Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 828 · 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. 1.3.3 × 0.8 — where does the decimal point go? (a) 0.264 (b) 0.0264 (c) 2.64 (d) 26.4
2. 2.0.96 × 3 — where does the decimal point go? (a) 0.0288 (b) 0.288 (c) 28.8 (d) 2.88
3. 3.0.36 × 8 — where does the decimal point go? (a) 0.288 (b) 0.0288 (c) 28.8 (d) 2.88
4. 4.0.52 × 0.9 — where does the decimal point go? (a) 0.468 (b) 4.68 (c) 0.0468 (d) 0.00468
5. 5.0.13 × 9 — where does the decimal point go? (a) 11.7 (b) 0.117 (c) 0.0117 (d) 1.17
6. 6.4.2 × 3.2 — where does the decimal point go? (a) 13.44 (b) 134.4 (c) 0.1344 (d) 1.344
7. 7.8.9 × 3.8 — where does the decimal point go? (a) 33.82 (b) 3.382 (c) 0.3382 (d) 338.2
8. 8.6.4 × 3.1 — where does the decimal point go? (a) 1.984 (b) 0.1984 (c) 198.4 (d) 19.84
9. 9.8.5 × 0.7 — where does the decimal point go? (a) 59.5 (b) 0.595 (c) 5.95 (d) 0.0595
10. 10.6.1 × 3.9 — where does the decimal point go? (a) 23.79 (b) 237.9 (c) 0.2379 (d) 2.379
11. 11.0.99 × 2.2 — where does the decimal point go? (a) 0.2178 (b) 2.178 (c) 21.78 (d) 0.02178
12. 12.6.2 × 4.6 — where does the decimal point go? (a) 0.2852 (b) 285.2 (c) 28.52 (d) 2.852
13. 13.0.34 × 0.2 — where does the decimal point go? (a) 0.0068 (b) 0.00068 (c) 0.068 (d) 0.68
14. 14.8.6 × 0.3 — where does the decimal point go? (a) 0.0258 (b) 0.258 (c) 2.58 (d) 25.8
15. 15.6.4 × 0.3 — where does the decimal point go? (a) 19.2 (b) 0.192 (c) 0.0192 (d) 1.92
16. 16.0.72 × 9 — where does the decimal point go? (a) 6.48 (b) 0.648 (c) 64.8 (d) 0.0648
17. 17.4.3 × 4 — where does the decimal point go? (a) 17.2 (b) 1.72 (c) 172 (d) 0.172
18. 18.0.18 × 8 — where does the decimal point go? (a) 1.44 (b) 0.0144 (c) 14.4 (d) 0.144
19. 19.8.7 × 17 — where does the decimal point go? (a) 147.9 (b) 1.479 (c) 1479 (d) 14.79
20. 20.3.5 × 0.7 — where does the decimal point go? (a) 0.0245 (b) 0.245 (c) 2.45 (d) 24.5
21. 21.9.4 × 3 — where does the decimal point go? (a) 2.82 (b) 282 (c) 28.2 (d) 0.282
22. 22.2.7 × 1.5 — where does the decimal point go? (a) 40.5 (b) 4.05 (c) 0.405 (d) 0.0405
23. 23.0.93 × 2 — where does the decimal point go? (a) 18.6 (b) 0.0186 (c) 1.86 (d) 0.186
24. 24.6.4 × 3.4 — where does the decimal point go? (a) 0.2176 (b) 21.76 (c) 2.176 (d) 217.6
25. 25.5.9 × 6 — where does the decimal point go? (a) 0.354 (b) 3.54 (c) 35.4 (d) 354
26. 26.8.7 × 12 — where does the decimal point go? (a) 1.044 (b) 104.4 (c) 1044 (d) 10.44
27. 27.3.6 × 0.7 — where does the decimal point go? (a) 25.2 (b) 0.0252 (c) 2.52 (d) 0.252
28. 28.0.82 × 37 — where does the decimal point go? (a) 303.4 (b) 3.034 (c) 0.3034 (d) 30.34
29. 29.9.6 × 4.1 — where does the decimal point go? (a) 0.3936 (b) 39.36 (c) 3.936 (d) 393.6
30. 30.6.2 × 2 — where does the decimal point go? (a) 124 (b) 0.124 (c) 12.4 (d) 1.24
31. 31.2.7 × 0.4 — where does the decimal point go? (a) 10.8 (b) 0.0108 (c) 1.08 (d) 0.108
32. 32.0.48 × 0.3 — where does the decimal point go? (a) 0.00144 (b) 1.44 (c) 0.144 (d) 0.0144
33. 33.1.3 × 16 — where does the decimal point go? (a) 20.8 (b) 208 (c) 2.08 (d) 0.208
34. 34.0.48 × 3 — where does the decimal point go? (a) 0.144 (b) 0.0144 (c) 1.44 (d) 14.4
35. 35.7.7 × 0.5 — where does the decimal point go? (a) 3.85 (b) 0.385 (c) 0.0385 (d) 38.5
36. 36.0.78 × 0.2 — where does the decimal point go? (a) 1.56 (b) 0.156 (c) 0.00156 (d) 0.0156
37. 37.0.31 × 3.9 — where does the decimal point go? (a) 12.09 (b) 0.01209 (c) 0.1209 (d) 1.209
38. 38.4.7 × 18 — where does the decimal point go? (a) 8.46 (b) 846 (c) 0.846 (d) 84.6
39. 39.0.12 × 0.2 — where does the decimal point go? (a) 0.00024 (b) 0.0024 (c) 0.024 (d) 0.24
40. 40.0.28 × 8 — where does the decimal point go? (a) 2.24 (b) 0.0224 (c) 22.4 (d) 0.224

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