Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 788 · 40 questions

The trick (Count the places): Forget the points and multiply the whole numbers. Count all the digits after the points in the question. Put the point that many places from the right, then check by rounding.

1. 1.0.22 × 0.2 — where does the decimal point go? (a) 0.0044 (b) 0.44 (c) 0.044 (d) 0.00044
2. 2.0.38 × 19 — where does the decimal point go? (a) 72.2 (b) 0.722 (c) 7.22 (d) 0.0722
3. 3.2.3 × 0.5 — where does the decimal point go? (a) 0.0115 (b) 1.15 (c) 11.5 (d) 0.115
4. 4.0.68 × 0.3 — where does the decimal point go? (a) 2.04 (b) 0.00204 (c) 0.204 (d) 0.0204
5. 5.0.73 × 0.9 — where does the decimal point go? (a) 0.00657 (b) 0.0657 (c) 6.57 (d) 0.657
6. 6.0.96 × 0.7 — where does the decimal point go? (a) 0.0672 (b) 6.72 (c) 0.00672 (d) 0.672
7. 7.7.8 × 37 — where does the decimal point go? (a) 288.6 (b) 2886 (c) 2.886 (d) 28.86
8. 8.0.34 × 7 — where does the decimal point go? (a) 0.0238 (b) 23.8 (c) 0.238 (d) 2.38
9. 9.0.67 × 23 — where does the decimal point go? (a) 15.41 (b) 1.541 (c) 0.1541 (d) 154.1
10. 10.8.1 × 0.7 — where does the decimal point go? (a) 0.567 (b) 0.0567 (c) 5.67 (d) 56.7
11. 11.0.38 × 16 — where does the decimal point go? (a) 0.608 (b) 0.0608 (c) 6.08 (d) 60.8
12. 12.0.72 × 33 — where does the decimal point go? (a) 237.6 (b) 0.2376 (c) 23.76 (d) 2.376
13. 13.0.38 × 3 — where does the decimal point go? (a) 0.0114 (b) 11.4 (c) 1.14 (d) 0.114
14. 14.0.99 × 6 — where does the decimal point go? (a) 5.94 (b) 59.4 (c) 0.0594 (d) 0.594
15. 15.1.8 × 0.7 — where does the decimal point go? (a) 1.26 (b) 12.6 (c) 0.0126 (d) 0.126
16. 16.0.76 × 41 — where does the decimal point go? (a) 0.3116 (b) 311.6 (c) 3.116 (d) 31.16
17. 17.0.12 × 3 — where does the decimal point go? (a) 0.36 (b) 3.6 (c) 0.0036 (d) 0.036
18. 18.0.28 × 4 — where does the decimal point go? (a) 1.12 (b) 11.2 (c) 0.0112 (d) 0.112
19. 19.0.71 × 0.7 — where does the decimal point go? (a) 4.97 (b) 0.497 (c) 0.0497 (d) 0.00497
20. 20.6.5 × 49 — where does the decimal point go? (a) 3.185 (b) 31.85 (c) 318.5 (d) 3185
21. 21.3.3 × 0.4 — where does the decimal point go? (a) 0.132 (b) 1.32 (c) 13.2 (d) 0.0132
22. 22.1.6 × 0.9 — where does the decimal point go? (a) 0.144 (b) 1.44 (c) 0.0144 (d) 14.4
23. 23.0.62 × 2 — where does the decimal point go? (a) 0.0124 (b) 1.24 (c) 12.4 (d) 0.124
24. 24.0.64 × 19 — where does the decimal point go? (a) 121.6 (b) 0.1216 (c) 12.16 (d) 1.216
25. 25.2.7 × 4.6 — where does the decimal point go? (a) 0.1242 (b) 124.2 (c) 12.42 (d) 1.242
26. 26.0.34 × 11 — where does the decimal point go? (a) 37.4 (b) 0.0374 (c) 3.74 (d) 0.374
27. 27.0.12 × 4 — where does the decimal point go? (a) 0.0048 (b) 0.048 (c) 4.8 (d) 0.48
28. 28.6.9 × 2 — where does the decimal point go? (a) 1.38 (b) 13.8 (c) 0.138 (d) 138
29. 29.8.6 × 42 — where does the decimal point go? (a) 3.612 (b) 361.2 (c) 36.12 (d) 3612
30. 30.1.2 × 0.4 — where does the decimal point go? (a) 0.48 (b) 4.8 (c) 0.048 (d) 0.0048
31. 31.0.58 × 0.6 — where does the decimal point go? (a) 0.00348 (b) 3.48 (c) 0.0348 (d) 0.348
32. 32.0.89 × 9 — where does the decimal point go? (a) 80.1 (b) 0.0801 (c) 8.01 (d) 0.801
33. 33.9.8 × 9 — where does the decimal point go? (a) 8.82 (b) 882 (c) 0.882 (d) 88.2
34. 34.6.3 × 33 — where does the decimal point go? (a) 20.79 (b) 207.9 (c) 2079 (d) 2.079
35. 35.0.71 × 4.9 — where does the decimal point go? (a) 0.03479 (b) 34.79 (c) 0.3479 (d) 3.479
36. 36.0.39 × 4.7 — where does the decimal point go? (a) 0.1833 (b) 18.33 (c) 1.833 (d) 0.01833
37. 37.7.6 × 4.6 — where does the decimal point go? (a) 0.3496 (b) 3.496 (c) 349.6 (d) 34.96
38. 38.1.8 × 47 — where does the decimal point go? (a) 846 (b) 84.6 (c) 8.46 (d) 0.846
39. 39.0.58 × 6 — where does the decimal point go? (a) 34.8 (b) 3.48 (c) 0.348 (d) 0.0348
40. 40.0.61 × 7 — where does the decimal point go? (a) 0.0427 (b) 0.427 (c) 4.27 (d) 42.7

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