Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 376 · 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. 1.1.4 × 24 — where does the decimal point go? (a) 3.36 (b) 33.6 (c) 336 (d) 0.336
2. 2.2.1 × 0.5 — where does the decimal point go? (a) 0.105 (b) 1.05 (c) 0.0105 (d) 10.5
3. 3.5.9 × 9 — where does the decimal point go? (a) 0.531 (b) 5.31 (c) 53.1 (d) 531
4. 4.0.62 × 1.8 — where does the decimal point go? (a) 1.116 (b) 0.1116 (c) 0.01116 (d) 11.16
5. 5.9.1 × 12 — where does the decimal point go? (a) 109.2 (b) 10.92 (c) 1092 (d) 1.092
6. 6.0.18 × 38 — where does the decimal point go? (a) 68.4 (b) 6.84 (c) 0.0684 (d) 0.684
7. 7.9.7 × 0.3 — where does the decimal point go? (a) 2.91 (b) 29.1 (c) 0.0291 (d) 0.291
8. 8.4.2 × 24 — where does the decimal point go? (a) 1008 (b) 1.008 (c) 100.8 (d) 10.08
9. 9.2.6 × 8 — where does the decimal point go? (a) 2.08 (b) 20.8 (c) 0.208 (d) 208
10. 10.1.8 × 9 — where does the decimal point go? (a) 16.2 (b) 162 (c) 1.62 (d) 0.162
11. 11.0.29 × 14 — where does the decimal point go? (a) 0.0406 (b) 0.406 (c) 4.06 (d) 40.6
12. 12.0.32 × 42 — where does the decimal point go? (a) 1.344 (b) 0.1344 (c) 134.4 (d) 13.44
13. 13.9.2 × 2.8 — where does the decimal point go? (a) 0.2576 (b) 257.6 (c) 25.76 (d) 2.576
14. 14.0.46 × 36 — where does the decimal point go? (a) 165.6 (b) 16.56 (c) 1.656 (d) 0.1656
15. 15.9.9 × 29 — where does the decimal point go? (a) 2871 (b) 2.871 (c) 28.71 (d) 287.1
16. 16.9.2 × 0.4 — where does the decimal point go? (a) 3.68 (b) 0.0368 (c) 0.368 (d) 36.8
17. 17.3.6 × 26 — where does the decimal point go? (a) 9.36 (b) 0.936 (c) 936 (d) 93.6
18. 18.6.8 × 0.9 — where does the decimal point go? (a) 6.12 (b) 0.0612 (c) 0.612 (d) 61.2
19. 19.0.76 × 17 — where does the decimal point go? (a) 0.1292 (b) 1.292 (c) 129.2 (d) 12.92
20. 20.5.2 × 32 — where does the decimal point go? (a) 1.664 (b) 1664 (c) 16.64 (d) 166.4
21. 21.0.22 × 3 — where does the decimal point go? (a) 0.066 (b) 0.66 (c) 6.6 (d) 0.0066
22. 22.7.9 × 0.3 — where does the decimal point go? (a) 2.37 (b) 0.0237 (c) 23.7 (d) 0.237
23. 23.0.62 × 0.6 — where does the decimal point go? (a) 0.00372 (b) 0.372 (c) 0.0372 (d) 3.72
24. 24.1.4 × 7 — where does the decimal point go? (a) 9.8 (b) 0.098 (c) 98 (d) 0.98
25. 25.5.6 × 0.9 — where does the decimal point go? (a) 5.04 (b) 0.504 (c) 0.0504 (d) 50.4
26. 26.0.87 × 2.7 — where does the decimal point go? (a) 2.349 (b) 0.02349 (c) 23.49 (d) 0.2349
27. 27.0.21 × 0.3 — where does the decimal point go? (a) 0.63 (b) 0.063 (c) 0.0063 (d) 0.00063
28. 28.6.2 × 19 — where does the decimal point go? (a) 1.178 (b) 11.78 (c) 1178 (d) 117.8
29. 29.0.41 × 8 — where does the decimal point go? (a) 0.328 (b) 32.8 (c) 0.0328 (d) 3.28
30. 30.0.29 × 21 — where does the decimal point go? (a) 6.09 (b) 0.0609 (c) 0.609 (d) 60.9
31. 31.0.21 × 4.6 — where does the decimal point go? (a) 0.966 (b) 0.0966 (c) 0.00966 (d) 9.66
32. 32.7.7 × 32 — where does the decimal point go? (a) 246.4 (b) 2.464 (c) 24.64 (d) 2464
33. 33.0.29 × 6 — where does the decimal point go? (a) 0.0174 (b) 0.174 (c) 1.74 (d) 17.4
34. 34.2.3 × 0.8 — where does the decimal point go? (a) 18.4 (b) 0.0184 (c) 0.184 (d) 1.84
35. 35.5.8 × 48 — where does the decimal point go? (a) 27.84 (b) 2.784 (c) 278.4 (d) 2784
36. 36.0.83 × 39 — where does the decimal point go? (a) 3.237 (b) 0.3237 (c) 323.7 (d) 32.37
37. 37.8.4 × 29 — where does the decimal point go? (a) 2436 (b) 24.36 (c) 2.436 (d) 243.6
38. 38.0.21 × 8 — where does the decimal point go? (a) 16.8 (b) 0.168 (c) 0.0168 (d) 1.68
39. 39.0.31 × 27 — where does the decimal point go? (a) 83.7 (b) 0.0837 (c) 8.37 (d) 0.837
40. 40.5.3 × 0.2 — where does the decimal point go? (a) 1.06 (b) 0.0106 (c) 10.6 (d) 0.106

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