Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 902 · 40 questions

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).

1. 1.Which is the smallest: 0.035, 0.248, 0.3, 0.38? (a) 0.035 (b) 0.248 (c) 0.3 (d) 0.38
2. 2.3.49 + 8.6 = ? (a) 12.19 (b) 12.09 (c) 4.35 (d) 11.99
3. 3.What is the value of the digit 2 in 27.159? (a) 0.02 (b) 20 (c) 2 (d) 0.2
4. 4.6.24 + 8.2 = ? (a) 7.06 (b) 14.34 (c) 14.44 (d) 14.54
5. 5.4.89 + 3.1 = ? (a) 7.99 (b) 5.2 (c) 7.89 (d) 8.09
6. 6.What is the value of the digit 6 in 19.736? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
7. 7.Which is the greatest: 0.76, 0.663, 0.7, 0.075? (a) 0.76 (b) 0.663 (c) 0.7 (d) 0.075
8. 8.6.73 + 2.9 = ? (a) 9.73 (b) 9.53 (c) 7.02 (d) 9.63
9. 9.Which is the smallest: 0.35, 0.058, 0.249, 0.3? (a) 0.35 (b) 0.058 (c) 0.249 (d) 0.3
10. 10.8.35 + 4.7 = ? (a) 13.15 (b) 13.05 (c) 12.95 (d) 8.82
11. 11.Which is the greatest: 0.2, 0.096, 0.29, 0.125? (a) 0.2 (b) 0.096 (c) 0.29 (d) 0.125
12. 12.Which is the smallest: 0.7, 0.679, 0.79, 0.024? (a) 0.7 (b) 0.679 (c) 0.79 (d) 0.024
13. 13.Which is the greatest: 0.466, 0.5, 0.058, 0.57? (a) 0.466 (b) 0.5 (c) 0.058 (d) 0.57
14. 14.Which is the greatest: 0.519, 0.022, 0.66, 0.6? (a) 0.519 (b) 0.022 (c) 0.66 (d) 0.6
15. 15.What is the value of the digit 1 in 94.813? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
16. 16.What is the value of the digit 5 in 26.715? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
17. 17.What is the value of the digit 2 in 46.528? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
18. 18.Which is the smallest: 0.55, 0.015, 0.412, 0.5? (a) 0.55 (b) 0.015 (c) 0.412 (d) 0.5
19. 19.Which is the smallest: 0.39, 0.3, 0.084, 0.215? (a) 0.39 (b) 0.3 (c) 0.084 (d) 0.215
20. 20.Which is the smallest: 0.26, 0.143, 0.073, 0.2? (a) 0.26 (b) 0.143 (c) 0.073 (d) 0.2
21. 21.7.74 + 5.1 = ? (a) 12.74 (b) 12.84 (c) 8.25 (d) 12.94
22. 22.5.55 + 9.5 = ? (a) 14.95 (b) 6.5 (c) 15.05 (d) 15.15
23. 23.4.44 + 5.3 = ? (a) 4.97 (b) 9.74 (c) 9.84 (d) 9.64
24. 24.What is the value of the digit 9 in 81.639? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
25. 25.2.56 + 8.6 = ? (a) 11.16 (b) 3.42 (c) 11.26 (d) 11.06
26. 26.5.81 + 3.3 = ? (a) 6.14 (b) 9.01 (c) 9.21 (d) 9.11
27. 27.Which is the greatest: 0.612, 0.069, 0.73, 0.7? (a) 0.612 (b) 0.069 (c) 0.73 (d) 0.7
28. 28.Which is the smallest: 0.466, 0.073, 0.56, 0.5? (a) 0.466 (b) 0.073 (c) 0.56 (d) 0.5
29. 29.What is the value of the digit 7 in 62.437? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
30. 30.9.61 + 5.6 = ? (a) 15.11 (b) 15.31 (c) 15.21 (d) 10.17
31. 31.Which is the greatest: 0.446, 0.5, 0.092, 0.53? (a) 0.446 (b) 0.5 (c) 0.092 (d) 0.53
32. 32.Which is the smallest: 0.617, 0.78, 0.7, 0.032? (a) 0.617 (b) 0.78 (c) 0.7 (d) 0.032
33. 33.What is the value of the digit 1 in 81.367? (a) 0.1 (b) 10 (c) 0.01 (d) 1
34. 34.What is the value of the digit 2 in 56.724? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
35. 35.Which is the smallest: 0.491, 0.52, 0.033, 0.5? (a) 0.491 (b) 0.52 (c) 0.033 (d) 0.5
36. 36.What is the value of the digit 9 in 58.249? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
37. 37.Which is the smallest: 0.6, 0.565, 0.61, 0.093? (a) 0.6 (b) 0.565 (c) 0.61 (d) 0.093
38. 38.Which is the smallest: 0.2, 0.24, 0.079, 0.167? (a) 0.2 (b) 0.24 (c) 0.079 (d) 0.167
39. 39.What is the value of the digit 7 in 47.129? (a) 70 (b) 0.07 (c) 0.7 (d) 7
40. 40.1.83 + 2.8 = ? (a) 4.53 (b) 2.11 (c) 4.73 (d) 4.63

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