Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 468 · 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. 1.6.4 × 0.4 — where does the decimal point go? (a) 0.0256 (b) 25.6 (c) 2.56 (d) 0.256
2. 2.0.36 × 22 — where does the decimal point go? (a) 79.2 (b) 0.792 (c) 7.92 (d) 0.0792
3. 3.0.98 × 2.3 — where does the decimal point go? (a) 2.254 (b) 22.54 (c) 0.2254 (d) 0.02254
4. 4.6.3 × 4.6 — where does the decimal point go? (a) 28.98 (b) 289.8 (c) 2.898 (d) 0.2898
5. 5.6.5 × 31 — where does the decimal point go? (a) 20.15 (b) 201.5 (c) 2015 (d) 2.015
6. 6.8.3 × 3.5 — where does the decimal point go? (a) 2.905 (b) 0.2905 (c) 290.5 (d) 29.05
7. 7.0.96 × 22 — where does the decimal point go? (a) 2.112 (b) 211.2 (c) 0.2112 (d) 21.12
8. 8.0.94 × 18 — where does the decimal point go? (a) 16.92 (b) 169.2 (c) 1.692 (d) 0.1692
9. 9.1.2 × 28 — where does the decimal point go? (a) 0.336 (b) 33.6 (c) 3.36 (d) 336
10. 10.8.3 × 2.1 — where does the decimal point go? (a) 174.3 (b) 1.743 (c) 0.1743 (d) 17.43
11. 11.0.19 × 48 — where does the decimal point go? (a) 9.12 (b) 91.2 (c) 0.912 (d) 0.0912
12. 12.9.1 × 0.5 — where does the decimal point go? (a) 4.55 (b) 0.455 (c) 45.5 (d) 0.0455
13. 13.4.7 × 0.2 — where does the decimal point go? (a) 0.094 (b) 0.0094 (c) 9.4 (d) 0.94
14. 14.0.26 × 4.3 — where does the decimal point go? (a) 0.01118 (b) 1.118 (c) 11.18 (d) 0.1118
15. 15.2.1 × 9 — where does the decimal point go? (a) 0.189 (b) 18.9 (c) 1.89 (d) 189
16. 16.4.6 × 4 — where does the decimal point go? (a) 18.4 (b) 0.184 (c) 184 (d) 1.84
17. 17.5.4 × 26 — where does the decimal point go? (a) 140.4 (b) 14.04 (c) 1404 (d) 1.404
18. 18.6.3 × 0.8 — where does the decimal point go? (a) 50.4 (b) 0.0504 (c) 5.04 (d) 0.504
19. 19.9.7 × 3 — where does the decimal point go? (a) 0.291 (b) 291 (c) 2.91 (d) 29.1
20. 20.7.7 × 6 — where does the decimal point go? (a) 4.62 (b) 0.462 (c) 46.2 (d) 462
21. 21.0.77 × 4 — where does the decimal point go? (a) 0.0308 (b) 30.8 (c) 0.308 (d) 3.08
22. 22.2.4 × 18 — where does the decimal point go? (a) 43.2 (b) 0.432 (c) 432 (d) 4.32
23. 23.0.97 × 15 — where does the decimal point go? (a) 1.455 (b) 145.5 (c) 0.1455 (d) 14.55
24. 24.0.33 × 14 — where does the decimal point go? (a) 0.462 (b) 4.62 (c) 0.0462 (d) 46.2
25. 25.0.67 × 0.7 — where does the decimal point go? (a) 0.469 (b) 4.69 (c) 0.0469 (d) 0.00469
26. 26.6.1 × 4.8 — where does the decimal point go? (a) 2.928 (b) 0.2928 (c) 29.28 (d) 292.8
27. 27.0.33 × 4.7 — where does the decimal point go? (a) 0.1551 (b) 1.551 (c) 0.01551 (d) 15.51
28. 28.1.9 × 6 — where does the decimal point go? (a) 1.14 (b) 0.114 (c) 114 (d) 11.4
29. 29.6.4 × 6 — where does the decimal point go? (a) 3.84 (b) 0.384 (c) 384 (d) 38.4
30. 30.0.91 × 0.5 — where does the decimal point go? (a) 0.0455 (b) 0.455 (c) 0.00455 (d) 4.55
31. 31.9.3 × 3.2 — where does the decimal point go? (a) 29.76 (b) 0.2976 (c) 2.976 (d) 297.6
32. 32.0.55 × 0.5 — where does the decimal point go? (a) 0.0275 (b) 2.75 (c) 0.275 (d) 0.00275
33. 33.3.3 × 6 — where does the decimal point go? (a) 0.198 (b) 1.98 (c) 19.8 (d) 198
34. 34.0.75 × 3 — where does the decimal point go? (a) 0.0225 (b) 22.5 (c) 2.25 (d) 0.225
35. 35.5.3 × 3.8 — where does the decimal point go? (a) 0.2014 (b) 20.14 (c) 201.4 (d) 2.014
36. 36.1.2 × 49 — where does the decimal point go? (a) 0.588 (b) 5.88 (c) 588 (d) 58.8
37. 37.7.6 × 4 — where does the decimal point go? (a) 304 (b) 3.04 (c) 0.304 (d) 30.4
38. 38.7.7 × 35 — where does the decimal point go? (a) 269.5 (b) 2695 (c) 2.695 (d) 26.95
39. 39.0.98 × 2.2 — where does the decimal point go? (a) 0.2156 (b) 21.56 (c) 0.02156 (d) 2.156
40. 40.0.58 × 2.4 — where does the decimal point go? (a) 0.01392 (b) 1.392 (c) 13.92 (d) 0.1392

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