Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 865 · 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. 1.5.2 × 4.4 — where does the decimal point go? (a) 2.288 (b) 22.88 (c) 0.2288 (d) 228.8
2. 2.0.85 × 0.9 — where does the decimal point go? (a) 0.0765 (b) 0.765 (c) 0.00765 (d) 7.65
3. 3.0.54 × 3.9 — where does the decimal point go? (a) 21.06 (b) 2.106 (c) 0.2106 (d) 0.02106
4. 4.1.5 × 2.7 — where does the decimal point go? (a) 40.5 (b) 0.0405 (c) 4.05 (d) 0.405
5. 5.0.91 × 0.2 — where does the decimal point go? (a) 0.0182 (b) 0.00182 (c) 1.82 (d) 0.182
6. 6.6.3 × 46 — where does the decimal point go? (a) 2898 (b) 289.8 (c) 2.898 (d) 28.98
7. 7.8.6 × 11 — where does the decimal point go? (a) 9.46 (b) 94.6 (c) 0.946 (d) 946
8. 8.0.57 × 1.1 — where does the decimal point go? (a) 6.27 (b) 0.00627 (c) 0.0627 (d) 0.627
9. 9.2.2 × 3.3 — where does the decimal point go? (a) 72.6 (b) 0.0726 (c) 0.726 (d) 7.26
10. 10.0.99 × 2.2 — where does the decimal point go? (a) 2.178 (b) 0.02178 (c) 0.2178 (d) 21.78
11. 11.8.9 × 37 — where does the decimal point go? (a) 32.93 (b) 3293 (c) 329.3 (d) 3.293
12. 12.3.3 × 0.4 — where does the decimal point go? (a) 0.0132 (b) 13.2 (c) 0.132 (d) 1.32
13. 13.9.6 × 39 — where does the decimal point go? (a) 374.4 (b) 37.44 (c) 3744 (d) 3.744
14. 14.0.99 × 0.5 — where does the decimal point go? (a) 0.00495 (b) 0.495 (c) 0.0495 (d) 4.95
15. 15.0.49 × 0.6 — where does the decimal point go? (a) 0.0294 (b) 0.294 (c) 0.00294 (d) 2.94
16. 16.1.5 × 4.9 — where does the decimal point go? (a) 0.735 (b) 0.0735 (c) 73.5 (d) 7.35
17. 17.0.41 × 47 — where does the decimal point go? (a) 0.1927 (b) 19.27 (c) 192.7 (d) 1.927
18. 18.0.21 × 7 — where does the decimal point go? (a) 1.47 (b) 0.147 (c) 14.7 (d) 0.0147
19. 19.3.6 × 6 — where does the decimal point go? (a) 21.6 (b) 0.216 (c) 2.16 (d) 216
20. 20.9.6 × 2 — where does the decimal point go? (a) 1.92 (b) 0.192 (c) 19.2 (d) 192
21. 21.7.3 × 3.7 — where does the decimal point go? (a) 0.2701 (b) 270.1 (c) 27.01 (d) 2.701
22. 22.0.23 × 16 — where does the decimal point go? (a) 0.368 (b) 36.8 (c) 0.0368 (d) 3.68
23. 23.0.42 × 1.1 — where does the decimal point go? (a) 4.62 (b) 0.00462 (c) 0.0462 (d) 0.462
24. 24.4.6 × 0.9 — where does the decimal point go? (a) 4.14 (b) 0.0414 (c) 0.414 (d) 41.4
25. 25.7.3 × 4 — where does the decimal point go? (a) 0.292 (b) 292 (c) 29.2 (d) 2.92
26. 26.0.16 × 0.2 — where does the decimal point go? (a) 0.00032 (b) 0.0032 (c) 0.032 (d) 0.32
27. 27.0.72 × 37 — where does the decimal point go? (a) 266.4 (b) 2.664 (c) 26.64 (d) 0.2664
28. 28.7.7 × 29 — where does the decimal point go? (a) 2233 (b) 223.3 (c) 2.233 (d) 22.33
29. 29.6.3 × 16 — where does the decimal point go? (a) 10.08 (b) 1008 (c) 1.008 (d) 100.8
30. 30.0.19 × 0.3 — where does the decimal point go? (a) 0.57 (b) 0.00057 (c) 0.057 (d) 0.0057
31. 31.0.83 × 0.3 — where does the decimal point go? (a) 2.49 (b) 0.249 (c) 0.00249 (d) 0.0249
32. 32.0.71 × 3 — where does the decimal point go? (a) 0.213 (b) 21.3 (c) 0.0213 (d) 2.13
33. 33.0.94 × 4 — where does the decimal point go? (a) 37.6 (b) 3.76 (c) 0.0376 (d) 0.376
34. 34.0.89 × 31 — where does the decimal point go? (a) 0.2759 (b) 275.9 (c) 2.759 (d) 27.59
35. 35.6.7 × 3.3 — where does the decimal point go? (a) 221.1 (b) 22.11 (c) 0.2211 (d) 2.211
36. 36.4.2 × 9 — where does the decimal point go? (a) 37.8 (b) 378 (c) 3.78 (d) 0.378
37. 37.0.37 × 0.4 — where does the decimal point go? (a) 0.00148 (b) 1.48 (c) 0.0148 (d) 0.148
38. 38.5.6 × 9 — where does the decimal point go? (a) 504 (b) 50.4 (c) 5.04 (d) 0.504
39. 39.3.9 × 2.6 — where does the decimal point go? (a) 10.14 (b) 0.1014 (c) 1.014 (d) 101.4
40. 40.0.74 × 7 — where does the decimal point go? (a) 0.0518 (b) 0.518 (c) 51.8 (d) 5.18

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