Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 920 · 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. 1.4.2 × 2.2 — where does the decimal point go? (a) 9.24 (b) 0.0924 (c) 92.4 (d) 0.924
2. 2.0.67 × 4 — where does the decimal point go? (a) 0.268 (b) 2.68 (c) 0.0268 (d) 26.8
3. 3.6.1 × 0.7 — where does the decimal point go? (a) 0.427 (b) 4.27 (c) 0.0427 (d) 42.7
4. 4.0.66 × 14 — where does the decimal point go? (a) 92.4 (b) 0.924 (c) 9.24 (d) 0.0924
5. 5.0.72 × 37 — where does the decimal point go? (a) 266.4 (b) 2.664 (c) 0.2664 (d) 26.64
6. 6.7.7 × 9 — where does the decimal point go? (a) 69.3 (b) 0.693 (c) 6.93 (d) 693
7. 7.0.71 × 4 — where does the decimal point go? (a) 0.284 (b) 2.84 (c) 0.0284 (d) 28.4
8. 8.0.32 × 3 — where does the decimal point go? (a) 0.0096 (b) 0.096 (c) 9.6 (d) 0.96
9. 9.0.91 × 5 — where does the decimal point go? (a) 0.455 (b) 4.55 (c) 0.0455 (d) 45.5
10. 10.0.34 × 3 — where does the decimal point go? (a) 10.2 (b) 0.0102 (c) 0.102 (d) 1.02
11. 11.0.31 × 0.2 — where does the decimal point go? (a) 0.062 (b) 0.0062 (c) 0.00062 (d) 0.62
12. 12.0.92 × 0.8 — where does the decimal point go? (a) 0.0736 (b) 0.736 (c) 0.00736 (d) 7.36
13. 13.0.18 × 21 — where does the decimal point go? (a) 37.8 (b) 0.378 (c) 0.0378 (d) 3.78
14. 14.0.98 × 0.3 — where does the decimal point go? (a) 0.0294 (b) 0.00294 (c) 2.94 (d) 0.294
15. 15.6.1 × 32 — where does the decimal point go? (a) 1.952 (b) 19.52 (c) 1952 (d) 195.2
16. 16.0.72 × 3 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 0.216 (d) 0.0216
17. 17.0.27 × 3.4 — where does the decimal point go? (a) 0.918 (b) 0.0918 (c) 9.18 (d) 0.00918
18. 18.0.98 × 0.2 — where does the decimal point go? (a) 1.96 (b) 0.00196 (c) 0.196 (d) 0.0196
19. 19.5.8 × 2 — where does the decimal point go? (a) 0.116 (b) 116 (c) 11.6 (d) 1.16
20. 20.0.14 × 2 — where does the decimal point go? (a) 0.28 (b) 0.0028 (c) 2.8 (d) 0.028
21. 21.5.6 × 33 — where does the decimal point go? (a) 18.48 (b) 184.8 (c) 1.848 (d) 1848
22. 22.8.3 × 1.1 — where does the decimal point go? (a) 9.13 (b) 0.913 (c) 91.3 (d) 0.0913
23. 23.0.51 × 0.3 — where does the decimal point go? (a) 0.00153 (b) 0.0153 (c) 0.153 (d) 1.53
24. 24.2.5 × 0.3 — where does the decimal point go? (a) 0.075 (b) 0.0075 (c) 0.75 (d) 7.5
25. 25.0.35 × 7 — where does the decimal point go? (a) 24.5 (b) 0.0245 (c) 2.45 (d) 0.245
26. 26.0.12 × 0.3 — where does the decimal point go? (a) 0.36 (b) 0.00036 (c) 0.0036 (d) 0.036
27. 27.6.3 × 2 — where does the decimal point go? (a) 126 (b) 1.26 (c) 0.126 (d) 12.6
28. 28.4.4 × 3.1 — where does the decimal point go? (a) 0.1364 (b) 136.4 (c) 13.64 (d) 1.364
29. 29.4.8 × 24 — where does the decimal point go? (a) 1.152 (b) 115.2 (c) 11.52 (d) 1152
30. 30.0.15 × 0.3 — where does the decimal point go? (a) 0.45 (b) 0.00045 (c) 0.045 (d) 0.0045
31. 31.4.8 × 0.9 — where does the decimal point go? (a) 43.2 (b) 0.0432 (c) 0.432 (d) 4.32
32. 32.4.9 × 48 — where does the decimal point go? (a) 235.2 (b) 2352 (c) 2.352 (d) 23.52
33. 33.4.7 × 8 — where does the decimal point go? (a) 376 (b) 0.376 (c) 3.76 (d) 37.6
34. 34.0.93 × 2 — where does the decimal point go? (a) 1.86 (b) 0.186 (c) 18.6 (d) 0.0186
35. 35.1.4 × 49 — where does the decimal point go? (a) 6.86 (b) 0.686 (c) 68.6 (d) 686
36. 36.7.4 × 1.1 — where does the decimal point go? (a) 81.4 (b) 0.814 (c) 8.14 (d) 0.0814
37. 37.3.3 × 3.8 — where does the decimal point go? (a) 0.1254 (b) 125.4 (c) 12.54 (d) 1.254
38. 38.0.34 × 4 — where does the decimal point go? (a) 1.36 (b) 13.6 (c) 0.136 (d) 0.0136
39. 39.0.94 × 21 — where does the decimal point go? (a) 19.74 (b) 1.974 (c) 197.4 (d) 0.1974
40. 40.0.99 × 0.2 — where does the decimal point go? (a) 0.00198 (b) 1.98 (c) 0.0198 (d) 0.198

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