Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 433 · 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. 1.0.28 × 12 — where does the decimal point go? (a) 0.0336 (b) 33.6 (c) 3.36 (d) 0.336
2. 2.4.7 × 0.6 — where does the decimal point go? (a) 2.82 (b) 0.0282 (c) 0.282 (d) 28.2
3. 3.5.6 × 27 — where does the decimal point go? (a) 1.512 (b) 151.2 (c) 1512 (d) 15.12
4. 4.0.36 × 41 — where does the decimal point go? (a) 1.476 (b) 147.6 (c) 14.76 (d) 0.1476
5. 5.0.96 × 27 — where does the decimal point go? (a) 0.2592 (b) 2.592 (c) 259.2 (d) 25.92
6. 6.4.4 × 2.3 — where does the decimal point go? (a) 0.1012 (b) 10.12 (c) 101.2 (d) 1.012
7. 7.4.6 × 4 — where does the decimal point go? (a) 18.4 (b) 1.84 (c) 0.184 (d) 184
8. 8.0.89 × 2 — where does the decimal point go? (a) 1.78 (b) 0.178 (c) 0.0178 (d) 17.8
9. 9.0.84 × 0.4 — where does the decimal point go? (a) 0.0336 (b) 3.36 (c) 0.336 (d) 0.00336
10. 10.6.7 × 9 — where does the decimal point go? (a) 603 (b) 0.603 (c) 6.03 (d) 60.3
11. 11.0.55 × 43 — where does the decimal point go? (a) 23.65 (b) 0.2365 (c) 2.365 (d) 236.5
12. 12.0.81 × 0.7 — where does the decimal point go? (a) 5.67 (b) 0.567 (c) 0.0567 (d) 0.00567
13. 13.0.26 × 11 — where does the decimal point go? (a) 28.6 (b) 0.0286 (c) 2.86 (d) 0.286
14. 14.0.28 × 1.2 — where does the decimal point go? (a) 0.0336 (b) 0.00336 (c) 3.36 (d) 0.336
15. 15.7.6 × 0.4 — where does the decimal point go? (a) 30.4 (b) 0.0304 (c) 0.304 (d) 3.04
16. 16.2.8 × 2 — where does the decimal point go? (a) 5.6 (b) 56 (c) 0.56 (d) 0.056
17. 17.2.9 × 6 — where does the decimal point go? (a) 0.174 (b) 1.74 (c) 17.4 (d) 174
18. 18.8.2 × 0.3 — where does the decimal point go? (a) 0.246 (b) 24.6 (c) 0.0246 (d) 2.46
19. 19.7.7 × 2 — where does the decimal point go? (a) 1.54 (b) 154 (c) 0.154 (d) 15.4
20. 20.0.63 × 0.5 — where does the decimal point go? (a) 0.315 (b) 0.0315 (c) 0.00315 (d) 3.15
21. 21.4.1 × 17 — where does the decimal point go? (a) 69.7 (b) 0.697 (c) 697 (d) 6.97
22. 22.6.2 × 2 — where does the decimal point go? (a) 0.124 (b) 124 (c) 1.24 (d) 12.4
23. 23.0.67 × 11 — where does the decimal point go? (a) 0.0737 (b) 73.7 (c) 7.37 (d) 0.737
24. 24.7.6 × 2.9 — where does the decimal point go? (a) 0.2204 (b) 22.04 (c) 220.4 (d) 2.204
25. 25.0.86 × 1.6 — where does the decimal point go? (a) 13.76 (b) 0.1376 (c) 0.01376 (d) 1.376
26. 26.3.2 × 0.2 — where does the decimal point go? (a) 0.064 (b) 0.64 (c) 6.4 (d) 0.0064
27. 27.0.36 × 2 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 0.072 (d) 7.2
28. 28.9.9 × 3 — where does the decimal point go? (a) 29.7 (b) 297 (c) 0.297 (d) 2.97
29. 29.4.7 × 0.3 — where does the decimal point go? (a) 0.0141 (b) 14.1 (c) 0.141 (d) 1.41
30. 30.5.9 × 3.8 — where does the decimal point go? (a) 0.2242 (b) 22.42 (c) 2.242 (d) 224.2
31. 31.7.9 × 24 — where does the decimal point go? (a) 18.96 (b) 189.6 (c) 1.896 (d) 1896
32. 32.0.29 × 0.8 — where does the decimal point go? (a) 0.00232 (b) 0.0232 (c) 0.232 (d) 2.32
33. 33.7.1 × 0.7 — where does the decimal point go? (a) 4.97 (b) 0.497 (c) 0.0497 (d) 49.7
34. 34.1.7 × 0.5 — where does the decimal point go? (a) 0.085 (b) 8.5 (c) 0.85 (d) 0.0085
35. 35.0.37 × 6 — where does the decimal point go? (a) 0.0222 (b) 2.22 (c) 0.222 (d) 22.2
36. 36.2.1 × 2.4 — where does the decimal point go? (a) 50.4 (b) 0.504 (c) 0.0504 (d) 5.04
37. 37.0.63 × 0.6 — where does the decimal point go? (a) 0.378 (b) 0.00378 (c) 3.78 (d) 0.0378
38. 38.1.5 × 2.3 — where does the decimal point go? (a) 0.345 (b) 34.5 (c) 3.45 (d) 0.0345
39. 39.0.79 × 0.5 — where does the decimal point go? (a) 0.0395 (b) 3.95 (c) 0.00395 (d) 0.395
40. 40.1.4 × 2 — where does the decimal point go? (a) 0.28 (b) 28 (c) 0.028 (d) 2.8

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