Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 139 · 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. 1.0.63 × 4.7 — where does the decimal point go? (a) 0.2961 (b) 0.02961 (c) 2.961 (d) 29.61
2. 2.0.58 × 4 — where does the decimal point go? (a) 23.2 (b) 0.0232 (c) 2.32 (d) 0.232
3. 3.5.3 × 49 — where does the decimal point go? (a) 2.597 (b) 259.7 (c) 2597 (d) 25.97
4. 4.0.74 × 0.9 — where does the decimal point go? (a) 6.66 (b) 0.666 (c) 0.0666 (d) 0.00666
5. 5.0.73 × 17 — where does the decimal point go? (a) 0.1241 (b) 12.41 (c) 124.1 (d) 1.241
6. 6.0.74 × 2.9 — where does the decimal point go? (a) 21.46 (b) 0.02146 (c) 2.146 (d) 0.2146
7. 7.0.73 × 0.2 — where does the decimal point go? (a) 0.146 (b) 0.00146 (c) 0.0146 (d) 1.46
8. 8.1.3 × 36 — where does the decimal point go? (a) 4.68 (b) 0.468 (c) 468 (d) 46.8
9. 9.4.8 × 6 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 28.8 (d) 288
10. 10.0.67 × 4 — where does the decimal point go? (a) 26.8 (b) 2.68 (c) 0.0268 (d) 0.268
11. 11.0.76 × 14 — where does the decimal point go? (a) 1.064 (b) 106.4 (c) 10.64 (d) 0.1064
12. 12.2.1 × 9 — where does the decimal point go? (a) 18.9 (b) 0.189 (c) 1.89 (d) 189
13. 13.4.8 × 0.7 — where does the decimal point go? (a) 0.0336 (b) 33.6 (c) 3.36 (d) 0.336
14. 14.0.89 × 6 — where does the decimal point go? (a) 0.534 (b) 0.0534 (c) 53.4 (d) 5.34
15. 15.2.6 × 11 — where does the decimal point go? (a) 28.6 (b) 2.86 (c) 0.286 (d) 286
16. 16.0.69 × 4.1 — where does the decimal point go? (a) 0.02829 (b) 0.2829 (c) 2.829 (d) 28.29
17. 17.9.9 × 0.2 — where does the decimal point go? (a) 19.8 (b) 0.198 (c) 1.98 (d) 0.0198
18. 18.3.9 × 0.2 — where does the decimal point go? (a) 0.0078 (b) 0.78 (c) 7.8 (d) 0.078
19. 19.0.99 × 0.7 — where does the decimal point go? (a) 0.00693 (b) 6.93 (c) 0.0693 (d) 0.693
20. 20.0.27 × 0.8 — where does the decimal point go? (a) 0.0216 (b) 2.16 (c) 0.00216 (d) 0.216
21. 21.7.8 × 1.3 — where does the decimal point go? (a) 101.4 (b) 10.14 (c) 0.1014 (d) 1.014
22. 22.0.56 × 46 — where does the decimal point go? (a) 25.76 (b) 0.2576 (c) 257.6 (d) 2.576
23. 23.0.19 × 28 — where does the decimal point go? (a) 53.2 (b) 0.532 (c) 0.0532 (d) 5.32
24. 24.0.68 × 0.7 — where does the decimal point go? (a) 0.476 (b) 0.00476 (c) 4.76 (d) 0.0476
25. 25.0.34 × 9 — where does the decimal point go? (a) 0.0306 (b) 0.306 (c) 3.06 (d) 30.6
26. 26.0.42 × 31 — where does the decimal point go? (a) 0.1302 (b) 13.02 (c) 1.302 (d) 130.2
27. 27.0.29 × 0.7 — where does the decimal point go? (a) 0.0203 (b) 2.03 (c) 0.00203 (d) 0.203
28. 28.8.3 × 9 — where does the decimal point go? (a) 0.747 (b) 74.7 (c) 7.47 (d) 747
29. 29.0.44 × 39 — where does the decimal point go? (a) 0.1716 (b) 171.6 (c) 17.16 (d) 1.716
30. 30.0.63 × 0.9 — where does the decimal point go? (a) 0.567 (b) 0.00567 (c) 5.67 (d) 0.0567
31. 31.0.24 × 22 — where does the decimal point go? (a) 5.28 (b) 0.528 (c) 52.8 (d) 0.0528
32. 32.0.13 × 0.8 — where does the decimal point go? (a) 0.00104 (b) 0.0104 (c) 1.04 (d) 0.104
33. 33.1.2 × 0.2 — where does the decimal point go? (a) 0.24 (b) 2.4 (c) 0.024 (d) 0.0024
34. 34.0.61 × 0.8 — where does the decimal point go? (a) 0.00488 (b) 4.88 (c) 0.0488 (d) 0.488
35. 35.0.63 × 1.3 — where does the decimal point go? (a) 0.0819 (b) 0.00819 (c) 0.819 (d) 8.19
36. 36.8.9 × 21 — where does the decimal point go? (a) 1869 (b) 18.69 (c) 1.869 (d) 186.9
37. 37.1.9 × 43 — where does the decimal point go? (a) 0.817 (b) 81.7 (c) 817 (d) 8.17
38. 38.5.4 × 0.3 — where does the decimal point go? (a) 0.0162 (b) 1.62 (c) 16.2 (d) 0.162
39. 39.5.8 × 11 — where does the decimal point go? (a) 63.8 (b) 6.38 (c) 0.638 (d) 638
40. 40.5.9 × 1.4 — where does the decimal point go? (a) 8.26 (b) 0.0826 (c) 82.6 (d) 0.826

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