Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 805 · 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. 1.0.72 × 0.8 — where does the decimal point go? (a) 5.76 (b) 0.00576 (c) 0.576 (d) 0.0576
2. 2.0.23 × 11 — where does the decimal point go? (a) 25.3 (b) 0.0253 (c) 0.253 (d) 2.53
3. 3.2.1 × 8 — where does the decimal point go? (a) 168 (b) 16.8 (c) 1.68 (d) 0.168
4. 4.0.37 × 0.8 — where does the decimal point go? (a) 0.296 (b) 0.00296 (c) 2.96 (d) 0.0296
5. 5.0.86 × 0.3 — where does the decimal point go? (a) 0.258 (b) 0.00258 (c) 2.58 (d) 0.0258
6. 6.0.84 × 8 — where does the decimal point go? (a) 6.72 (b) 0.672 (c) 67.2 (d) 0.0672
7. 7.0.19 × 4.8 — where does the decimal point go? (a) 0.912 (b) 0.0912 (c) 0.00912 (d) 9.12
8. 8.1.9 × 0.3 — where does the decimal point go? (a) 0.0057 (b) 0.57 (c) 0.057 (d) 5.7
9. 9.0.84 × 0.3 — where does the decimal point go? (a) 0.00252 (b) 2.52 (c) 0.0252 (d) 0.252
10. 10.0.71 × 2 — where does the decimal point go? (a) 1.42 (b) 14.2 (c) 0.0142 (d) 0.142
11. 11.8.9 × 32 — where does the decimal point go? (a) 2.848 (b) 284.8 (c) 28.48 (d) 2848
12. 12.0.76 × 4 — where does the decimal point go? (a) 0.0304 (b) 30.4 (c) 3.04 (d) 0.304
13. 13.5.4 × 0.2 — where does the decimal point go? (a) 10.8 (b) 0.108 (c) 0.0108 (d) 1.08
14. 14.8.7 × 2.8 — where does the decimal point go? (a) 2.436 (b) 0.2436 (c) 243.6 (d) 24.36
15. 15.6.1 × 3.4 — where does the decimal point go? (a) 0.2074 (b) 207.4 (c) 20.74 (d) 2.074
16. 16.0.37 × 16 — where does the decimal point go? (a) 0.0592 (b) 0.592 (c) 59.2 (d) 5.92
17. 17.5.9 × 49 — where does the decimal point go? (a) 2891 (b) 289.1 (c) 2.891 (d) 28.91
18. 18.9.1 × 36 — where does the decimal point go? (a) 32.76 (b) 3276 (c) 3.276 (d) 327.6
19. 19.0.71 × 0.2 — where does the decimal point go? (a) 0.0142 (b) 1.42 (c) 0.00142 (d) 0.142
20. 20.0.41 × 0.8 — where does the decimal point go? (a) 3.28 (b) 0.328 (c) 0.0328 (d) 0.00328
21. 21.2.9 × 0.4 — where does the decimal point go? (a) 0.116 (b) 11.6 (c) 1.16 (d) 0.0116
22. 22.0.13 × 1.8 — where does the decimal point go? (a) 0.00234 (b) 0.0234 (c) 2.34 (d) 0.234
23. 23.0.64 × 46 — where does the decimal point go? (a) 0.2944 (b) 2.944 (c) 294.4 (d) 29.44
24. 24.0.82 × 0.9 — where does the decimal point go? (a) 7.38 (b) 0.738 (c) 0.0738 (d) 0.00738
25. 25.3.7 × 9 — where does the decimal point go? (a) 0.333 (b) 3.33 (c) 333 (d) 33.3
26. 26.9.4 × 38 — where does the decimal point go? (a) 3572 (b) 357.2 (c) 35.72 (d) 3.572
27. 27.4.2 × 8 — where does the decimal point go? (a) 3.36 (b) 33.6 (c) 0.336 (d) 336
28. 28.0.26 × 9 — where does the decimal point go? (a) 2.34 (b) 23.4 (c) 0.0234 (d) 0.234
29. 29.0.26 × 2.4 — where does the decimal point go? (a) 0.00624 (b) 6.24 (c) 0.0624 (d) 0.624
30. 30.8.8 × 7 — where does the decimal point go? (a) 616 (b) 0.616 (c) 6.16 (d) 61.6
31. 31.0.45 × 47 — where does the decimal point go? (a) 2.115 (b) 211.5 (c) 0.2115 (d) 21.15
32. 32.7.7 × 4 — where does the decimal point go? (a) 30.8 (b) 308 (c) 3.08 (d) 0.308
33. 33.0.31 × 26 — where does the decimal point go? (a) 80.6 (b) 0.0806 (c) 8.06 (d) 0.806
34. 34.0.37 × 4.5 — where does the decimal point go? (a) 1.665 (b) 0.01665 (c) 0.1665 (d) 16.65
35. 35.8.9 × 23 — where does the decimal point go? (a) 2.047 (b) 204.7 (c) 20.47 (d) 2047
36. 36.0.35 × 4.1 — where does the decimal point go? (a) 14.35 (b) 1.435 (c) 0.1435 (d) 0.01435
37. 37.6.5 × 9 — where does the decimal point go? (a) 5.85 (b) 585 (c) 58.5 (d) 0.585
38. 38.0.72 × 4.9 — where does the decimal point go? (a) 3.528 (b) 0.3528 (c) 35.28 (d) 0.03528
39. 39.0.82 × 3.7 — where does the decimal point go? (a) 0.03034 (b) 30.34 (c) 0.3034 (d) 3.034
40. 40.7.9 × 8 — where does the decimal point go? (a) 6.32 (b) 632 (c) 0.632 (d) 63.2

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