Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 270 · 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. 1.0.63 × 6 — where does the decimal point go? (a) 0.0378 (b) 0.378 (c) 37.8 (d) 3.78
2. 2.0.68 × 39 — where does the decimal point go? (a) 26.52 (b) 2.652 (c) 265.2 (d) 0.2652
3. 3.4.9 × 4 — where does the decimal point go? (a) 196 (b) 19.6 (c) 0.196 (d) 1.96
4. 4.0.81 × 5 — where does the decimal point go? (a) 0.0405 (b) 0.405 (c) 4.05 (d) 40.5
5. 5.8.4 × 0.4 — where does the decimal point go? (a) 0.336 (b) 0.0336 (c) 33.6 (d) 3.36
6. 6.0.84 × 0.9 — where does the decimal point go? (a) 0.0756 (b) 0.00756 (c) 0.756 (d) 7.56
7. 7.9.7 × 28 — where does the decimal point go? (a) 2716 (b) 271.6 (c) 2.716 (d) 27.16
8. 8.3.6 × 6 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 216 (d) 0.216
9. 9.0.99 × 44 — where does the decimal point go? (a) 0.4356 (b) 43.56 (c) 4.356 (d) 435.6
10. 10.0.74 × 0.9 — where does the decimal point go? (a) 0.666 (b) 0.0666 (c) 0.00666 (d) 6.66
11. 11.7.3 × 9 — where does the decimal point go? (a) 6.57 (b) 657 (c) 65.7 (d) 0.657
12. 12.2.3 × 1.1 — where does the decimal point go? (a) 0.0253 (b) 25.3 (c) 2.53 (d) 0.253
13. 13.1.3 × 0.8 — where does the decimal point go? (a) 10.4 (b) 0.104 (c) 0.0104 (d) 1.04
14. 14.0.44 × 0.3 — where does the decimal point go? (a) 0.0132 (b) 1.32 (c) 0.00132 (d) 0.132
15. 15.3.4 × 0.3 — where does the decimal point go? (a) 10.2 (b) 1.02 (c) 0.102 (d) 0.0102
16. 16.0.54 × 14 — where does the decimal point go? (a) 0.756 (b) 75.6 (c) 7.56 (d) 0.0756
17. 17.0.99 × 2 — where does the decimal point go? (a) 1.98 (b) 19.8 (c) 0.198 (d) 0.0198
18. 18.0.31 × 2.2 — where does the decimal point go? (a) 0.682 (b) 0.0682 (c) 0.00682 (d) 6.82
19. 19.2.8 × 7 — where does the decimal point go? (a) 1.96 (b) 19.6 (c) 0.196 (d) 196
20. 20.5.7 × 9 — where does the decimal point go? (a) 0.513 (b) 5.13 (c) 513 (d) 51.3
21. 21.0.89 × 4.5 — where does the decimal point go? (a) 4.005 (b) 0.04005 (c) 40.05 (d) 0.4005
22. 22.7.9 × 0.6 — where does the decimal point go? (a) 0.0474 (b) 4.74 (c) 47.4 (d) 0.474
23. 23.8.2 × 27 — where does the decimal point go? (a) 2.214 (b) 221.4 (c) 2214 (d) 22.14
24. 24.7.2 × 39 — where does the decimal point go? (a) 280.8 (b) 2808 (c) 28.08 (d) 2.808
25. 25.0.98 × 0.6 — where does the decimal point go? (a) 0.00588 (b) 5.88 (c) 0.588 (d) 0.0588
26. 26.3.3 × 0.9 — where does the decimal point go? (a) 2.97 (b) 0.0297 (c) 29.7 (d) 0.297
27. 27.3.9 × 18 — where does the decimal point go? (a) 7.02 (b) 702 (c) 70.2 (d) 0.702
28. 28.0.67 × 6 — where does the decimal point go? (a) 0.402 (b) 0.0402 (c) 40.2 (d) 4.02
29. 29.2.1 × 3 — where does the decimal point go? (a) 63 (b) 6.3 (c) 0.063 (d) 0.63
30. 30.0.93 × 8 — where does the decimal point go? (a) 0.0744 (b) 74.4 (c) 7.44 (d) 0.744
31. 31.0.51 × 6 — where does the decimal point go? (a) 3.06 (b) 30.6 (c) 0.0306 (d) 0.306
32. 32.3.3 × 18 — where does the decimal point go? (a) 594 (b) 59.4 (c) 5.94 (d) 0.594
33. 33.9.8 × 23 — where does the decimal point go? (a) 225.4 (b) 22.54 (c) 2.254 (d) 2254
34. 34.5.7 × 2.4 — where does the decimal point go? (a) 1.368 (b) 0.1368 (c) 13.68 (d) 136.8
35. 35.8.6 × 7 — where does the decimal point go? (a) 0.602 (b) 6.02 (c) 60.2 (d) 602
36. 36.0.13 × 6 — where does the decimal point go? (a) 0.78 (b) 0.078 (c) 7.8 (d) 0.0078
37. 37.3.3 × 0.2 — where does the decimal point go? (a) 0.66 (b) 0.066 (c) 0.0066 (d) 6.6
38. 38.2.4 × 0.7 — where does the decimal point go? (a) 0.168 (b) 1.68 (c) 0.0168 (d) 16.8
39. 39.0.97 × 3.8 — where does the decimal point go? (a) 36.86 (b) 3.686 (c) 0.03686 (d) 0.3686
40. 40.0.84 × 46 — where does the decimal point go? (a) 38.64 (b) 386.4 (c) 0.3864 (d) 3.864

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