Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 219 · 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. 1.0.34 × 1.6 — where does the decimal point go? (a) 0.544 (b) 0.00544 (c) 0.0544 (d) 5.44
2. 2.0.28 × 3.3 — where does the decimal point go? (a) 9.24 (b) 0.00924 (c) 0.0924 (d) 0.924
3. 3.4.3 × 0.3 — where does the decimal point go? (a) 12.9 (b) 1.29 (c) 0.0129 (d) 0.129
4. 4.1.4 × 0.6 — where does the decimal point go? (a) 0.0084 (b) 0.84 (c) 8.4 (d) 0.084
5. 5.2.9 × 48 — where does the decimal point go? (a) 13.92 (b) 139.2 (c) 1.392 (d) 1392
6. 6.0.33 × 22 — where does the decimal point go? (a) 72.6 (b) 7.26 (c) 0.726 (d) 0.0726
7. 7.0.15 × 3.1 — where does the decimal point go? (a) 0.465 (b) 4.65 (c) 0.00465 (d) 0.0465
8. 8.8.9 × 9 — where does the decimal point go? (a) 801 (b) 0.801 (c) 8.01 (d) 80.1
9. 9.4.7 × 0.8 — where does the decimal point go? (a) 0.376 (b) 0.0376 (c) 37.6 (d) 3.76
10. 10.6.7 × 0.8 — where does the decimal point go? (a) 0.536 (b) 53.6 (c) 5.36 (d) 0.0536
11. 11.2.8 × 33 — where does the decimal point go? (a) 92.4 (b) 9.24 (c) 0.924 (d) 924
12. 12.0.65 × 0.3 — where does the decimal point go? (a) 0.00195 (b) 0.0195 (c) 0.195 (d) 1.95
13. 13.0.89 × 0.7 — where does the decimal point go? (a) 0.00623 (b) 0.0623 (c) 0.623 (d) 6.23
14. 14.6.4 × 38 — where does the decimal point go? (a) 2.432 (b) 2432 (c) 24.32 (d) 243.2
15. 15.7.7 × 15 — where does the decimal point go? (a) 1.155 (b) 11.55 (c) 1155 (d) 115.5
16. 16.0.17 × 1.9 — where does the decimal point go? (a) 0.323 (b) 0.00323 (c) 3.23 (d) 0.0323
17. 17.8.8 × 0.8 — where does the decimal point go? (a) 0.704 (b) 7.04 (c) 70.4 (d) 0.0704
18. 18.0.41 × 0.2 — where does the decimal point go? (a) 0.0082 (b) 0.082 (c) 0.82 (d) 0.00082
19. 19.0.37 × 3 — where does the decimal point go? (a) 1.11 (b) 0.111 (c) 0.0111 (d) 11.1
20. 20.5.1 × 8 — where does the decimal point go? (a) 40.8 (b) 408 (c) 0.408 (d) 4.08
21. 21.0.46 × 14 — where does the decimal point go? (a) 0.644 (b) 6.44 (c) 0.0644 (d) 64.4
22. 22.2.4 × 2.9 — where does the decimal point go? (a) 6.96 (b) 0.696 (c) 0.0696 (d) 69.6
23. 23.0.96 × 3.6 — where does the decimal point go? (a) 3.456 (b) 0.03456 (c) 34.56 (d) 0.3456
24. 24.8.9 × 7 — where does the decimal point go? (a) 623 (b) 6.23 (c) 62.3 (d) 0.623
25. 25.0.49 × 0.3 — where does the decimal point go? (a) 0.0147 (b) 0.00147 (c) 0.147 (d) 1.47
26. 26.8.4 × 4.4 — where does the decimal point go? (a) 36.96 (b) 3.696 (c) 369.6 (d) 0.3696
27. 27.2.7 × 9 — where does the decimal point go? (a) 24.3 (b) 2.43 (c) 0.243 (d) 243
28. 28.0.61 × 6 — where does the decimal point go? (a) 3.66 (b) 0.366 (c) 0.0366 (d) 36.6
29. 29.0.33 × 4.8 — where does the decimal point go? (a) 0.1584 (b) 15.84 (c) 1.584 (d) 0.01584
30. 30.5.7 × 5 — where does the decimal point go? (a) 28.5 (b) 0.285 (c) 285 (d) 2.85
31. 31.9.7 × 3 — where does the decimal point go? (a) 29.1 (b) 0.291 (c) 291 (d) 2.91
32. 32.0.71 × 8 — where does the decimal point go? (a) 5.68 (b) 0.0568 (c) 56.8 (d) 0.568
33. 33.0.97 × 1.9 — where does the decimal point go? (a) 0.1843 (b) 1.843 (c) 0.01843 (d) 18.43
34. 34.0.81 × 41 — where does the decimal point go? (a) 33.21 (b) 332.1 (c) 0.3321 (d) 3.321
35. 35.0.27 × 0.4 — where does the decimal point go? (a) 1.08 (b) 0.0108 (c) 0.108 (d) 0.00108
36. 36.5.6 × 0.2 — where does the decimal point go? (a) 11.2 (b) 0.0112 (c) 0.112 (d) 1.12
37. 37.4.2 × 1.6 — where does the decimal point go? (a) 67.2 (b) 0.0672 (c) 0.672 (d) 6.72
38. 38.0.21 × 4.3 — where does the decimal point go? (a) 0.903 (b) 9.03 (c) 0.00903 (d) 0.0903
39. 39.9.8 × 26 — where does the decimal point go? (a) 25.48 (b) 2548 (c) 254.8 (d) 2.548
40. 40.9.2 × 4 — where does the decimal point go? (a) 36.8 (b) 0.368 (c) 368 (d) 3.68

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