Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 664 · 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. 1.9.2 × 4 — where does the decimal point go? (a) 0.368 (b) 3.68 (c) 368 (d) 36.8
2. 2.0.49 × 13 — where does the decimal point go? (a) 0.0637 (b) 63.7 (c) 0.637 (d) 6.37
3. 3.0.47 × 0.2 — where does the decimal point go? (a) 0.094 (b) 0.00094 (c) 0.0094 (d) 0.94
4. 4.7.3 × 19 — where does the decimal point go? (a) 13.87 (b) 138.7 (c) 1.387 (d) 1387
5. 5.0.47 × 0.6 — where does the decimal point go? (a) 0.0282 (b) 2.82 (c) 0.00282 (d) 0.282
6. 6.0.31 × 6 — where does the decimal point go? (a) 1.86 (b) 0.186 (c) 0.0186 (d) 18.6
7. 7.6.5 × 0.3 — where does the decimal point go? (a) 0.195 (b) 1.95 (c) 0.0195 (d) 19.5
8. 8.4.3 × 2.6 — where does the decimal point go? (a) 0.1118 (b) 11.18 (c) 1.118 (d) 111.8
9. 9.0.98 × 0.6 — where does the decimal point go? (a) 0.588 (b) 0.0588 (c) 0.00588 (d) 5.88
10. 10.6.4 × 1.1 — where does the decimal point go? (a) 7.04 (b) 70.4 (c) 0.0704 (d) 0.704
11. 11.0.23 × 9 — where does the decimal point go? (a) 2.07 (b) 20.7 (c) 0.0207 (d) 0.207
12. 12.4.5 × 31 — where does the decimal point go? (a) 1395 (b) 139.5 (c) 1.395 (d) 13.95
13. 13.2.9 × 23 — where does the decimal point go? (a) 667 (b) 0.667 (c) 6.67 (d) 66.7
14. 14.5.1 × 0.9 — where does the decimal point go? (a) 4.59 (b) 0.0459 (c) 45.9 (d) 0.459
15. 15.0.61 × 6 — where does the decimal point go? (a) 3.66 (b) 36.6 (c) 0.0366 (d) 0.366
16. 16.0.43 × 33 — where does the decimal point go? (a) 141.9 (b) 0.1419 (c) 1.419 (d) 14.19
17. 17.0.84 × 0.3 — where does the decimal point go? (a) 2.52 (b) 0.252 (c) 0.0252 (d) 0.00252
18. 18.3.3 × 7 — where does the decimal point go? (a) 23.1 (b) 2.31 (c) 0.231 (d) 231
19. 19.0.32 × 0.8 — where does the decimal point go? (a) 0.256 (b) 2.56 (c) 0.00256 (d) 0.0256
20. 20.9.3 × 1.9 — where does the decimal point go? (a) 0.1767 (b) 17.67 (c) 1.767 (d) 176.7
21. 21.0.71 × 9 — where does the decimal point go? (a) 6.39 (b) 63.9 (c) 0.639 (d) 0.0639
22. 22.0.33 × 6 — where does the decimal point go? (a) 0.198 (b) 0.0198 (c) 1.98 (d) 19.8
23. 23.0.68 × 0.7 — where does the decimal point go? (a) 0.476 (b) 0.00476 (c) 4.76 (d) 0.0476
24. 24.1.7 × 0.8 — where does the decimal point go? (a) 1.36 (b) 13.6 (c) 0.136 (d) 0.0136
25. 25.0.72 × 16 — where does the decimal point go? (a) 0.1152 (b) 11.52 (c) 1.152 (d) 115.2
26. 26.6.8 × 48 — where does the decimal point go? (a) 32.64 (b) 326.4 (c) 3.264 (d) 3264
27. 27.0.29 × 2.3 — where does the decimal point go? (a) 0.00667 (b) 6.67 (c) 0.0667 (d) 0.667
28. 28.0.49 × 1.7 — where does the decimal point go? (a) 8.33 (b) 0.00833 (c) 0.833 (d) 0.0833
29. 29.0.39 × 4 — where does the decimal point go? (a) 15.6 (b) 1.56 (c) 0.156 (d) 0.0156
30. 30.3.1 × 47 — where does the decimal point go? (a) 1.457 (b) 1457 (c) 145.7 (d) 14.57
31. 31.0.91 × 9 — where does the decimal point go? (a) 0.0819 (b) 81.9 (c) 0.819 (d) 8.19
32. 32.2.1 × 1.7 — where does the decimal point go? (a) 3.57 (b) 35.7 (c) 0.0357 (d) 0.357
33. 33.0.99 × 0.4 — where does the decimal point go? (a) 0.396 (b) 3.96 (c) 0.00396 (d) 0.0396
34. 34.0.73 × 8 — where does the decimal point go? (a) 0.0584 (b) 5.84 (c) 0.584 (d) 58.4
35. 35.3.1 × 1.9 — where does the decimal point go? (a) 58.9 (b) 0.589 (c) 5.89 (d) 0.0589
36. 36.3.1 × 0.4 — where does the decimal point go? (a) 12.4 (b) 0.124 (c) 0.0124 (d) 1.24
37. 37.6.1 × 4.5 — where does the decimal point go? (a) 0.2745 (b) 2.745 (c) 274.5 (d) 27.45
38. 38.1.7 × 0.3 — where does the decimal point go? (a) 0.51 (b) 5.1 (c) 0.0051 (d) 0.051
39. 39.6.2 × 4 — where does the decimal point go? (a) 24.8 (b) 2.48 (c) 248 (d) 0.248
40. 40.5.4 × 4 — where does the decimal point go? (a) 2.16 (b) 0.216 (c) 216 (d) 21.6

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