Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 483 · 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. 1.0.69 × 4 — where does the decimal point go? (a) 0.0276 (b) 0.276 (c) 27.6 (d) 2.76
2. 2.1.3 × 2.4 — where does the decimal point go? (a) 3.12 (b) 31.2 (c) 0.0312 (d) 0.312
3. 3.0.87 × 1.5 — where does the decimal point go? (a) 0.01305 (b) 1.305 (c) 0.1305 (d) 13.05
4. 4.0.48 × 6 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 0.0288 (d) 28.8
5. 5.1.7 × 5 — where does the decimal point go? (a) 8.5 (b) 0.085 (c) 85 (d) 0.85
6. 6.0.26 × 34 — where does the decimal point go? (a) 8.84 (b) 0.884 (c) 88.4 (d) 0.0884
7. 7.5.8 × 1.3 — where does the decimal point go? (a) 7.54 (b) 0.754 (c) 0.0754 (d) 75.4
8. 8.0.39 × 6 — where does the decimal point go? (a) 0.234 (b) 2.34 (c) 0.0234 (d) 23.4
9. 9.0.62 × 0.3 — where does the decimal point go? (a) 1.86 (b) 0.186 (c) 0.0186 (d) 0.00186
10. 10.7.9 × 38 — where does the decimal point go? (a) 30.02 (b) 3002 (c) 3.002 (d) 300.2
11. 11.0.62 × 47 — where does the decimal point go? (a) 0.2914 (b) 2.914 (c) 29.14 (d) 291.4
12. 12.1.9 × 3.9 — where does the decimal point go? (a) 7.41 (b) 0.0741 (c) 0.741 (d) 74.1
13. 13.0.31 × 0.6 — where does the decimal point go? (a) 0.00186 (b) 0.186 (c) 1.86 (d) 0.0186
14. 14.0.13 × 4.7 — where does the decimal point go? (a) 0.0611 (b) 0.611 (c) 6.11 (d) 0.00611
15. 15.1.3 × 4 — where does the decimal point go? (a) 0.052 (b) 0.52 (c) 52 (d) 5.2
16. 16.0.99 × 29 — where does the decimal point go? (a) 2.871 (b) 0.2871 (c) 287.1 (d) 28.71
17. 17.4.3 × 6 — where does the decimal point go? (a) 2.58 (b) 0.258 (c) 258 (d) 25.8
18. 18.3.8 × 0.6 — where does the decimal point go? (a) 2.28 (b) 0.0228 (c) 22.8 (d) 0.228
19. 19.7.7 × 2.3 — where does the decimal point go? (a) 1.771 (b) 0.1771 (c) 17.71 (d) 177.1
20. 20.7.3 × 27 — where does the decimal point go? (a) 197.1 (b) 19.71 (c) 1.971 (d) 1971
21. 21.0.33 × 3.6 — where does the decimal point go? (a) 1.188 (b) 11.88 (c) 0.01188 (d) 0.1188
22. 22.3.8 × 0.8 — where does the decimal point go? (a) 0.0304 (b) 0.304 (c) 3.04 (d) 30.4
23. 23.7.8 × 0.7 — where does the decimal point go? (a) 54.6 (b) 0.546 (c) 0.0546 (d) 5.46
24. 24.0.83 × 37 — where does the decimal point go? (a) 3.071 (b) 307.1 (c) 0.3071 (d) 30.71
25. 25.2.2 × 2.7 — where does the decimal point go? (a) 0.594 (b) 5.94 (c) 59.4 (d) 0.0594
26. 26.0.62 × 37 — where does the decimal point go? (a) 2.294 (b) 0.2294 (c) 229.4 (d) 22.94
27. 27.5.3 × 7 — where does the decimal point go? (a) 3.71 (b) 371 (c) 0.371 (d) 37.1
28. 28.0.79 × 49 — where does the decimal point go? (a) 0.3871 (b) 3.871 (c) 38.71 (d) 387.1
29. 29.0.84 × 0.7 — where does the decimal point go? (a) 0.588 (b) 0.0588 (c) 0.00588 (d) 5.88
30. 30.9.9 × 39 — where does the decimal point go? (a) 386.1 (b) 3.861 (c) 38.61 (d) 3861
31. 31.9.4 × 8 — where does the decimal point go? (a) 7.52 (b) 75.2 (c) 0.752 (d) 752
32. 32.9.4 × 0.9 — where does the decimal point go? (a) 8.46 (b) 84.6 (c) 0.0846 (d) 0.846
33. 33.1.6 × 1.4 — where does the decimal point go? (a) 22.4 (b) 0.0224 (c) 0.224 (d) 2.24
34. 34.7.1 × 0.5 — where does the decimal point go? (a) 0.0355 (b) 35.5 (c) 0.355 (d) 3.55
35. 35.6.2 × 0.9 — where does the decimal point go? (a) 5.58 (b) 55.8 (c) 0.0558 (d) 0.558
36. 36.1.2 × 2 — where does the decimal point go? (a) 0.24 (b) 2.4 (c) 0.024 (d) 24
37. 37.0.56 × 3.4 — where does the decimal point go? (a) 19.04 (b) 0.01904 (c) 0.1904 (d) 1.904
38. 38.7.7 × 18 — where does the decimal point go? (a) 13.86 (b) 1386 (c) 1.386 (d) 138.6
39. 39.0.17 × 2.8 — where does the decimal point go? (a) 0.00476 (b) 0.0476 (c) 4.76 (d) 0.476
40. 40.9.2 × 18 — where does the decimal point go? (a) 1.656 (b) 16.56 (c) 1656 (d) 165.6

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