Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 627 · 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. 1.0.61 × 44 — where does the decimal point go? (a) 2.684 (b) 26.84 (c) 0.2684 (d) 268.4
2. 2.6.9 × 0.4 — where does the decimal point go? (a) 0.276 (b) 0.0276 (c) 27.6 (d) 2.76
3. 3.2.7 × 49 — where does the decimal point go? (a) 1.323 (b) 132.3 (c) 13.23 (d) 1323
4. 4.8.9 × 4.4 — where does the decimal point go? (a) 39.16 (b) 3.916 (c) 391.6 (d) 0.3916
5. 5.1.9 × 9 — where does the decimal point go? (a) 171 (b) 17.1 (c) 0.171 (d) 1.71
6. 6.0.43 × 3 — where does the decimal point go? (a) 1.29 (b) 12.9 (c) 0.0129 (d) 0.129
7. 7.0.93 × 4 — where does the decimal point go? (a) 0.0372 (b) 3.72 (c) 0.372 (d) 37.2
8. 8.0.91 × 1.6 — where does the decimal point go? (a) 14.56 (b) 0.1456 (c) 0.01456 (d) 1.456
9. 9.0.84 × 48 — where does the decimal point go? (a) 40.32 (b) 0.4032 (c) 403.2 (d) 4.032
10. 10.0.51 × 0.4 — where does the decimal point go? (a) 0.0204 (b) 0.204 (c) 0.00204 (d) 2.04
11. 11.4.1 × 2 — where does the decimal point go? (a) 8.2 (b) 0.082 (c) 0.82 (d) 82
12. 12.0.14 × 0.9 — where does the decimal point go? (a) 1.26 (b) 0.0126 (c) 0.126 (d) 0.00126
13. 13.0.22 × 4 — where does the decimal point go? (a) 0.088 (b) 0.88 (c) 8.8 (d) 0.0088
14. 14.1.7 × 1.4 — where does the decimal point go? (a) 0.0238 (b) 23.8 (c) 0.238 (d) 2.38
15. 15.0.93 × 27 — where does the decimal point go? (a) 0.2511 (b) 2.511 (c) 251.1 (d) 25.11
16. 16.0.13 × 0.5 — where does the decimal point go? (a) 0.65 (b) 0.065 (c) 0.00065 (d) 0.0065
17. 17.0.91 × 16 — where does the decimal point go? (a) 1.456 (b) 0.1456 (c) 145.6 (d) 14.56
18. 18.3.9 × 44 — where does the decimal point go? (a) 17.16 (b) 1716 (c) 1.716 (d) 171.6
19. 19.0.15 × 17 — where does the decimal point go? (a) 25.5 (b) 0.255 (c) 0.0255 (d) 2.55
20. 20.0.49 × 0.9 — where does the decimal point go? (a) 0.441 (b) 4.41 (c) 0.0441 (d) 0.00441
21. 21.0.57 × 3.6 — where does the decimal point go? (a) 0.02052 (b) 2.052 (c) 0.2052 (d) 20.52
22. 22.1.8 × 0.4 — where does the decimal point go? (a) 0.72 (b) 0.072 (c) 0.0072 (d) 7.2
23. 23.0.78 × 0.6 — where does the decimal point go? (a) 0.468 (b) 4.68 (c) 0.0468 (d) 0.00468
24. 24.0.45 × 4.7 — where does the decimal point go? (a) 0.2115 (b) 21.15 (c) 2.115 (d) 0.02115
25. 25.0.81 × 37 — where does the decimal point go? (a) 2.997 (b) 29.97 (c) 299.7 (d) 0.2997
26. 26.2.6 × 3.7 — where does the decimal point go? (a) 0.962 (b) 9.62 (c) 0.0962 (d) 96.2
27. 27.2.2 × 36 — where does the decimal point go? (a) 7.92 (b) 0.792 (c) 792 (d) 79.2
28. 28.0.24 × 7 — where does the decimal point go? (a) 1.68 (b) 0.0168 (c) 16.8 (d) 0.168
29. 29.4.4 × 6 — where does the decimal point go? (a) 26.4 (b) 2.64 (c) 264 (d) 0.264
30. 30.4.3 × 27 — where does the decimal point go? (a) 11.61 (b) 1.161 (c) 1161 (d) 116.1
31. 31.0.42 × 47 — where does the decimal point go? (a) 197.4 (b) 0.1974 (c) 19.74 (d) 1.974
32. 32.4.9 × 3.4 — where does the decimal point go? (a) 0.1666 (b) 16.66 (c) 1.666 (d) 166.6
33. 33.0.43 × 1.1 — where does the decimal point go? (a) 0.00473 (b) 0.0473 (c) 4.73 (d) 0.473
34. 34.7.9 × 42 — where does the decimal point go? (a) 331.8 (b) 33.18 (c) 3.318 (d) 3318
35. 35.4.5 × 0.7 — where does the decimal point go? (a) 3.15 (b) 31.5 (c) 0.0315 (d) 0.315
36. 36.5.6 × 44 — where does the decimal point go? (a) 24.64 (b) 246.4 (c) 2.464 (d) 2464
37. 37.7.3 × 3 — where does the decimal point go? (a) 219 (b) 0.219 (c) 21.9 (d) 2.19
38. 38.8.1 × 0.2 — where does the decimal point go? (a) 0.162 (b) 1.62 (c) 0.0162 (d) 16.2
39. 39.0.16 × 6 — where does the decimal point go? (a) 0.96 (b) 9.6 (c) 0.096 (d) 0.0096
40. 40.3.8 × 0.9 — where does the decimal point go? (a) 0.342 (b) 34.2 (c) 0.0342 (d) 3.42

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