.343? (a) 0.43 (b) 0.013 (c) 0.4 (d) 0.343
  5. 5.What is the value of the digit 7 in 67.523? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  6. 6.What is the value of the digit 9 in 68.952? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  7. 7.What is the value of the digit 3 in 34.126? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  8. 8.What is the value of the digit 2 in 52.984? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  9. 9.Which is the smallest: 0.48, 0.067, 0.4, 0.371? (a) 0.48 (b) 0.067 (c) 0.4 (d) 0.371
  10. 10.8.93 + 4.8 = ? (a) 13.83 (b) 13.73 (c) 9.41 (d) 13.63
  11. 11.What is the value of the digit 2 in 62.734? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  12. 12.What is the value of the digit 2 in 12.873? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  13. 13.4.81 + 3.9 = ? (a) 8.71 (b) 8.81 (c) 5.2 (d) 8.61
  14. 14.What is the value of the digit 8 in 37.861? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  15. 15.Which is the smallest: 0.4, 0.44, 0.378, 0.081? (a) 0.4 (b) 0.44 (c) 0.378 (d) 0.081
  16. 16.Which is the greatest: 0.28, 0.086, 0.195, 0.2? (a) 0.28 (b) 0.086 (c) 0.195 (d) 0.2
  17. 17.What is the value of the digit 9 in 37.619? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  18. 18.2.72 + 5.2 = ? (a) 8.02 (b) 7.82 (c) 3.24 (d) 7.92
  19. 19.Which is the greatest: 0.139, 0.2, 0.041, 0.21? (a) 0.139 (b) 0.2 (c) 0.041 (d) 0.21
  20. 20.What is the value of the digit 7 in 89.715? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  21. 21.Which is the smallest: 0.043, 0.63, 0.512, 0.6? (a) 0.043 (b) 0.63 (c) 0.512 (d) 0.6
  22. 22.Which is the smallest: 0.784, 0.87, 0.037, 0.8? (a) 0.784 (b) 0.87 (c) 0.037 (d) 0.8
  23. 23.Which is the greatest: 0.21, 0.189, 0.087, 0.2? (a) 0.21 (b) 0.189 (c) 0.087 (d) 0.2
  24. 24.Which is the greatest: 0.84, 0.777, 0.8, 0.014? (a) 0.84 (b) 0.777 (c) 0.8 (d) 0.014
  25. 25.Which is the smallest: 0.288, 0.3, 0.39, 0.041? (a) 0.288 (b) 0.3 (c) 0.39 (d) 0.041
  26. 26.5.35 + 9.2 = ? (a) 6.27 (b) 14.55 (c) 14.45 (d) 14.65
  27. 27.Which is the smallest: 0.26, 0.024, 0.175, 0.2? (a) 0.26 (b) 0.024 (c) 0.175 (d) 0.2
  28. 28.Which is the greatest: 0.34, 0.248, 0.014, 0.3? (a) 0.34 (b) 0.248 (c) 0.014 (d) 0.3
  29. 29.Which is the smallest: 0.7, 0.75, 0.625, 0.015? (a) 0.7 (b) 0.75 (c) 0.625 (d) 0.015
  30. 30.What is the value of the digit 6 in 72.386? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  31. 31.What is the value of the digit 2 in 85.219? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  32. 32.2.88 + 3.4 = ? (a) 6.38 (b) 6.18 (c) 3.22 (d) 6.28
  33. 33.6.21 + 4.7 = ? (a) 11.01 (b) 6.68 (c) 10.81 (d) 10.91
  34. 34.What is the value of the digit 1 in 94.613? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  35. 35.What is the value of the digit 4 in 46.519? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  36. 36.5.42 + 2.7 = ? (a) 8.12 (b) 8.22 (c) 5.69 (d) 8.02
  37. 37.5.51 + 9.9 = ? (a) 6.5 (b) 15.31 (c) 15.41 (d) 15.51
  38. 38.What is the value of the digit 8 in 78.631? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  39. 39.2.91 + 3.4 = ? (a) 6.41 (b) 6.21 (c) 6.31 (d) 3.25
  40. 40.What is the value of the digit 3 in 29.358? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003

Answer key

  1. 0.006
  2. 0.47
  3. 4.05
  4. 0.43
  5. 7
  6. 0.9
  7. 30
  8. 2
  9. 0.067
  10. 13.73
  11. 2
  12. 2
  13. 8.71
  14. 0.8
  15. 0.081
  16. 0.28
  17. 0.009
  18. 7.92
  19. 0.21
  20. 0.7
  21. 0.043
  22. 0.037
  23. 0.21
  24. 0.84
  25. 0.041
  26. 14.55
  27. 0.024
  28. 0.34
  29. 0.015
  30. 0.006
  31. 0.2
  32. 6.28
  33. 10.91
  34. 0.01
  35. 40
  36. 8.12
  37. 15.41
  38. 8
  39. 6.31
  40. 0.3

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