Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 456 · 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. 1.5.6 × 2.2 — where does the decimal point go? (a) 0.1232 (b) 1.232 (c) 123.2 (d) 12.32
2. 2.0.73 × 33 — where does the decimal point go? (a) 2.409 (b) 240.9 (c) 24.09 (d) 0.2409
3. 3.9.2 × 1.8 — where does the decimal point go? (a) 0.1656 (b) 1.656 (c) 165.6 (d) 16.56
4. 4.0.75 × 0.5 — where does the decimal point go? (a) 3.75 (b) 0.0375 (c) 0.375 (d) 0.00375
5. 5.3.8 × 0.2 — where does the decimal point go? (a) 0.0076 (b) 7.6 (c) 0.076 (d) 0.76
6. 6.0.37 × 2.5 — where does the decimal point go? (a) 0.0925 (b) 0.925 (c) 0.00925 (d) 9.25
7. 7.0.21 × 36 — where does the decimal point go? (a) 75.6 (b) 0.0756 (c) 0.756 (d) 7.56
8. 8.0.77 × 2.9 — where does the decimal point go? (a) 22.33 (b) 0.2233 (c) 2.233 (d) 0.02233
9. 9.4.6 × 0.9 — where does the decimal point go? (a) 41.4 (b) 0.414 (c) 4.14 (d) 0.0414
10. 10.0.55 × 43 — where does the decimal point go? (a) 23.65 (b) 0.2365 (c) 236.5 (d) 2.365
11. 11.0.78 × 0.2 — where does the decimal point go? (a) 0.156 (b) 1.56 (c) 0.0156 (d) 0.00156
12. 12.0.87 × 6 — where does the decimal point go? (a) 5.22 (b) 0.0522 (c) 0.522 (d) 52.2
13. 13.5.3 × 5 — where does the decimal point go? (a) 26.5 (b) 0.265 (c) 265 (d) 2.65
14. 14.0.41 × 5 — where does the decimal point go? (a) 0.0205 (b) 0.205 (c) 2.05 (d) 20.5
15. 15.1.4 × 1.6 — where does the decimal point go? (a) 22.4 (b) 2.24 (c) 0.224 (d) 0.0224
16. 16.0.14 × 4.1 — where does the decimal point go? (a) 0.00574 (b) 5.74 (c) 0.574 (d) 0.0574
17. 17.5.3 × 2 — where does the decimal point go? (a) 0.106 (b) 106 (c) 10.6 (d) 1.06
18. 18.0.37 × 4.4 — where does the decimal point go? (a) 1.628 (b) 0.1628 (c) 0.01628 (d) 16.28
19. 19.0.93 × 0.5 — where does the decimal point go? (a) 0.465 (b) 0.00465 (c) 0.0465 (d) 4.65
20. 20.8.3 × 2 — where does the decimal point go? (a) 1.66 (b) 166 (c) 16.6 (d) 0.166
21. 21.0.59 × 5 — where does the decimal point go? (a) 2.95 (b) 0.0295 (c) 29.5 (d) 0.295
22. 22.6.5 × 0.5 — where does the decimal point go? (a) 3.25 (b) 0.0325 (c) 0.325 (d) 32.5
23. 23.0.27 × 46 — where does the decimal point go? (a) 124.2 (b) 12.42 (c) 1.242 (d) 0.1242
24. 24.2.8 × 7 — where does the decimal point go? (a) 1.96 (b) 0.196 (c) 19.6 (d) 196
25. 25.1.9 × 0.8 — where does the decimal point go? (a) 1.52 (b) 15.2 (c) 0.152 (d) 0.0152
26. 26.5.2 × 8 — where does the decimal point go? (a) 0.416 (b) 416 (c) 41.6 (d) 4.16
27. 27.5.4 × 8 — where does the decimal point go? (a) 0.432 (b) 43.2 (c) 4.32 (d) 432
28. 28.5.1 × 5 — where does the decimal point go? (a) 25.5 (b) 255 (c) 0.255 (d) 2.55
29. 29.1.2 × 0.4 — where does the decimal point go? (a) 4.8 (b) 0.0048 (c) 0.048 (d) 0.48
30. 30.9.7 × 9 — where does the decimal point go? (a) 87.3 (b) 0.873 (c) 873 (d) 8.73
31. 31.0.39 × 39 — where does the decimal point go? (a) 1.521 (b) 152.1 (c) 0.1521 (d) 15.21
32. 32.0.22 × 28 — where does the decimal point go? (a) 0.0616 (b) 0.616 (c) 61.6 (d) 6.16
33. 33.6.4 × 8 — where does the decimal point go? (a) 0.512 (b) 51.2 (c) 512 (d) 5.12
34. 34.8.8 × 3 — where does the decimal point go? (a) 26.4 (b) 0.264 (c) 264 (d) 2.64
35. 35.7.9 × 5 — where does the decimal point go? (a) 0.395 (b) 395 (c) 3.95 (d) 39.5
36. 36.7.5 × 25 — where does the decimal point go? (a) 1.875 (b) 187.5 (c) 1875 (d) 18.75
37. 37.1.4 × 1.1 — where does the decimal point go? (a) 1.54 (b) 0.0154 (c) 0.154 (d) 15.4
38. 38.0.98 × 0.8 — where does the decimal point go? (a) 0.784 (b) 7.84 (c) 0.00784 (d) 0.0784
39. 39.1.5 × 9 — where does the decimal point go? (a) 13.5 (b) 1.35 (c) 135 (d) 0.135
40. 40.9.3 × 29 — where does the decimal point go? (a) 2.697 (b) 269.7 (c) 26.97 (d) 2697

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