Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 564 · 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. 1.0.38 × 0.2 — where does the decimal point go? (a) 0.00076 (b) 0.0076 (c) 0.76 (d) 0.076
2. 2.0.84 × 2 — where does the decimal point go? (a) 1.68 (b) 0.168 (c) 16.8 (d) 0.0168
3. 3.0.31 × 24 — where does the decimal point go? (a) 7.44 (b) 0.0744 (c) 0.744 (d) 74.4
4. 4.0.24 × 2.4 — where does the decimal point go? (a) 0.00576 (b) 0.576 (c) 5.76 (d) 0.0576
5. 5.0.22 × 9 — where does the decimal point go? (a) 0.0198 (b) 1.98 (c) 0.198 (d) 19.8
6. 6.0.19 × 0.2 — where does the decimal point go? (a) 0.38 (b) 0.00038 (c) 0.038 (d) 0.0038
7. 7.0.24 × 9 — where does the decimal point go? (a) 0.216 (b) 0.0216 (c) 21.6 (d) 2.16
8. 8.2.2 × 34 — where does the decimal point go? (a) 0.748 (b) 7.48 (c) 748 (d) 74.8
9. 9.0.18 × 9 — where does the decimal point go? (a) 1.62 (b) 16.2 (c) 0.162 (d) 0.0162
10. 10.1.9 × 3.2 — where does the decimal point go? (a) 60.8 (b) 0.0608 (c) 0.608 (d) 6.08
11. 11.0.71 × 15 — where does the decimal point go? (a) 1.065 (b) 106.5 (c) 10.65 (d) 0.1065
12. 12.5.3 × 47 — where does the decimal point go? (a) 24.91 (b) 2491 (c) 249.1 (d) 2.491
13. 13.9.4 × 9 — where does the decimal point go? (a) 0.846 (b) 8.46 (c) 846 (d) 84.6
14. 14.4.7 × 3.1 — where does the decimal point go? (a) 1.457 (b) 145.7 (c) 14.57 (d) 0.1457
15. 15.4.3 × 1.8 — where does the decimal point go? (a) 77.4 (b) 7.74 (c) 0.774 (d) 0.0774
16. 16.9.3 × 6 — where does the decimal point go? (a) 55.8 (b) 5.58 (c) 0.558 (d) 558
17. 17.0.38 × 4 — where does the decimal point go? (a) 1.52 (b) 0.152 (c) 15.2 (d) 0.0152
18. 18.8.7 × 39 — where does the decimal point go? (a) 3393 (b) 3.393 (c) 33.93 (d) 339.3
19. 19.0.43 × 0.9 — where does the decimal point go? (a) 3.87 (b) 0.0387 (c) 0.00387 (d) 0.387
20. 20.3.6 × 24 — where does the decimal point go? (a) 864 (b) 86.4 (c) 0.864 (d) 8.64
21. 21.0.32 × 7 — where does the decimal point go? (a) 0.0224 (b) 0.224 (c) 22.4 (d) 2.24
22. 22.5.3 × 0.2 — where does the decimal point go? (a) 1.06 (b) 10.6 (c) 0.0106 (d) 0.106
23. 23.3.8 × 29 — where does the decimal point go? (a) 110.2 (b) 11.02 (c) 1.102 (d) 1102
24. 24.1.9 × 0.3 — where does the decimal point go? (a) 0.057 (b) 0.57 (c) 5.7 (d) 0.0057
25. 25.0.81 × 0.6 — where does the decimal point go? (a) 0.486 (b) 0.00486 (c) 4.86 (d) 0.0486
26. 26.5.3 × 2.1 — where does the decimal point go? (a) 0.1113 (b) 1.113 (c) 111.3 (d) 11.13
27. 27.0.39 × 3 — where does the decimal point go? (a) 11.7 (b) 0.117 (c) 1.17 (d) 0.0117
28. 28.6.6 × 7 — where does the decimal point go? (a) 46.2 (b) 462 (c) 4.62 (d) 0.462
29. 29.0.15 × 1.9 — where does the decimal point go? (a) 2.85 (b) 0.285 (c) 0.00285 (d) 0.0285
30. 30.0.42 × 0.2 — where does the decimal point go? (a) 0.00084 (b) 0.084 (c) 0.0084 (d) 0.84
31. 31.0.77 × 0.6 — where does the decimal point go? (a) 4.62 (b) 0.0462 (c) 0.462 (d) 0.00462
32. 32.2.3 × 3 — where does the decimal point go? (a) 69 (b) 6.9 (c) 0.69 (d) 0.069
33. 33.6.1 × 48 — where does the decimal point go? (a) 292.8 (b) 29.28 (c) 2.928 (d) 2928
34. 34.5.2 × 4.2 — where does the decimal point go? (a) 0.2184 (b) 2.184 (c) 218.4 (d) 21.84
35. 35.1.4 × 1.6 — where does the decimal point go? (a) 22.4 (b) 0.224 (c) 0.0224 (d) 2.24
36. 36.8.1 × 17 — where does the decimal point go? (a) 1377 (b) 13.77 (c) 1.377 (d) 137.7
37. 37.0.68 × 2.9 — where does the decimal point go? (a) 1.972 (b) 0.1972 (c) 0.01972 (d) 19.72
38. 38.0.34 × 2.1 — where does the decimal point go? (a) 0.0714 (b) 0.00714 (c) 7.14 (d) 0.714
39. 39.7.1 × 6 — where does the decimal point go? (a) 426 (b) 42.6 (c) 4.26 (d) 0.426
40. 40.0.27 × 2.1 — where does the decimal point go? (a) 0.567 (b) 0.00567 (c) 5.67 (d) 0.0567

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