Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 207 · 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. 1.0.29 × 0.7 — where does the decimal point go? (a) 2.03 (b) 0.0203 (c) 0.00203 (d) 0.203
2. 2.7.2 × 0.3 — where does the decimal point go? (a) 2.16 (b) 21.6 (c) 0.216 (d) 0.0216
3. 3.0.43 × 1.6 — where does the decimal point go? (a) 0.0688 (b) 6.88 (c) 0.688 (d) 0.00688
4. 4.0.51 × 1.8 — where does the decimal point go? (a) 9.18 (b) 0.00918 (c) 0.0918 (d) 0.918
5. 5.0.77 × 0.4 — where does the decimal point go? (a) 3.08 (b) 0.00308 (c) 0.308 (d) 0.0308
6. 6.3.3 × 8 — where does the decimal point go? (a) 0.264 (b) 2.64 (c) 264 (d) 26.4
7. 7.0.84 × 1.1 — where does the decimal point go? (a) 0.00924 (b) 9.24 (c) 0.0924 (d) 0.924
8. 8.3.1 × 35 — where does the decimal point go? (a) 1085 (b) 1.085 (c) 10.85 (d) 108.5
9. 9.5.2 × 2.3 — where does the decimal point go? (a) 119.6 (b) 11.96 (c) 1.196 (d) 0.1196
10. 10.8.6 × 0.2 — where does the decimal point go? (a) 17.2 (b) 0.0172 (c) 0.172 (d) 1.72
11. 11.3.5 × 49 — where does the decimal point go? (a) 17.15 (b) 171.5 (c) 1.715 (d) 1715
12. 12.8.9 × 7 — where does the decimal point go? (a) 62.3 (b) 6.23 (c) 0.623 (d) 623
13. 13.9.1 × 12 — where does the decimal point go? (a) 10.92 (b) 109.2 (c) 1.092 (d) 1092
14. 14.7.4 × 26 — where does the decimal point go? (a) 19.24 (b) 192.4 (c) 1924 (d) 1.924
15. 15.0.91 × 4.9 — where does the decimal point go? (a) 0.04459 (b) 44.59 (c) 4.459 (d) 0.4459
16. 16.6.5 × 3 — where does the decimal point go? (a) 1.95 (b) 0.195 (c) 19.5 (d) 195
17. 17.0.59 × 3 — where does the decimal point go? (a) 0.177 (b) 1.77 (c) 17.7 (d) 0.0177
18. 18.0.34 × 6 — where does the decimal point go? (a) 2.04 (b) 0.0204 (c) 20.4 (d) 0.204
19. 19.0.86 × 19 — where does the decimal point go? (a) 0.1634 (b) 1.634 (c) 16.34 (d) 163.4
20. 20.4.6 × 48 — where does the decimal point go? (a) 22.08 (b) 2208 (c) 220.8 (d) 2.208
21. 21.0.94 × 4 — where does the decimal point go? (a) 3.76 (b) 37.6 (c) 0.0376 (d) 0.376
22. 22.0.15 × 0.9 — where does the decimal point go? (a) 1.35 (b) 0.00135 (c) 0.135 (d) 0.0135
23. 23.3.6 × 7 — where does the decimal point go? (a) 252 (b) 2.52 (c) 0.252 (d) 25.2
24. 24.5.9 × 34 — where does the decimal point go? (a) 200.6 (b) 20.06 (c) 2006 (d) 2.006
25. 25.6.8 × 3 — where does the decimal point go? (a) 0.204 (b) 2.04 (c) 20.4 (d) 204
26. 26.0.47 × 7 — where does the decimal point go? (a) 0.0329 (b) 32.9 (c) 0.329 (d) 3.29
27. 27.0.72 × 46 — where does the decimal point go? (a) 33.12 (b) 3.312 (c) 331.2 (d) 0.3312
28. 28.0.66 × 2.8 — where does the decimal point go? (a) 0.1848 (b) 0.01848 (c) 18.48 (d) 1.848
29. 29.0.93 × 4.4 — where does the decimal point go? (a) 0.4092 (b) 4.092 (c) 40.92 (d) 0.04092
30. 30.0.59 × 2.4 — where does the decimal point go? (a) 14.16 (b) 0.1416 (c) 0.01416 (d) 1.416
31. 31.0.95 × 5 — where does the decimal point go? (a) 4.75 (b) 47.5 (c) 0.0475 (d) 0.475
32. 32.0.84 × 0.8 — where does the decimal point go? (a) 0.0672 (b) 0.00672 (c) 0.672 (d) 6.72
33. 33.8.8 × 1.6 — where does the decimal point go? (a) 140.8 (b) 0.1408 (c) 1.408 (d) 14.08
34. 34.0.19 × 28 — where does the decimal point go? (a) 5.32 (b) 0.0532 (c) 53.2 (d) 0.532
35. 35.2.4 × 0.3 — where does the decimal point go? (a) 7.2 (b) 0.72 (c) 0.0072 (d) 0.072
36. 36.0.58 × 0.3 — where does the decimal point go? (a) 0.00174 (b) 1.74 (c) 0.0174 (d) 0.174
37. 37.0.73 × 2 — where does the decimal point go? (a) 0.0146 (b) 1.46 (c) 0.146 (d) 14.6
38. 38.0.57 × 4 — where does the decimal point go? (a) 2.28 (b) 0.228 (c) 22.8 (d) 0.0228
39. 39.0.81 × 0.2 — where does the decimal point go? (a) 1.62 (b) 0.0162 (c) 0.162 (d) 0.00162
40. 40.4.6 × 2 — where does the decimal point go? (a) 92 (b) 0.92 (c) 9.2 (d) 0.092

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