Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 277 · 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. 1.5.1 × 6 — where does the decimal point go? (a) 306 (b) 3.06 (c) 30.6 (d) 0.306
2. 2.1.9 × 16 — where does the decimal point go? (a) 3.04 (b) 304 (c) 0.304 (d) 30.4
3. 3.5.6 × 4 — where does the decimal point go? (a) 2.24 (b) 0.224 (c) 22.4 (d) 224
4. 4.4.9 × 8 — where does the decimal point go? (a) 3.92 (b) 0.392 (c) 392 (d) 39.2
5. 5.3.6 × 3.7 — where does the decimal point go? (a) 133.2 (b) 13.32 (c) 1.332 (d) 0.1332
6. 6.0.81 × 4 — where does the decimal point go? (a) 3.24 (b) 32.4 (c) 0.0324 (d) 0.324
7. 7.5.3 × 29 — where does the decimal point go? (a) 153.7 (b) 15.37 (c) 1.537 (d) 1537
8. 8.0.29 × 13 — where does the decimal point go? (a) 3.77 (b) 0.0377 (c) 37.7 (d) 0.377
9. 9.3.7 × 1.1 — where does the decimal point go? (a) 0.0407 (b) 0.407 (c) 40.7 (d) 4.07
10. 10.9.5 × 47 — where does the decimal point go? (a) 4465 (b) 44.65 (c) 446.5 (d) 4.465
11. 11.0.67 × 2 — where does the decimal point go? (a) 1.34 (b) 13.4 (c) 0.134 (d) 0.0134
12. 12.0.67 × 0.2 — where does the decimal point go? (a) 1.34 (b) 0.134 (c) 0.00134 (d) 0.0134
13. 13.4.6 × 0.3 — where does the decimal point go? (a) 0.0138 (b) 0.138 (c) 13.8 (d) 1.38
14. 14.0.95 × 13 — where does the decimal point go? (a) 123.5 (b) 12.35 (c) 1.235 (d) 0.1235
15. 15.0.23 × 1.2 — where does the decimal point go? (a) 2.76 (b) 0.00276 (c) 0.276 (d) 0.0276
16. 16.1.6 × 3 — where does the decimal point go? (a) 0.48 (b) 0.048 (c) 4.8 (d) 48
17. 17.8.2 × 41 — where does the decimal point go? (a) 3362 (b) 3.362 (c) 336.2 (d) 33.62
18. 18.0.29 × 1.6 — where does the decimal point go? (a) 0.464 (b) 0.0464 (c) 0.00464 (d) 4.64
19. 19.0.86 × 9 — where does the decimal point go? (a) 0.774 (b) 7.74 (c) 77.4 (d) 0.0774
20. 20.0.22 × 18 — where does the decimal point go? (a) 0.0396 (b) 0.396 (c) 3.96 (d) 39.6
21. 21.2.1 × 48 — where does the decimal point go? (a) 10.08 (b) 100.8 (c) 1.008 (d) 1008
22. 22.0.41 × 0.6 — where does the decimal point go? (a) 0.0246 (b) 0.246 (c) 2.46 (d) 0.00246
23. 23.0.77 × 0.6 — where does the decimal point go? (a) 0.00462 (b) 0.0462 (c) 4.62 (d) 0.462
24. 24.0.79 × 32 — where does the decimal point go? (a) 2.528 (b) 0.2528 (c) 25.28 (d) 252.8
25. 25.8.6 × 3.6 — where does the decimal point go? (a) 30.96 (b) 3.096 (c) 0.3096 (d) 309.6
26. 26.0.16 × 1.2 — where does the decimal point go? (a) 0.192 (b) 0.0192 (c) 0.00192 (d) 1.92
27. 27.7.9 × 1.3 — where does the decimal point go? (a) 10.27 (b) 102.7 (c) 1.027 (d) 0.1027
28. 28.0.43 × 6 — where does the decimal point go? (a) 0.258 (b) 25.8 (c) 0.0258 (d) 2.58
29. 29.0.78 × 6 — where does the decimal point go? (a) 0.0468 (b) 4.68 (c) 46.8 (d) 0.468
30. 30.0.32 × 0.3 — where does the decimal point go? (a) 0.00096 (b) 0.096 (c) 0.96 (d) 0.0096
31. 31.1.8 × 49 — where does the decimal point go? (a) 8.82 (b) 0.882 (c) 88.2 (d) 882
32. 32.9.2 × 8 — where does the decimal point go? (a) 7.36 (b) 736 (c) 73.6 (d) 0.736
33. 33.9.9 × 1.1 — where does the decimal point go? (a) 10.89 (b) 0.1089 (c) 1.089 (d) 108.9
34. 34.6.4 × 4 — where does the decimal point go? (a) 0.256 (b) 256 (c) 25.6 (d) 2.56
35. 35.6.2 × 0.7 — where does the decimal point go? (a) 43.4 (b) 0.434 (c) 4.34 (d) 0.0434
36. 36.3.3 × 14 — where does the decimal point go? (a) 0.462 (b) 462 (c) 4.62 (d) 46.2
37. 37.5.3 × 0.8 — where does the decimal point go? (a) 42.4 (b) 4.24 (c) 0.424 (d) 0.0424
38. 38.2.1 × 0.6 — where does the decimal point go? (a) 1.26 (b) 0.126 (c) 12.6 (d) 0.0126
39. 39.5.3 × 2 — where does the decimal point go? (a) 106 (b) 0.106 (c) 10.6 (d) 1.06
40. 40.6.9 × 3.7 — where does the decimal point go? (a) 255.3 (b) 2.553 (c) 0.2553 (d) 25.53

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