Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 946 · 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. 1.4.9 × 4 — where does the decimal point go? (a) 196 (b) 1.96 (c) 19.6 (d) 0.196
2. 2.6.1 × 44 — where does the decimal point go? (a) 2.684 (b) 2684 (c) 26.84 (d) 268.4
3. 3.6.8 × 37 — where does the decimal point go? (a) 2.516 (b) 251.6 (c) 2516 (d) 25.16
4. 4.2.4 × 43 — where does the decimal point go? (a) 1032 (b) 1.032 (c) 10.32 (d) 103.2
5. 5.8.1 × 0.3 — where does the decimal point go? (a) 0.0243 (b) 2.43 (c) 0.243 (d) 24.3
6. 6.2.8 × 4 — where does the decimal point go? (a) 0.112 (b) 11.2 (c) 112 (d) 1.12
7. 7.8.8 × 0.2 — where does the decimal point go? (a) 1.76 (b) 0.176 (c) 17.6 (d) 0.0176
8. 8.1.8 × 48 — where does the decimal point go? (a) 8.64 (b) 0.864 (c) 864 (d) 86.4
9. 9.9.3 × 1.2 — where does the decimal point go? (a) 0.1116 (b) 11.16 (c) 111.6 (d) 1.116
10. 10.5.4 × 0.8 — where does the decimal point go? (a) 4.32 (b) 0.432 (c) 0.0432 (d) 43.2
11. 11.0.97 × 2.7 — where does the decimal point go? (a) 0.02619 (b) 2.619 (c) 26.19 (d) 0.2619
12. 12.3.3 × 0.3 — where does the decimal point go? (a) 0.99 (b) 9.9 (c) 0.099 (d) 0.0099
13. 13.0.52 × 1.3 — where does the decimal point go? (a) 0.0676 (b) 0.676 (c) 6.76 (d) 0.00676
14. 14.7.9 × 9 — where does the decimal point go? (a) 71.1 (b) 0.711 (c) 7.11 (d) 711
15. 15.0.69 × 4.4 — where does the decimal point go? (a) 0.3036 (b) 30.36 (c) 0.03036 (d) 3.036
16. 16.1.6 × 0.4 — where does the decimal point go? (a) 6.4 (b) 0.0064 (c) 0.064 (d) 0.64
17. 17.3.8 × 1.1 — where does the decimal point go? (a) 4.18 (b) 0.0418 (c) 0.418 (d) 41.8
18. 18.0.57 × 4 — where does the decimal point go? (a) 0.228 (b) 2.28 (c) 0.0228 (d) 22.8
19. 19.1.7 × 39 — where does the decimal point go? (a) 0.663 (b) 6.63 (c) 663 (d) 66.3
20. 20.0.76 × 21 — where does the decimal point go? (a) 1.596 (b) 159.6 (c) 0.1596 (d) 15.96
21. 21.9.1 × 9 — where does the decimal point go? (a) 819 (b) 0.819 (c) 8.19 (d) 81.9
22. 22.2.6 × 0.7 — where does the decimal point go? (a) 18.2 (b) 0.182 (c) 0.0182 (d) 1.82
23. 23.0.61 × 0.9 — where does the decimal point go? (a) 0.00549 (b) 5.49 (c) 0.0549 (d) 0.549
24. 24.8.1 × 43 — where does the decimal point go? (a) 3483 (b) 34.83 (c) 348.3 (d) 3.483
25. 25.0.62 × 0.8 — where does the decimal point go? (a) 0.496 (b) 0.00496 (c) 0.0496 (d) 4.96
26. 26.0.87 × 0.3 — where does the decimal point go? (a) 0.0261 (b) 2.61 (c) 0.00261 (d) 0.261
27. 27.0.47 × 0.5 — where does the decimal point go? (a) 0.0235 (b) 0.235 (c) 2.35 (d) 0.00235
28. 28.0.27 × 4 — where does the decimal point go? (a) 1.08 (b) 0.108 (c) 0.0108 (d) 10.8
29. 29.0.67 × 49 — where does the decimal point go? (a) 32.83 (b) 0.3283 (c) 328.3 (d) 3.283
30. 30.0.45 × 3.3 — where does the decimal point go? (a) 14.85 (b) 0.01485 (c) 0.1485 (d) 1.485
31. 31.0.78 × 7 — where does the decimal point go? (a) 54.6 (b) 0.0546 (c) 5.46 (d) 0.546
32. 32.0.29 × 43 — where does the decimal point go? (a) 0.1247 (b) 12.47 (c) 124.7 (d) 1.247
33. 33.7.8 × 8 — where does the decimal point go? (a) 6.24 (b) 624 (c) 0.624 (d) 62.4
34. 34.0.18 × 2.6 — where does the decimal point go? (a) 0.468 (b) 4.68 (c) 0.00468 (d) 0.0468
35. 35.0.83 × 0.2 — where does the decimal point go? (a) 0.0166 (b) 0.00166 (c) 0.166 (d) 1.66
36. 36.0.94 × 13 — where does the decimal point go? (a) 12.22 (b) 122.2 (c) 1.222 (d) 0.1222
37. 37.0.83 × 2 — where does the decimal point go? (a) 0.166 (b) 16.6 (c) 0.0166 (d) 1.66
38. 38.5.9 × 2.7 — where does the decimal point go? (a) 15.93 (b) 1.593 (c) 0.1593 (d) 159.3
39. 39.9.6 × 13 — where does the decimal point go? (a) 1.248 (b) 1248 (c) 124.8 (d) 12.48
40. 40.0.41 × 0.8 — where does the decimal point go? (a) 0.0328 (b) 0.328 (c) 0.00328 (d) 3.28

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