Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 371 · 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 × 0.3 — where does the decimal point go? (a) 9.3 (b) 0.093 (c) 0.0093 (d) 0.93
2. 2.0.48 × 9 — where does the decimal point go? (a) 0.432 (b) 43.2 (c) 0.0432 (d) 4.32
3. 3.2.6 × 44 — where does the decimal point go? (a) 11.44 (b) 1.144 (c) 114.4 (d) 1144
4. 4.8.5 × 27 — where does the decimal point go? (a) 2295 (b) 2.295 (c) 22.95 (d) 229.5
5. 5.0.73 × 0.3 — where does the decimal point go? (a) 0.219 (b) 0.0219 (c) 2.19 (d) 0.00219
6. 6.1.8 × 4 — where does the decimal point go? (a) 0.072 (b) 72 (c) 0.72 (d) 7.2
7. 7.0.47 × 37 — where does the decimal point go? (a) 1.739 (b) 0.1739 (c) 17.39 (d) 173.9
8. 8.0.32 × 4 — where does the decimal point go? (a) 0.128 (b) 12.8 (c) 1.28 (d) 0.0128
9. 9.0.41 × 2 — where does the decimal point go? (a) 0.82 (b) 8.2 (c) 0.082 (d) 0.0082
10. 10.0.12 × 0.4 — where does the decimal point go? (a) 0.048 (b) 0.48 (c) 0.00048 (d) 0.0048
11. 11.0.81 × 9 — where does the decimal point go? (a) 0.729 (b) 7.29 (c) 72.9 (d) 0.0729
12. 12.5.4 × 0.2 — where does the decimal point go? (a) 0.108 (b) 1.08 (c) 10.8 (d) 0.0108
13. 13.2.9 × 2.6 — where does the decimal point go? (a) 0.754 (b) 75.4 (c) 0.0754 (d) 7.54
14. 14.2.1 × 3 — where does the decimal point go? (a) 0.63 (b) 0.063 (c) 63 (d) 6.3
15. 15.7.4 × 0.9 — where does the decimal point go? (a) 66.6 (b) 0.0666 (c) 6.66 (d) 0.666
16. 16.0.65 × 3.9 — where does the decimal point go? (a) 0.2535 (b) 0.02535 (c) 25.35 (d) 2.535
17. 17.0.42 × 0.3 — where does the decimal point go? (a) 0.126 (b) 0.00126 (c) 1.26 (d) 0.0126
18. 18.0.74 × 2.8 — where does the decimal point go? (a) 0.02072 (b) 2.072 (c) 20.72 (d) 0.2072
19. 19.5.1 × 23 — where does the decimal point go? (a) 117.3 (b) 11.73 (c) 1.173 (d) 1173
20. 20.9.3 × 0.2 — where does the decimal point go? (a) 0.186 (b) 18.6 (c) 0.0186 (d) 1.86
21. 21.3.3 × 6 — where does the decimal point go? (a) 19.8 (b) 198 (c) 0.198 (d) 1.98
22. 22.0.28 × 0.4 — where does the decimal point go? (a) 0.0112 (b) 1.12 (c) 0.00112 (d) 0.112
23. 23.0.41 × 0.4 — where does the decimal point go? (a) 0.00164 (b) 1.64 (c) 0.164 (d) 0.0164
24. 24.0.61 × 0.3 — where does the decimal point go? (a) 1.83 (b) 0.183 (c) 0.00183 (d) 0.0183
25. 25.8.5 × 2.7 — where does the decimal point go? (a) 2.295 (b) 0.2295 (c) 22.95 (d) 229.5
26. 26.0.34 × 0.8 — where does the decimal point go? (a) 2.72 (b) 0.00272 (c) 0.272 (d) 0.0272
27. 27.1.8 × 36 — where does the decimal point go? (a) 64.8 (b) 648 (c) 0.648 (d) 6.48
28. 28.0.52 × 3.9 — where does the decimal point go? (a) 20.28 (b) 2.028 (c) 0.2028 (d) 0.02028
29. 29.0.18 × 41 — where does the decimal point go? (a) 73.8 (b) 7.38 (c) 0.0738 (d) 0.738
30. 30.0.52 × 4 — where does the decimal point go? (a) 2.08 (b) 0.208 (c) 20.8 (d) 0.0208
31. 31.0.99 × 0.2 — where does the decimal point go? (a) 0.0198 (b) 0.00198 (c) 0.198 (d) 1.98
32. 32.0.72 × 0.4 — where does the decimal point go? (a) 0.00288 (b) 0.0288 (c) 2.88 (d) 0.288
33. 33.7.6 × 23 — where does the decimal point go? (a) 174.8 (b) 1.748 (c) 17.48 (d) 1748
34. 34.0.89 × 14 — where does the decimal point go? (a) 12.46 (b) 1.246 (c) 124.6 (d) 0.1246
35. 35.0.41 × 1.3 — where does the decimal point go? (a) 0.0533 (b) 5.33 (c) 0.00533 (d) 0.533
36. 36.9.5 × 27 — where does the decimal point go? (a) 2.565 (b) 2565 (c) 25.65 (d) 256.5
37. 37.1.8 × 0.8 — where does the decimal point go? (a) 1.44 (b) 0.144 (c) 14.4 (d) 0.0144
38. 38.3.3 × 1.7 — where does the decimal point go? (a) 5.61 (b) 0.561 (c) 0.0561 (d) 56.1
39. 39.8.4 × 23 — where does the decimal point go? (a) 19.32 (b) 1932 (c) 1.932 (d) 193.2
40. 40.9.1 × 2.1 — where does the decimal point go? (a) 191.1 (b) 0.1911 (c) 1.911 (d) 19.11

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