Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 645 · 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. 1.2.2 × 6 — where does the decimal point go? (a) 13.2 (b) 1.32 (c) 0.132 (d) 132
2. 2.0.23 × 48 — where does the decimal point go? (a) 110.4 (b) 0.1104 (c) 11.04 (d) 1.104
3. 3.0.98 × 6 — where does the decimal point go? (a) 5.88 (b) 0.588 (c) 0.0588 (d) 58.8
4. 4.0.17 × 2 — where does the decimal point go? (a) 0.34 (b) 0.0034 (c) 0.034 (d) 3.4
5. 5.0.55 × 5 — where does the decimal point go? (a) 0.0275 (b) 2.75 (c) 0.275 (d) 27.5
6. 6.0.35 × 43 — where does the decimal point go? (a) 15.05 (b) 0.1505 (c) 150.5 (d) 1.505
7. 7.0.38 × 0.7 — where does the decimal point go? (a) 2.66 (b) 0.00266 (c) 0.0266 (d) 0.266
8. 8.0.42 × 2.6 — where does the decimal point go? (a) 10.92 (b) 0.1092 (c) 1.092 (d) 0.01092
9. 9.0.41 × 0.2 — where does the decimal point go? (a) 0.082 (b) 0.82 (c) 0.00082 (d) 0.0082
10. 10.0.43 × 2.8 — where does the decimal point go? (a) 0.01204 (b) 0.1204 (c) 12.04 (d) 1.204
11. 11.0.46 × 0.3 — where does the decimal point go? (a) 1.38 (b) 0.138 (c) 0.0138 (d) 0.00138
12. 12.0.41 × 1.2 — where does the decimal point go? (a) 0.00492 (b) 4.92 (c) 0.492 (d) 0.0492
13. 13.6.9 × 4 — where does the decimal point go? (a) 27.6 (b) 2.76 (c) 0.276 (d) 276
14. 14.8.9 × 3.4 — where does the decimal point go? (a) 3.026 (b) 0.3026 (c) 302.6 (d) 30.26
15. 15.0.65 × 0.3 — where does the decimal point go? (a) 0.0195 (b) 0.195 (c) 0.00195 (d) 1.95
16. 16.0.98 × 0.3 — where does the decimal point go? (a) 0.294 (b) 0.00294 (c) 2.94 (d) 0.0294
17. 17.5.3 × 2.7 — where does the decimal point go? (a) 0.1431 (b) 14.31 (c) 1.431 (d) 143.1
18. 18.0.59 × 3 — where does the decimal point go? (a) 0.177 (b) 17.7 (c) 0.0177 (d) 1.77
19. 19.1.3 × 0.8 — where does the decimal point go? (a) 1.04 (b) 0.104 (c) 10.4 (d) 0.0104
20. 20.0.46 × 32 — where does the decimal point go? (a) 1.472 (b) 14.72 (c) 0.1472 (d) 147.2
21. 21.0.81 × 0.3 — where does the decimal point go? (a) 2.43 (b) 0.00243 (c) 0.0243 (d) 0.243
22. 22.1.3 × 2 — where does the decimal point go? (a) 26 (b) 0.26 (c) 0.026 (d) 2.6
23. 23.0.13 × 0.6 — where does the decimal point go? (a) 0.78 (b) 0.078 (c) 0.0078 (d) 0.00078
24. 24.9.4 × 1.1 — where does the decimal point go? (a) 103.4 (b) 0.1034 (c) 10.34 (d) 1.034
25. 25.1.3 × 3.2 — where does the decimal point go? (a) 0.416 (b) 4.16 (c) 0.0416 (d) 41.6
26. 26.4.2 × 11 — where does the decimal point go? (a) 0.462 (b) 4.62 (c) 46.2 (d) 462
27. 27.9.6 × 4 — where does the decimal point go? (a) 384 (b) 38.4 (c) 3.84 (d) 0.384
28. 28.1.9 × 4.8 — where does the decimal point go? (a) 0.912 (b) 91.2 (c) 0.0912 (d) 9.12
29. 29.2.9 × 28 — where does the decimal point go? (a) 81.2 (b) 812 (c) 8.12 (d) 0.812
30. 30.0.86 × 17 — where does the decimal point go? (a) 0.1462 (b) 146.2 (c) 1.462 (d) 14.62
31. 31.0.15 × 9 — where does the decimal point go? (a) 0.135 (b) 13.5 (c) 0.0135 (d) 1.35
32. 32.1.3 × 41 — where does the decimal point go? (a) 53.3 (b) 0.533 (c) 5.33 (d) 533
33. 33.7.8 × 8 — where does the decimal point go? (a) 0.624 (b) 6.24 (c) 624 (d) 62.4
34. 34.2.7 × 0.5 — where does the decimal point go? (a) 0.0135 (b) 0.135 (c) 1.35 (d) 13.5
35. 35.6.9 × 1.8 — where does the decimal point go? (a) 0.1242 (b) 124.2 (c) 12.42 (d) 1.242
36. 36.0.14 × 48 — where does the decimal point go? (a) 67.2 (b) 0.672 (c) 0.0672 (d) 6.72
37. 37.0.24 × 3.6 — where does the decimal point go? (a) 0.0864 (b) 8.64 (c) 0.00864 (d) 0.864
38. 38.0.32 × 33 — where does the decimal point go? (a) 0.1056 (b) 10.56 (c) 1.056 (d) 105.6
39. 39.1.8 × 1.3 — where does the decimal point go? (a) 0.234 (b) 23.4 (c) 2.34 (d) 0.0234
40. 40.0.53 × 41 — where does the decimal point go? (a) 217.3 (b) 2.173 (c) 0.2173 (d) 21.73

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