Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 368 · 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. 1.0.13 × 0.9 — where does the decimal point go? (a) 0.00117 (b) 0.117 (c) 0.0117 (d) 1.17
2. 2.1.5 × 0.3 — where does the decimal point go? (a) 4.5 (b) 0.45 (c) 0.0045 (d) 0.045
3. 3.0.92 × 4 — where does the decimal point go? (a) 0.368 (b) 0.0368 (c) 3.68 (d) 36.8
4. 4.0.28 × 7 — where does the decimal point go? (a) 1.96 (b) 19.6 (c) 0.0196 (d) 0.196
5. 5.0.18 × 3 — where does the decimal point go? (a) 0.54 (b) 0.054 (c) 0.0054 (d) 5.4
6. 6.0.25 × 21 — where does the decimal point go? (a) 0.0525 (b) 52.5 (c) 0.525 (d) 5.25
7. 7.5.1 × 0.8 — where does the decimal point go? (a) 40.8 (b) 4.08 (c) 0.408 (d) 0.0408
8. 8.6.7 × 9 — where does the decimal point go? (a) 0.603 (b) 60.3 (c) 603 (d) 6.03
9. 9.0.84 × 2 — where does the decimal point go? (a) 16.8 (b) 0.168 (c) 0.0168 (d) 1.68
10. 10.2.8 × 1.1 — where does the decimal point go? (a) 0.0308 (b) 30.8 (c) 0.308 (d) 3.08
11. 11.1.9 × 6 — where does the decimal point go? (a) 0.114 (b) 1.14 (c) 11.4 (d) 114
12. 12.0.38 × 0.4 — where does the decimal point go? (a) 1.52 (b) 0.0152 (c) 0.00152 (d) 0.152
13. 13.3.9 × 2 — where does the decimal point go? (a) 7.8 (b) 0.78 (c) 0.078 (d) 78
14. 14.0.28 × 0.2 — where does the decimal point go? (a) 0.056 (b) 0.0056 (c) 0.00056 (d) 0.56
15. 15.4.2 × 49 — where does the decimal point go? (a) 2058 (b) 205.8 (c) 2.058 (d) 20.58
16. 16.0.16 × 1.9 — where does the decimal point go? (a) 0.304 (b) 3.04 (c) 0.00304 (d) 0.0304
17. 17.0.56 × 7 — where does the decimal point go? (a) 0.0392 (b) 39.2 (c) 0.392 (d) 3.92
18. 18.4.5 × 45 — where does the decimal point go? (a) 20.25 (b) 2025 (c) 2.025 (d) 202.5
19. 19.1.9 × 7 — where does the decimal point go? (a) 1.33 (b) 0.133 (c) 133 (d) 13.3
20. 20.1.7 × 19 — where does the decimal point go? (a) 3.23 (b) 323 (c) 32.3 (d) 0.323
21. 21.6.5 × 7 — where does the decimal point go? (a) 4.55 (b) 0.455 (c) 455 (d) 45.5
22. 22.0.88 × 9 — where does the decimal point go? (a) 0.0792 (b) 79.2 (c) 7.92 (d) 0.792
23. 23.9.3 × 0.3 — where does the decimal point go? (a) 0.0279 (b) 27.9 (c) 2.79 (d) 0.279
24. 24.7.9 × 3.7 — where does the decimal point go? (a) 292.3 (b) 0.2923 (c) 29.23 (d) 2.923
25. 25.0.32 × 16 — where does the decimal point go? (a) 51.2 (b) 0.0512 (c) 0.512 (d) 5.12
26. 26.0.32 × 4 — where does the decimal point go? (a) 0.128 (b) 12.8 (c) 1.28 (d) 0.0128
27. 27.6.6 × 19 — where does the decimal point go? (a) 1.254 (b) 125.4 (c) 12.54 (d) 1254
28. 28.0.97 × 35 — where does the decimal point go? (a) 3.395 (b) 0.3395 (c) 339.5 (d) 33.95
29. 29.0.16 × 3 — where does the decimal point go? (a) 0.0048 (b) 0.048 (c) 0.48 (d) 4.8
30. 30.9.2 × 8 — where does the decimal point go? (a) 7.36 (b) 73.6 (c) 0.736 (d) 736
31. 31.8.3 × 0.5 — where does the decimal point go? (a) 4.15 (b) 0.415 (c) 41.5 (d) 0.0415
32. 32.7.3 × 5 — where does the decimal point go? (a) 36.5 (b) 0.365 (c) 3.65 (d) 365
33. 33.9.8 × 0.7 — where does the decimal point go? (a) 68.6 (b) 6.86 (c) 0.686 (d) 0.0686
34. 34.3.5 × 3.9 — where does the decimal point go? (a) 0.1365 (b) 136.5 (c) 13.65 (d) 1.365
35. 35.0.45 × 4.7 — where does the decimal point go? (a) 0.02115 (b) 0.2115 (c) 2.115 (d) 21.15
36. 36.0.24 × 11 — where does the decimal point go? (a) 2.64 (b) 0.0264 (c) 0.264 (d) 26.4
37. 37.2.4 × 4.9 — where does the decimal point go? (a) 0.1176 (b) 11.76 (c) 117.6 (d) 1.176
38. 38.0.88 × 0.3 — where does the decimal point go? (a) 0.264 (b) 0.00264 (c) 0.0264 (d) 2.64
39. 39.5.6 × 0.2 — where does the decimal point go? (a) 11.2 (b) 0.112 (c) 1.12 (d) 0.0112
40. 40.0.13 × 0.3 — where does the decimal point go? (a) 0.039 (b) 0.00039 (c) 0.0039 (d) 0.39

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