Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 475 · 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. 1.0.18 × 37 — where does the decimal point go? (a) 0.666 (b) 6.66 (c) 66.6 (d) 0.0666
2. 2.0.47 × 1.2 — where does the decimal point go? (a) 0.564 (b) 0.00564 (c) 5.64 (d) 0.0564
3. 3.0.92 × 4.8 — where does the decimal point go? (a) 0.4416 (b) 44.16 (c) 4.416 (d) 0.04416
4. 4.4.5 × 35 — where does the decimal point go? (a) 1.575 (b) 1575 (c) 15.75 (d) 157.5
5. 5.0.38 × 0.8 — where does the decimal point go? (a) 0.304 (b) 3.04 (c) 0.0304 (d) 0.00304
6. 6.1.9 × 4.6 — where does the decimal point go? (a) 0.874 (b) 0.0874 (c) 8.74 (d) 87.4
7. 7.0.41 × 49 — where does the decimal point go? (a) 0.2009 (b) 200.9 (c) 2.009 (d) 20.09
8. 8.0.34 × 8 — where does the decimal point go? (a) 27.2 (b) 0.0272 (c) 2.72 (d) 0.272
9. 9.4.4 × 9 — where does the decimal point go? (a) 39.6 (b) 3.96 (c) 396 (d) 0.396
10. 10.2.7 × 0.4 — where does the decimal point go? (a) 0.108 (b) 0.0108 (c) 10.8 (d) 1.08
11. 11.0.26 × 46 — where does the decimal point go? (a) 11.96 (b) 1.196 (c) 0.1196 (d) 119.6
12. 12.1.4 × 0.7 — where does the decimal point go? (a) 9.8 (b) 0.098 (c) 0.98 (d) 0.0098
13. 13.5.6 × 1.9 — where does the decimal point go? (a) 0.1064 (b) 10.64 (c) 1.064 (d) 106.4
14. 14.1.7 × 2.3 — where does the decimal point go? (a) 0.0391 (b) 39.1 (c) 0.391 (d) 3.91
15. 15.5.9 × 0.9 — where does the decimal point go? (a) 5.31 (b) 53.1 (c) 0.0531 (d) 0.531
16. 16.2.8 × 2 — where does the decimal point go? (a) 0.56 (b) 0.056 (c) 56 (d) 5.6
17. 17.0.68 × 3 — where does the decimal point go? (a) 0.204 (b) 2.04 (c) 20.4 (d) 0.0204
18. 18.7.7 × 46 — where does the decimal point go? (a) 354.2 (b) 3.542 (c) 3542 (d) 35.42
19. 19.0.53 × 13 — where does the decimal point go? (a) 6.89 (b) 0.689 (c) 68.9 (d) 0.0689
20. 20.7.7 × 0.4 — where does the decimal point go? (a) 3.08 (b) 0.0308 (c) 0.308 (d) 30.8
21. 21.0.82 × 0.8 — where does the decimal point go? (a) 0.00656 (b) 6.56 (c) 0.656 (d) 0.0656
22. 22.0.34 × 2 — where does the decimal point go? (a) 0.68 (b) 0.068 (c) 6.8 (d) 0.0068
23. 23.0.18 × 0.2 — where does the decimal point go? (a) 0.0036 (b) 0.00036 (c) 0.36 (d) 0.036
24. 24.1.9 × 1.1 — where does the decimal point go? (a) 0.209 (b) 0.0209 (c) 2.09 (d) 20.9
25. 25.1.5 × 1.1 — where does the decimal point go? (a) 16.5 (b) 1.65 (c) 0.165 (d) 0.0165
26. 26.2.6 × 0.8 — where does the decimal point go? (a) 2.08 (b) 0.208 (c) 20.8 (d) 0.0208
27. 27.4.9 × 2.8 — where does the decimal point go? (a) 1.372 (b) 0.1372 (c) 137.2 (d) 13.72
28. 28.0.46 × 24 — where does the decimal point go? (a) 110.4 (b) 0.1104 (c) 1.104 (d) 11.04
29. 29.0.92 × 33 — where does the decimal point go? (a) 30.36 (b) 303.6 (c) 0.3036 (d) 3.036
30. 30.0.79 × 2.8 — where does the decimal point go? (a) 2.212 (b) 0.2212 (c) 22.12 (d) 0.02212
31. 31.0.59 × 13 — where does the decimal point go? (a) 76.7 (b) 0.767 (c) 0.0767 (d) 7.67
32. 32.4.6 × 0.4 — where does the decimal point go? (a) 0.184 (b) 1.84 (c) 18.4 (d) 0.0184
33. 33.0.21 × 0.9 — where does the decimal point go? (a) 0.00189 (b) 0.189 (c) 1.89 (d) 0.0189
34. 34.7.7 × 4.8 — where does the decimal point go? (a) 3.696 (b) 36.96 (c) 369.6 (d) 0.3696
35. 35.2.5 × 21 — where does the decimal point go? (a) 0.525 (b) 525 (c) 52.5 (d) 5.25
36. 36.0.15 × 0.9 — where does the decimal point go? (a) 0.00135 (b) 0.0135 (c) 1.35 (d) 0.135
37. 37.8.3 × 6 — where does the decimal point go? (a) 0.498 (b) 498 (c) 49.8 (d) 4.98
38. 38.4.7 × 24 — where does the decimal point go? (a) 112.8 (b) 1128 (c) 11.28 (d) 1.128
39. 39.2.8 × 48 — where does the decimal point go? (a) 1.344 (b) 13.44 (c) 1344 (d) 134.4
40. 40.0.34 × 3 — where does the decimal point go? (a) 0.0102 (b) 1.02 (c) 10.2 (d) 0.102

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