Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 209 · 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. 1.1.4 × 3 — where does the decimal point go? (a) 4.2 (b) 42 (c) 0.042 (d) 0.42
2. 2.3.1 × 3.6 — where does the decimal point go? (a) 0.1116 (b) 1.116 (c) 111.6 (d) 11.16
3. 3.3.1 × 4.4 — where does the decimal point go? (a) 0.1364 (b) 1.364 (c) 13.64 (d) 136.4
4. 4.0.32 × 3 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 0.0096 (d) 9.6
5. 5.0.83 × 0.2 — where does the decimal point go? (a) 1.66 (b) 0.00166 (c) 0.166 (d) 0.0166
6. 6.0.86 × 9 — where does the decimal point go? (a) 0.774 (b) 0.0774 (c) 77.4 (d) 7.74
7. 7.0.56 × 48 — where does the decimal point go? (a) 26.88 (b) 268.8 (c) 2.688 (d) 0.2688
8. 8.0.93 × 7 — where does the decimal point go? (a) 0.651 (b) 65.1 (c) 6.51 (d) 0.0651
9. 9.5.9 × 15 — where does the decimal point go? (a) 0.885 (b) 885 (c) 8.85 (d) 88.5
10. 10.7.4 × 0.8 — where does the decimal point go? (a) 0.592 (b) 5.92 (c) 0.0592 (d) 59.2
11. 11.6.2 × 4.2 — where does the decimal point go? (a) 26.04 (b) 260.4 (c) 0.2604 (d) 2.604
12. 12.5.3 × 46 — where does the decimal point go? (a) 24.38 (b) 243.8 (c) 2438 (d) 2.438
13. 13.8.8 × 0.2 — where does the decimal point go? (a) 1.76 (b) 0.0176 (c) 0.176 (d) 17.6
14. 14.0.79 × 1.2 — where does the decimal point go? (a) 0.0948 (b) 9.48 (c) 0.00948 (d) 0.948
15. 15.0.19 × 23 — where does the decimal point go? (a) 4.37 (b) 0.0437 (c) 0.437 (d) 43.7
16. 16.6.5 × 13 — where does the decimal point go? (a) 845 (b) 0.845 (c) 8.45 (d) 84.5
17. 17.4.8 × 0.4 — where does the decimal point go? (a) 1.92 (b) 0.192 (c) 0.0192 (d) 19.2
18. 18.3.1 × 0.2 — where does the decimal point go? (a) 0.62 (b) 6.2 (c) 0.0062 (d) 0.062
19. 19.0.73 × 0.4 — where does the decimal point go? (a) 0.0292 (b) 0.292 (c) 2.92 (d) 0.00292
20. 20.1.4 × 29 — where does the decimal point go? (a) 40.6 (b) 4.06 (c) 406 (d) 0.406
21. 21.4.2 × 2 — where does the decimal point go? (a) 8.4 (b) 84 (c) 0.84 (d) 0.084
22. 22.0.49 × 0.4 — where does the decimal point go? (a) 0.00196 (b) 1.96 (c) 0.0196 (d) 0.196
23. 23.0.42 × 2 — where does the decimal point go? (a) 0.0084 (b) 8.4 (c) 0.84 (d) 0.084
24. 24.4.9 × 6 — where does the decimal point go? (a) 0.294 (b) 294 (c) 29.4 (d) 2.94
25. 25.4.4 × 4 — where does the decimal point go? (a) 17.6 (b) 176 (c) 1.76 (d) 0.176
26. 26.0.92 × 8 — where does the decimal point go? (a) 0.0736 (b) 7.36 (c) 73.6 (d) 0.736
27. 27.0.81 × 6 — where does the decimal point go? (a) 48.6 (b) 0.486 (c) 0.0486 (d) 4.86
28. 28.0.44 × 0.8 — where does the decimal point go? (a) 0.00352 (b) 3.52 (c) 0.0352 (d) 0.352
29. 29.0.89 × 9 — where does the decimal point go? (a) 0.801 (b) 80.1 (c) 0.0801 (d) 8.01
30. 30.8.8 × 49 — where does the decimal point go? (a) 431.2 (b) 43.12 (c) 4.312 (d) 4312
31. 31.0.62 × 0.3 — where does the decimal point go? (a) 1.86 (b) 0.00186 (c) 0.186 (d) 0.0186
32. 32.0.69 × 5 — where does the decimal point go? (a) 0.345 (b) 34.5 (c) 0.0345 (d) 3.45
33. 33.0.43 × 21 — where does the decimal point go? (a) 90.3 (b) 9.03 (c) 0.903 (d) 0.0903
34. 34.5.3 × 2.6 — where does the decimal point go? (a) 137.8 (b) 0.1378 (c) 13.78 (d) 1.378
35. 35.3.2 × 3 — where does the decimal point go? (a) 96 (b) 0.96 (c) 0.096 (d) 9.6
36. 36.0.84 × 4 — where does the decimal point go? (a) 0.336 (b) 3.36 (c) 33.6 (d) 0.0336
37. 37.1.7 × 14 — where does the decimal point go? (a) 0.238 (b) 23.8 (c) 238 (d) 2.38
38. 38.5.9 × 2 — where does the decimal point go? (a) 118 (b) 11.8 (c) 0.118 (d) 1.18
39. 39.2.3 × 11 — where does the decimal point go? (a) 253 (b) 2.53 (c) 0.253 (d) 25.3
40. 40.6.2 × 0.9 — where does the decimal point go? (a) 0.558 (b) 0.0558 (c) 55.8 (d) 5.58

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