Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 279 · 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. 1.0.76 × 2.7 — where does the decimal point go? (a) 2.052 (b) 0.2052 (c) 0.02052 (d) 20.52
2. 2.0.91 × 3 — where does the decimal point go? (a) 27.3 (b) 2.73 (c) 0.273 (d) 0.0273
3. 3.2.4 × 0.6 — where does the decimal point go? (a) 14.4 (b) 0.144 (c) 0.0144 (d) 1.44
4. 4.0.83 × 0.6 — where does the decimal point go? (a) 0.498 (b) 0.0498 (c) 4.98 (d) 0.00498
5. 5.3.2 × 0.4 — where does the decimal point go? (a) 12.8 (b) 1.28 (c) 0.0128 (d) 0.128
6. 6.0.45 × 0.5 — where does the decimal point go? (a) 0.00225 (b) 0.225 (c) 0.0225 (d) 2.25
7. 7.0.73 × 23 — where does the decimal point go? (a) 167.9 (b) 1.679 (c) 16.79 (d) 0.1679
8. 8.6.5 × 1.7 — where does the decimal point go? (a) 11.05 (b) 110.5 (c) 0.1105 (d) 1.105
9. 9.3.5 × 0.5 — where does the decimal point go? (a) 0.0175 (b) 17.5 (c) 0.175 (d) 1.75
10. 10.5.9 × 8 — where does the decimal point go? (a) 472 (b) 4.72 (c) 47.2 (d) 0.472
11. 11.0.81 × 44 — where does the decimal point go? (a) 3.564 (b) 356.4 (c) 35.64 (d) 0.3564
12. 12.0.29 × 4 — where does the decimal point go? (a) 11.6 (b) 0.0116 (c) 0.116 (d) 1.16
13. 13.4.8 × 11 — where does the decimal point go? (a) 528 (b) 0.528 (c) 5.28 (d) 52.8
14. 14.0.54 × 12 — where does the decimal point go? (a) 0.648 (b) 6.48 (c) 64.8 (d) 0.0648
15. 15.2.2 × 7 — where does the decimal point go? (a) 0.154 (b) 15.4 (c) 154 (d) 1.54
16. 16.0.88 × 9 — where does the decimal point go? (a) 0.792 (b) 0.0792 (c) 7.92 (d) 79.2
17. 17.0.19 × 0.3 — where does the decimal point go? (a) 0.57 (b) 0.057 (c) 0.00057 (d) 0.0057
18. 18.5.8 × 9 — where does the decimal point go? (a) 0.522 (b) 5.22 (c) 522 (d) 52.2
19. 19.0.19 × 1.9 — where does the decimal point go? (a) 3.61 (b) 0.0361 (c) 0.00361 (d) 0.361
20. 20.0.94 × 0.8 — where does the decimal point go? (a) 0.752 (b) 0.0752 (c) 0.00752 (d) 7.52
21. 21.5.6 × 2 — where does the decimal point go? (a) 112 (b) 0.112 (c) 1.12 (d) 11.2
22. 22.9.2 × 2 — where does the decimal point go? (a) 18.4 (b) 0.184 (c) 1.84 (d) 184
23. 23.1.4 × 0.9 — where does the decimal point go? (a) 1.26 (b) 0.0126 (c) 12.6 (d) 0.126
24. 24.0.48 × 2 — where does the decimal point go? (a) 0.096 (b) 0.0096 (c) 9.6 (d) 0.96
25. 25.0.54 × 1.7 — where does the decimal point go? (a) 9.18 (b) 0.0918 (c) 0.918 (d) 0.00918
26. 26.9.2 × 0.6 — where does the decimal point go? (a) 0.552 (b) 5.52 (c) 55.2 (d) 0.0552
27. 27.0.54 × 2 — where does the decimal point go? (a) 0.0108 (b) 10.8 (c) 1.08 (d) 0.108
28. 28.6.9 × 39 — where does the decimal point go? (a) 26.91 (b) 2.691 (c) 269.1 (d) 2691
29. 29.8.9 × 0.6 — where does the decimal point go? (a) 0.534 (b) 5.34 (c) 53.4 (d) 0.0534
30. 30.0.28 × 7 — where does the decimal point go? (a) 0.0196 (b) 1.96 (c) 19.6 (d) 0.196
31. 31.6.6 × 3.8 — where does the decimal point go? (a) 0.2508 (b) 25.08 (c) 250.8 (d) 2.508
32. 32.0.27 × 3 — where does the decimal point go? (a) 0.81 (b) 8.1 (c) 0.081 (d) 0.0081
33. 33.7.2 × 44 — where does the decimal point go? (a) 3168 (b) 3.168 (c) 31.68 (d) 316.8
34. 34.9.9 × 29 — where does the decimal point go? (a) 2.871 (b) 287.1 (c) 28.71 (d) 2871
35. 35.6.1 × 4.4 — where does the decimal point go? (a) 0.2684 (b) 26.84 (c) 268.4 (d) 2.684
36. 36.0.14 × 16 — where does the decimal point go? (a) 2.24 (b) 0.224 (c) 0.0224 (d) 22.4
37. 37.0.13 × 4.8 — where does the decimal point go? (a) 0.00624 (b) 6.24 (c) 0.624 (d) 0.0624
38. 38.2.8 × 17 — where does the decimal point go? (a) 47.6 (b) 4.76 (c) 476 (d) 0.476
39. 39.0.86 × 0.8 — where does the decimal point go? (a) 0.688 (b) 6.88 (c) 0.00688 (d) 0.0688
40. 40.8.8 × 31 — where does the decimal point go? (a) 2728 (b) 272.8 (c) 2.728 (d) 27.28

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