Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 325 · 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. 1.2.3 × 0.2 — where does the decimal point go? (a) 0.0046 (b) 0.46 (c) 4.6 (d) 0.046
2. 2.2.7 × 37 — where does the decimal point go? (a) 999 (b) 0.999 (c) 9.99 (d) 99.9
3. 3.0.19 × 3 — where does the decimal point go? (a) 0.057 (b) 5.7 (c) 0.0057 (d) 0.57
4. 4.0.87 × 7 — where does the decimal point go? (a) 60.9 (b) 0.609 (c) 0.0609 (d) 6.09
5. 5.2.6 × 9 — where does the decimal point go? (a) 0.234 (b) 234 (c) 23.4 (d) 2.34
6. 6.0.77 × 2 — where does the decimal point go? (a) 15.4 (b) 0.0154 (c) 0.154 (d) 1.54
7. 7.8.4 × 9 — where does the decimal point go? (a) 75.6 (b) 7.56 (c) 0.756 (d) 756
8. 8.1.3 × 8 — where does the decimal point go? (a) 1.04 (b) 0.104 (c) 104 (d) 10.4
9. 9.0.93 × 2 — where does the decimal point go? (a) 0.0186 (b) 18.6 (c) 0.186 (d) 1.86
10. 10.9.8 × 9 — where does the decimal point go? (a) 88.2 (b) 0.882 (c) 8.82 (d) 882
11. 11.4.6 × 3 — where does the decimal point go? (a) 0.138 (b) 1.38 (c) 13.8 (d) 138
12. 12.0.26 × 4.1 — where does the decimal point go? (a) 10.66 (b) 0.1066 (c) 1.066 (d) 0.01066
13. 13.0.93 × 0.8 — where does the decimal point go? (a) 0.0744 (b) 7.44 (c) 0.00744 (d) 0.744
14. 14.7.4 × 0.6 — where does the decimal point go? (a) 44.4 (b) 4.44 (c) 0.0444 (d) 0.444
15. 15.0.48 × 39 — where does the decimal point go? (a) 0.1872 (b) 18.72 (c) 1.872 (d) 187.2
16. 16.4.7 × 4.2 — where does the decimal point go? (a) 0.1974 (b) 1.974 (c) 197.4 (d) 19.74
17. 17.1.7 × 36 — where does the decimal point go? (a) 61.2 (b) 0.612 (c) 612 (d) 6.12
18. 18.0.23 × 16 — where does the decimal point go? (a) 0.0368 (b) 36.8 (c) 0.368 (d) 3.68
19. 19.0.79 × 0.6 — where does the decimal point go? (a) 0.00474 (b) 0.474 (c) 4.74 (d) 0.0474
20. 20.0.25 × 3.5 — where does the decimal point go? (a) 0.875 (b) 0.00875 (c) 8.75 (d) 0.0875
21. 21.5.6 × 2.3 — where does the decimal point go? (a) 0.1288 (b) 128.8 (c) 1.288 (d) 12.88
22. 22.0.26 × 2 — where does the decimal point go? (a) 0.52 (b) 5.2 (c) 0.0052 (d) 0.052
23. 23.0.72 × 9 — where does the decimal point go? (a) 0.648 (b) 0.0648 (c) 6.48 (d) 64.8
24. 24.0.32 × 1.9 — where does the decimal point go? (a) 0.608 (b) 0.0608 (c) 0.00608 (d) 6.08
25. 25.2.4 × 48 — where does the decimal point go? (a) 11.52 (b) 1152 (c) 115.2 (d) 1.152
26. 26.3.6 × 4.2 — where does the decimal point go? (a) 0.1512 (b) 151.2 (c) 1.512 (d) 15.12
27. 27.9.4 × 11 — where does the decimal point go? (a) 1.034 (b) 10.34 (c) 103.4 (d) 1034
28. 28.6.3 × 0.2 — where does the decimal point go? (a) 0.0126 (b) 1.26 (c) 12.6 (d) 0.126
29. 29.0.91 × 0.8 — where does the decimal point go? (a) 0.728 (b) 0.0728 (c) 0.00728 (d) 7.28
30. 30.8.8 × 9 — where does the decimal point go? (a) 0.792 (b) 792 (c) 79.2 (d) 7.92
31. 31.2.5 × 0.5 — where does the decimal point go? (a) 0.125 (b) 1.25 (c) 0.0125 (d) 12.5
32. 32.1.7 × 0.7 — where does the decimal point go? (a) 1.19 (b) 11.9 (c) 0.119 (d) 0.0119
33. 33.0.81 × 16 — where does the decimal point go? (a) 12.96 (b) 1.296 (c) 0.1296 (d) 129.6
34. 34.2.1 × 37 — where does the decimal point go? (a) 77.7 (b) 777 (c) 0.777 (d) 7.77
35. 35.2.6 × 0.8 — where does the decimal point go? (a) 0.208 (b) 0.0208 (c) 20.8 (d) 2.08
36. 36.7.2 × 4 — where does the decimal point go? (a) 288 (b) 0.288 (c) 2.88 (d) 28.8
37. 37.0.21 × 24 — where does the decimal point go? (a) 0.504 (b) 5.04 (c) 50.4 (d) 0.0504
38. 38.0.18 × 1.1 — where does the decimal point go? (a) 0.0198 (b) 0.00198 (c) 0.198 (d) 1.98
39. 39.4.9 × 5 — where does the decimal point go? (a) 24.5 (b) 245 (c) 0.245 (d) 2.45
40. 40.1.6 × 6 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 96 (d) 9.6

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