Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 730 · 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. 1.3.2 × 0.2 — where does the decimal point go? (a) 0.64 (b) 6.4 (c) 0.064 (d) 0.0064
2. 2.9.6 × 28 — where does the decimal point go? (a) 2.688 (b) 26.88 (c) 268.8 (d) 2688
3. 3.0.77 × 3 — where does the decimal point go? (a) 0.231 (b) 2.31 (c) 23.1 (d) 0.0231
4. 4.0.38 × 4.7 — where does the decimal point go? (a) 0.1786 (b) 1.786 (c) 0.01786 (d) 17.86
5. 5.6.2 × 2.7 — where does the decimal point go? (a) 167.4 (b) 16.74 (c) 0.1674 (d) 1.674
6. 6.2.9 × 5 — where does the decimal point go? (a) 14.5 (b) 1.45 (c) 0.145 (d) 145
7. 7.8.1 × 1.8 — where does the decimal point go? (a) 0.1458 (b) 1.458 (c) 145.8 (d) 14.58
8. 8.0.23 × 5 — where does the decimal point go? (a) 0.0115 (b) 11.5 (c) 1.15 (d) 0.115
9. 9.1.9 × 16 — where does the decimal point go? (a) 30.4 (b) 3.04 (c) 304 (d) 0.304
10. 10.0.64 × 7 — where does the decimal point go? (a) 4.48 (b) 0.448 (c) 0.0448 (d) 44.8
11. 11.6.7 × 1.7 — where does the decimal point go? (a) 0.1139 (b) 1.139 (c) 113.9 (d) 11.39
12. 12.3.2 × 2.4 — where does the decimal point go? (a) 0.0768 (b) 76.8 (c) 0.768 (d) 7.68
13. 13.4.3 × 29 — where does the decimal point go? (a) 1.247 (b) 12.47 (c) 1247 (d) 124.7
14. 14.7.6 × 4.2 — where does the decimal point go? (a) 0.3192 (b) 319.2 (c) 3.192 (d) 31.92
15. 15.0.13 × 9 — where does the decimal point go? (a) 0.0117 (b) 11.7 (c) 1.17 (d) 0.117
16. 16.0.17 × 24 — where does the decimal point go? (a) 0.408 (b) 40.8 (c) 4.08 (d) 0.0408
17. 17.0.71 × 2 — where does the decimal point go? (a) 0.0142 (b) 1.42 (c) 14.2 (d) 0.142
18. 18.0.33 × 0.3 — where does the decimal point go? (a) 0.0099 (b) 0.00099 (c) 0.99 (d) 0.099
19. 19.6.8 × 0.2 — where does the decimal point go? (a) 0.136 (b) 0.0136 (c) 1.36 (d) 13.6
20. 20.0.53 × 1.7 — where does the decimal point go? (a) 0.00901 (b) 9.01 (c) 0.0901 (d) 0.901
21. 21.4.2 × 3.2 — where does the decimal point go? (a) 13.44 (b) 134.4 (c) 1.344 (d) 0.1344
22. 22.1.5 × 4.3 — where does the decimal point go? (a) 0.645 (b) 6.45 (c) 0.0645 (d) 64.5
23. 23.0.69 × 26 — where does the decimal point go? (a) 0.1794 (b) 17.94 (c) 1.794 (d) 179.4
24. 24.0.26 × 9 — where does the decimal point go? (a) 0.234 (b) 0.0234 (c) 2.34 (d) 23.4
25. 25.9.9 × 7 — where does the decimal point go? (a) 6.93 (b) 0.693 (c) 693 (d) 69.3
26. 26.0.43 × 28 — where does the decimal point go? (a) 0.1204 (b) 12.04 (c) 1.204 (d) 120.4
27. 27.0.57 × 41 — where does the decimal point go? (a) 23.37 (b) 2.337 (c) 233.7 (d) 0.2337
28. 28.0.32 × 9 — where does the decimal point go? (a) 28.8 (b) 0.0288 (c) 0.288 (d) 2.88
29. 29.5.6 × 3.9 — where does the decimal point go? (a) 218.4 (b) 0.2184 (c) 2.184 (d) 21.84
30. 30.0.13 × 45 — where does the decimal point go? (a) 0.0585 (b) 58.5 (c) 5.85 (d) 0.585
31. 31.7.6 × 8 — where does the decimal point go? (a) 60.8 (b) 6.08 (c) 0.608 (d) 608
32. 32.6.6 × 19 — where does the decimal point go? (a) 125.4 (b) 1.254 (c) 1254 (d) 12.54
33. 33.8.9 × 9 — where does the decimal point go? (a) 801 (b) 8.01 (c) 0.801 (d) 80.1
34. 34.0.65 × 29 — where does the decimal point go? (a) 188.5 (b) 0.1885 (c) 18.85 (d) 1.885
35. 35.1.3 × 0.3 — where does the decimal point go? (a) 3.9 (b) 0.039 (c) 0.0039 (d) 0.39
36. 36.0.39 × 33 — where does the decimal point go? (a) 128.7 (b) 0.1287 (c) 1.287 (d) 12.87
37. 37.3.6 × 8 — where does the decimal point go? (a) 288 (b) 28.8 (c) 0.288 (d) 2.88
38. 38.9.5 × 29 — where does the decimal point go? (a) 2.755 (b) 27.55 (c) 2755 (d) 275.5
39. 39.0.83 × 0.3 — where does the decimal point go? (a) 0.0249 (b) 0.249 (c) 0.00249 (d) 2.49
40. 40.0.83 × 2.2 — where does the decimal point go? (a) 18.26 (b) 0.1826 (c) 0.01826 (d) 1.826

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