Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 843 · 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. 1.3.1 × 23 — where does the decimal point go? (a) 713 (b) 71.3 (c) 0.713 (d) 7.13
2. 2.5.3 × 3 — where does the decimal point go? (a) 0.159 (b) 159 (c) 15.9 (d) 1.59
3. 3.1.2 × 0.8 — where does the decimal point go? (a) 0.96 (b) 9.6 (c) 0.096 (d) 0.0096
4. 4.8.7 × 4.3 — where does the decimal point go? (a) 37.41 (b) 3.741 (c) 374.1 (d) 0.3741
5. 5.0.64 × 22 — where does the decimal point go? (a) 1.408 (b) 140.8 (c) 0.1408 (d) 14.08
6. 6.0.33 × 1.9 — where does the decimal point go? (a) 0.00627 (b) 0.627 (c) 0.0627 (d) 6.27
7. 7.0.93 × 1.3 — where does the decimal point go? (a) 1.209 (b) 12.09 (c) 0.01209 (d) 0.1209
8. 8.0.37 × 6 — where does the decimal point go? (a) 2.22 (b) 0.0222 (c) 0.222 (d) 22.2
9. 9.6.8 × 24 — where does the decimal point go? (a) 16.32 (b) 1632 (c) 163.2 (d) 1.632
10. 10.7.3 × 3 — where does the decimal point go? (a) 21.9 (b) 219 (c) 0.219 (d) 2.19
11. 11.0.96 × 8 — where does the decimal point go? (a) 7.68 (b) 0.768 (c) 0.0768 (d) 76.8
12. 12.5.3 × 44 — where does the decimal point go? (a) 2332 (b) 233.2 (c) 2.332 (d) 23.32
13. 13.4.8 × 0.3 — where does the decimal point go? (a) 0.0144 (b) 1.44 (c) 14.4 (d) 0.144
14. 14.4.1 × 36 — where does the decimal point go? (a) 1.476 (b) 1476 (c) 14.76 (d) 147.6
15. 15.0.16 × 0.6 — where does the decimal point go? (a) 0.096 (b) 0.0096 (c) 0.96 (d) 0.00096
16. 16.0.94 × 3.2 — where does the decimal point go? (a) 30.08 (b) 3.008 (c) 0.03008 (d) 0.3008
17. 17.8.6 × 2 — where does the decimal point go? (a) 0.172 (b) 17.2 (c) 172 (d) 1.72
18. 18.5.9 × 42 — where does the decimal point go? (a) 24.78 (b) 2.478 (c) 2478 (d) 247.8
19. 19.0.59 × 7 — where does the decimal point go? (a) 0.413 (b) 4.13 (c) 0.0413 (d) 41.3
20. 20.5.2 × 12 — where does the decimal point go? (a) 62.4 (b) 6.24 (c) 624 (d) 0.624
21. 21.1.6 × 0.6 — where does the decimal point go? (a) 9.6 (b) 0.96 (c) 0.0096 (d) 0.096
22. 22.0.19 × 45 — where does the decimal point go? (a) 85.5 (b) 0.0855 (c) 0.855 (d) 8.55
23. 23.2.9 × 1.5 — where does the decimal point go? (a) 4.35 (b) 43.5 (c) 0.435 (d) 0.0435
24. 24.4.7 × 0.6 — where does the decimal point go? (a) 0.282 (b) 2.82 (c) 0.0282 (d) 28.2
25. 25.0.18 × 0.3 — where does the decimal point go? (a) 0.054 (b) 0.00054 (c) 0.54 (d) 0.0054
26. 26.0.57 × 0.6 — where does the decimal point go? (a) 0.00342 (b) 3.42 (c) 0.342 (d) 0.0342
27. 27.3.3 × 24 — where does the decimal point go? (a) 79.2 (b) 792 (c) 0.792 (d) 7.92
28. 28.3.4 × 8 — where does the decimal point go? (a) 0.272 (b) 27.2 (c) 2.72 (d) 272
29. 29.1.9 × 0.5 — where does the decimal point go? (a) 0.0095 (b) 0.095 (c) 9.5 (d) 0.95
30. 30.0.67 × 43 — where does the decimal point go? (a) 2.881 (b) 288.1 (c) 0.2881 (d) 28.81
31. 31.0.52 × 4 — where does the decimal point go? (a) 2.08 (b) 20.8 (c) 0.0208 (d) 0.208
32. 32.0.42 × 2.8 — where does the decimal point go? (a) 0.1176 (b) 1.176 (c) 11.76 (d) 0.01176
33. 33.0.86 × 17 — where does the decimal point go? (a) 0.1462 (b) 146.2 (c) 14.62 (d) 1.462
34. 34.2.9 × 43 — where does the decimal point go? (a) 1247 (b) 12.47 (c) 124.7 (d) 1.247
35. 35.9.1 × 49 — where does the decimal point go? (a) 4.459 (b) 4459 (c) 44.59 (d) 445.9
36. 36.7.1 × 3.1 — where does the decimal point go? (a) 220.1 (b) 2.201 (c) 22.01 (d) 0.2201
37. 37.9.2 × 19 — where does the decimal point go? (a) 174.8 (b) 17.48 (c) 1748 (d) 1.748
38. 38.3.9 × 19 — where does the decimal point go? (a) 74.1 (b) 741 (c) 0.741 (d) 7.41
39. 39.0.57 × 33 — where does the decimal point go? (a) 18.81 (b) 1.881 (c) 0.1881 (d) 188.1
40. 40.0.25 × 33 — where does the decimal point go? (a) 8.25 (b) 82.5 (c) 0.0825 (d) 0.825

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