Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 480 · 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. 1.4.1 × 4 — where does the decimal point go? (a) 0.164 (b) 16.4 (c) 164 (d) 1.64
2. 2.0.93 × 41 — where does the decimal point go? (a) 0.3813 (b) 3.813 (c) 38.13 (d) 381.3
3. 3.0.68 × 0.4 — where does the decimal point go? (a) 0.272 (b) 0.0272 (c) 0.00272 (d) 2.72
4. 4.0.99 × 0.5 — where does the decimal point go? (a) 4.95 (b) 0.495 (c) 0.0495 (d) 0.00495
5. 5.6.5 × 0.5 — where does the decimal point go? (a) 32.5 (b) 0.325 (c) 3.25 (d) 0.0325
6. 6.0.52 × 4.9 — where does the decimal point go? (a) 0.2548 (b) 25.48 (c) 2.548 (d) 0.02548
7. 7.4.5 × 3.9 — where does the decimal point go? (a) 0.1755 (b) 17.55 (c) 175.5 (d) 1.755
8. 8.4.4 × 6 — where does the decimal point go? (a) 2.64 (b) 26.4 (c) 264 (d) 0.264
9. 9.5.6 × 1.3 — where does the decimal point go? (a) 0.0728 (b) 0.728 (c) 72.8 (d) 7.28
10. 10.0.55 × 17 — where does the decimal point go? (a) 0.0935 (b) 9.35 (c) 0.935 (d) 93.5
11. 11.0.86 × 4 — where does the decimal point go? (a) 0.344 (b) 34.4 (c) 0.0344 (d) 3.44
12. 12.0.51 × 49 — where does the decimal point go? (a) 24.99 (b) 0.2499 (c) 2.499 (d) 249.9
13. 13.0.16 × 2.3 — where does the decimal point go? (a) 3.68 (b) 0.368 (c) 0.00368 (d) 0.0368
14. 14.8.4 × 19 — where does the decimal point go? (a) 15.96 (b) 159.6 (c) 1.596 (d) 1596
15. 15.3.4 × 0.8 — where does the decimal point go? (a) 0.0272 (b) 2.72 (c) 0.272 (d) 27.2
16. 16.3.1 × 15 — where does the decimal point go? (a) 4.65 (b) 465 (c) 46.5 (d) 0.465
17. 17.9.8 × 4 — where does the decimal point go? (a) 392 (b) 3.92 (c) 39.2 (d) 0.392
18. 18.0.93 × 3 — where does the decimal point go? (a) 0.279 (b) 27.9 (c) 0.0279 (d) 2.79
19. 19.7.6 × 0.8 — where does the decimal point go? (a) 0.608 (b) 6.08 (c) 60.8 (d) 0.0608
20. 20.4.1 × 2 — where does the decimal point go? (a) 0.82 (b) 82 (c) 8.2 (d) 0.082
21. 21.4.2 × 22 — where does the decimal point go? (a) 0.924 (b) 92.4 (c) 9.24 (d) 924
22. 22.0.53 × 25 — where does the decimal point go? (a) 13.25 (b) 132.5 (c) 0.1325 (d) 1.325
23. 23.7.8 × 1.6 — where does the decimal point go? (a) 12.48 (b) 1.248 (c) 124.8 (d) 0.1248
24. 24.0.23 × 1.2 — where does the decimal point go? (a) 0.276 (b) 0.00276 (c) 0.0276 (d) 2.76
25. 25.0.78 × 4.2 — where does the decimal point go? (a) 0.3276 (b) 0.03276 (c) 3.276 (d) 32.76
26. 26.0.56 × 0.3 — where does the decimal point go? (a) 0.00168 (b) 0.0168 (c) 1.68 (d) 0.168
27. 27.7.6 × 4.9 — where does the decimal point go? (a) 37.24 (b) 0.3724 (c) 372.4 (d) 3.724
28. 28.0.85 × 43 — where does the decimal point go? (a) 36.55 (b) 365.5 (c) 3.655 (d) 0.3655
29. 29.7.1 × 0.3 — where does the decimal point go? (a) 0.213 (b) 0.0213 (c) 2.13 (d) 21.3
30. 30.0.27 × 5 — where does the decimal point go? (a) 0.135 (b) 0.0135 (c) 13.5 (d) 1.35
31. 31.5.8 × 0.3 — where does the decimal point go? (a) 0.174 (b) 0.0174 (c) 17.4 (d) 1.74
32. 32.0.87 × 4 — where does the decimal point go? (a) 34.8 (b) 0.0348 (c) 0.348 (d) 3.48
33. 33.4.2 × 0.7 — where does the decimal point go? (a) 29.4 (b) 0.0294 (c) 0.294 (d) 2.94
34. 34.2.1 × 34 — where does the decimal point go? (a) 714 (b) 71.4 (c) 0.714 (d) 7.14
35. 35.0.23 × 32 — where does the decimal point go? (a) 0.736 (b) 0.0736 (c) 73.6 (d) 7.36
36. 36.7.8 × 41 — where does the decimal point go? (a) 3.198 (b) 31.98 (c) 319.8 (d) 3198
37. 37.8.1 × 33 — where does the decimal point go? (a) 2.673 (b) 2673 (c) 26.73 (d) 267.3
38. 38.7.2 × 1.8 — where does the decimal point go? (a) 1.296 (b) 0.1296 (c) 129.6 (d) 12.96
39. 39.0.81 × 0.5 — where does the decimal point go? (a) 0.405 (b) 0.0405 (c) 0.00405 (d) 4.05
40. 40.0.13 × 3.8 — where does the decimal point go? (a) 0.0494 (b) 0.494 (c) 0.00494 (d) 4.94

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