Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 853 · 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. 1.8.7 × 22 — where does the decimal point go? (a) 19.14 (b) 191.4 (c) 1914 (d) 1.914
2. 2.8.8 × 4 — where does the decimal point go? (a) 352 (b) 0.352 (c) 3.52 (d) 35.2
3. 3.0.22 × 8 — where does the decimal point go? (a) 17.6 (b) 1.76 (c) 0.176 (d) 0.0176
4. 4.6.6 × 41 — where does the decimal point go? (a) 2.706 (b) 27.06 (c) 270.6 (d) 2706
5. 5.1.8 × 14 — where does the decimal point go? (a) 25.2 (b) 252 (c) 2.52 (d) 0.252
6. 6.9.8 × 3.9 — where does the decimal point go? (a) 0.3822 (b) 38.22 (c) 3.822 (d) 382.2
7. 7.3.1 × 3.3 — where does the decimal point go? (a) 1.023 (b) 10.23 (c) 0.1023 (d) 102.3
8. 8.1.2 × 3.1 — where does the decimal point go? (a) 3.72 (b) 37.2 (c) 0.0372 (d) 0.372
9. 9.2.7 × 0.7 — where does the decimal point go? (a) 0.0189 (b) 18.9 (c) 0.189 (d) 1.89
10. 10.7.6 × 0.3 — where does the decimal point go? (a) 2.28 (b) 0.228 (c) 22.8 (d) 0.0228
11. 11.0.57 × 0.2 — where does the decimal point go? (a) 0.0114 (b) 0.00114 (c) 0.114 (d) 1.14
12. 12.0.38 × 2 — where does the decimal point go? (a) 0.076 (b) 0.0076 (c) 7.6 (d) 0.76
13. 13.0.27 × 2 — where does the decimal point go? (a) 5.4 (b) 0.54 (c) 0.0054 (d) 0.054
14. 14.7.4 × 0.2 — where does the decimal point go? (a) 1.48 (b) 0.148 (c) 0.0148 (d) 14.8
15. 15.4.6 × 4.6 — where does the decimal point go? (a) 21.16 (b) 0.2116 (c) 211.6 (d) 2.116
16. 16.0.73 × 3.5 — where does the decimal point go? (a) 25.55 (b) 2.555 (c) 0.02555 (d) 0.2555
17. 17.0.28 × 4.8 — where does the decimal point go? (a) 1.344 (b) 0.01344 (c) 13.44 (d) 0.1344
18. 18.8.4 × 9 — where does the decimal point go? (a) 756 (b) 75.6 (c) 0.756 (d) 7.56
19. 19.0.22 × 18 — where does the decimal point go? (a) 3.96 (b) 39.6 (c) 0.396 (d) 0.0396
20. 20.0.69 × 0.9 — where does the decimal point go? (a) 0.00621 (b) 0.621 (c) 0.0621 (d) 6.21
21. 21.7.4 × 1.2 — where does the decimal point go? (a) 8.88 (b) 0.0888 (c) 88.8 (d) 0.888
22. 22.3.9 × 5 — where does the decimal point go? (a) 1.95 (b) 0.195 (c) 19.5 (d) 195
23. 23.6.3 × 42 — where does the decimal point go? (a) 2.646 (b) 264.6 (c) 26.46 (d) 2646
24. 24.0.76 × 2.2 — where does the decimal point go? (a) 1.672 (b) 0.01672 (c) 0.1672 (d) 16.72
25. 25.1.8 × 36 — where does the decimal point go? (a) 6.48 (b) 648 (c) 64.8 (d) 0.648
26. 26.5.9 × 4.6 — where does the decimal point go? (a) 0.2714 (b) 271.4 (c) 27.14 (d) 2.714
27. 27.3.3 × 3.4 — where does the decimal point go? (a) 11.22 (b) 0.1122 (c) 112.2 (d) 1.122
28. 28.8.9 × 0.2 — where does the decimal point go? (a) 0.0178 (b) 1.78 (c) 0.178 (d) 17.8
29. 29.8.6 × 41 — where does the decimal point go? (a) 3526 (b) 352.6 (c) 35.26 (d) 3.526
30. 30.0.88 × 0.7 — where does the decimal point go? (a) 0.00616 (b) 0.616 (c) 0.0616 (d) 6.16
31. 31.3.3 × 8 — where does the decimal point go? (a) 2.64 (b) 26.4 (c) 0.264 (d) 264
32. 32.0.75 × 2.3 — where does the decimal point go? (a) 0.01725 (b) 1.725 (c) 0.1725 (d) 17.25
33. 33.0.21 × 24 — where does the decimal point go? (a) 0.0504 (b) 5.04 (c) 0.504 (d) 50.4
34. 34.4.3 × 46 — where does the decimal point go? (a) 197.8 (b) 1.978 (c) 1978 (d) 19.78
35. 35.0.78 × 4.7 — where does the decimal point go? (a) 3.666 (b) 36.66 (c) 0.3666 (d) 0.03666
36. 36.6.3 × 6 — where does the decimal point go? (a) 3.78 (b) 37.8 (c) 0.378 (d) 378
37. 37.0.35 × 27 — where does the decimal point go? (a) 9.45 (b) 0.945 (c) 0.0945 (d) 94.5
38. 38.0.47 × 8 — where does the decimal point go? (a) 37.6 (b) 3.76 (c) 0.0376 (d) 0.376
39. 39.0.47 × 0.6 — where does the decimal point go? (a) 0.00282 (b) 0.0282 (c) 2.82 (d) 0.282
40. 40.0.83 × 24 — where does the decimal point go? (a) 19.92 (b) 1.992 (c) 199.2 (d) 0.1992

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