Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 868 · 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. 1.7.2 × 1.9 — where does the decimal point go? (a) 0.1368 (b) 136.8 (c) 1.368 (d) 13.68
2. 2.0.33 × 0.2 — where does the decimal point go? (a) 0.66 (b) 0.0066 (c) 0.066 (d) 0.00066
3. 3.2.3 × 4 — where does the decimal point go? (a) 9.2 (b) 0.92 (c) 0.092 (d) 92
4. 4.0.77 × 16 — where does the decimal point go? (a) 123.2 (b) 1.232 (c) 0.1232 (d) 12.32
5. 5.0.15 × 0.5 — where does the decimal point go? (a) 0.075 (b) 0.75 (c) 0.00075 (d) 0.0075
6. 6.0.61 × 46 — where does the decimal point go? (a) 0.2806 (b) 28.06 (c) 280.6 (d) 2.806
7. 7.0.99 × 0.2 — where does the decimal point go? (a) 0.198 (b) 1.98 (c) 0.0198 (d) 0.00198
8. 8.0.37 × 3 — where does the decimal point go? (a) 0.111 (b) 11.1 (c) 1.11 (d) 0.0111
9. 9.2.6 × 4 — where does the decimal point go? (a) 0.104 (b) 104 (c) 1.04 (d) 10.4
10. 10.0.79 × 0.3 — where does the decimal point go? (a) 2.37 (b) 0.0237 (c) 0.00237 (d) 0.237
11. 11.5.2 × 31 — where does the decimal point go? (a) 16.12 (b) 1612 (c) 1.612 (d) 161.2
12. 12.0.51 × 1.5 — where does the decimal point go? (a) 0.00765 (b) 0.765 (c) 0.0765 (d) 7.65
13. 13.2.3 × 0.4 — where does the decimal point go? (a) 0.92 (b) 0.0092 (c) 0.092 (d) 9.2
14. 14.8.4 × 8 — where does the decimal point go? (a) 0.672 (b) 672 (c) 67.2 (d) 6.72
15. 15.4.6 × 1.1 — where does the decimal point go? (a) 0.506 (b) 5.06 (c) 0.0506 (d) 50.6
16. 16.5.9 × 9 — where does the decimal point go? (a) 53.1 (b) 5.31 (c) 0.531 (d) 531
17. 17.0.91 × 15 — where does the decimal point go? (a) 0.1365 (b) 1.365 (c) 136.5 (d) 13.65
18. 18.0.74 × 26 — where does the decimal point go? (a) 19.24 (b) 1.924 (c) 192.4 (d) 0.1924
19. 19.1.2 × 4.8 — where does the decimal point go? (a) 5.76 (b) 0.576 (c) 0.0576 (d) 57.6
20. 20.0.74 × 3.1 — where does the decimal point go? (a) 2.294 (b) 22.94 (c) 0.02294 (d) 0.2294
21. 21.0.32 × 6 — where does the decimal point go? (a) 19.2 (b) 0.0192 (c) 1.92 (d) 0.192
22. 22.8.8 × 1.4 — where does the decimal point go? (a) 0.1232 (b) 12.32 (c) 123.2 (d) 1.232
23. 23.2.2 × 0.4 — where does the decimal point go? (a) 0.088 (b) 0.0088 (c) 0.88 (d) 8.8
24. 24.7.4 × 3.6 — where does the decimal point go? (a) 2.664 (b) 0.2664 (c) 266.4 (d) 26.64
25. 25.3.6 × 4.1 — where does the decimal point go? (a) 1.476 (b) 147.6 (c) 0.1476 (d) 14.76
26. 26.0.65 × 0.7 — where does the decimal point go? (a) 4.55 (b) 0.00455 (c) 0.0455 (d) 0.455
27. 27.4.1 × 0.2 — where does the decimal point go? (a) 0.082 (b) 0.82 (c) 0.0082 (d) 8.2
28. 28.0.16 × 26 — where does the decimal point go? (a) 41.6 (b) 0.416 (c) 0.0416 (d) 4.16
29. 29.2.9 × 0.8 — where does the decimal point go? (a) 23.2 (b) 0.232 (c) 0.0232 (d) 2.32
30. 30.0.53 × 3.8 — where does the decimal point go? (a) 0.02014 (b) 2.014 (c) 20.14 (d) 0.2014
31. 31.7.5 × 4.7 — where does the decimal point go? (a) 3.525 (b) 352.5 (c) 0.3525 (d) 35.25
32. 32.2.9 × 0.5 — where does the decimal point go? (a) 0.145 (b) 0.0145 (c) 1.45 (d) 14.5
33. 33.8.8 × 3 — where does the decimal point go? (a) 26.4 (b) 264 (c) 0.264 (d) 2.64
34. 34.8.4 × 0.2 — where does the decimal point go? (a) 0.168 (b) 16.8 (c) 1.68 (d) 0.0168
35. 35.5.5 × 0.5 — where does the decimal point go? (a) 2.75 (b) 27.5 (c) 0.275 (d) 0.0275
36. 36.0.63 × 3 — where does the decimal point go? (a) 0.189 (b) 18.9 (c) 1.89 (d) 0.0189
37. 37.7.4 × 0.2 — where does the decimal point go? (a) 0.0148 (b) 1.48 (c) 14.8 (d) 0.148
38. 38.0.21 × 5 — where does the decimal point go? (a) 0.105 (b) 1.05 (c) 0.0105 (d) 10.5
39. 39.9.2 × 0.7 — where does the decimal point go? (a) 0.644 (b) 6.44 (c) 0.0644 (d) 64.4
40. 40.1.3 × 0.6 — where does the decimal point go? (a) 7.8 (b) 0.078 (c) 0.78 (d) 0.0078

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