Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 927 · 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. 1.5.9 × 3 — where does the decimal point go? (a) 177 (b) 0.177 (c) 1.77 (d) 17.7
2. 2.9.7 × 24 — where does the decimal point go? (a) 23.28 (b) 232.8 (c) 2.328 (d) 2328
3. 3.0.24 × 3.3 — where does the decimal point go? (a) 0.00792 (b) 7.92 (c) 0.792 (d) 0.0792
4. 4.0.65 × 47 — where does the decimal point go? (a) 0.3055 (b) 3.055 (c) 30.55 (d) 305.5
5. 5.5.2 × 1.1 — where does the decimal point go? (a) 0.572 (b) 0.0572 (c) 57.2 (d) 5.72
6. 6.6.8 × 0.4 — where does the decimal point go? (a) 2.72 (b) 0.272 (c) 0.0272 (d) 27.2
7. 7.7.5 × 7 — where does the decimal point go? (a) 525 (b) 0.525 (c) 52.5 (d) 5.25
8. 8.0.38 × 32 — where does the decimal point go? (a) 1.216 (b) 12.16 (c) 121.6 (d) 0.1216
9. 9.0.19 × 0.5 — where does the decimal point go? (a) 0.95 (b) 0.095 (c) 0.0095 (d) 0.00095
10. 10.7.8 × 3 — where does the decimal point go? (a) 23.4 (b) 234 (c) 2.34 (d) 0.234
11. 11.4.6 × 0.6 — where does the decimal point go? (a) 0.0276 (b) 0.276 (c) 27.6 (d) 2.76
12. 12.0.66 × 0.9 — where does the decimal point go? (a) 0.594 (b) 0.0594 (c) 5.94 (d) 0.00594
13. 13.3.1 × 3.5 — where does the decimal point go? (a) 0.1085 (b) 10.85 (c) 1.085 (d) 108.5
14. 14.0.43 × 0.2 — where does the decimal point go? (a) 0.86 (b) 0.0086 (c) 0.00086 (d) 0.086
15. 15.0.14 × 0.6 — where does the decimal point go? (a) 0.00084 (b) 0.084 (c) 0.84 (d) 0.0084
16. 16.0.89 × 0.7 — where does the decimal point go? (a) 0.0623 (b) 0.00623 (c) 0.623 (d) 6.23
17. 17.0.48 × 2 — where does the decimal point go? (a) 9.6 (b) 0.0096 (c) 0.096 (d) 0.96
18. 18.1.9 × 2.6 — where does the decimal point go? (a) 0.0494 (b) 0.494 (c) 49.4 (d) 4.94
19. 19.0.68 × 0.9 — where does the decimal point go? (a) 0.00612 (b) 0.612 (c) 0.0612 (d) 6.12
20. 20.0.58 × 19 — where does the decimal point go? (a) 110.2 (b) 0.1102 (c) 11.02 (d) 1.102
21. 21.0.57 × 0.3 — where does the decimal point go? (a) 0.171 (b) 1.71 (c) 0.00171 (d) 0.0171
22. 22.0.32 × 0.6 — where does the decimal point go? (a) 1.92 (b) 0.0192 (c) 0.192 (d) 0.00192
23. 23.0.51 × 4 — where does the decimal point go? (a) 20.4 (b) 2.04 (c) 0.0204 (d) 0.204
24. 24.0.32 × 39 — where does the decimal point go? (a) 12.48 (b) 0.1248 (c) 124.8 (d) 1.248
25. 25.0.81 × 5 — where does the decimal point go? (a) 4.05 (b) 0.0405 (c) 40.5 (d) 0.405
26. 26.1.8 × 17 — where does the decimal point go? (a) 30.6 (b) 3.06 (c) 306 (d) 0.306
27. 27.0.88 × 2.2 — where does the decimal point go? (a) 1.936 (b) 19.36 (c) 0.01936 (d) 0.1936
28. 28.8.4 × 0.8 — where does the decimal point go? (a) 67.2 (b) 0.0672 (c) 0.672 (d) 6.72
29. 29.0.62 × 3.8 — where does the decimal point go? (a) 2.356 (b) 0.2356 (c) 23.56 (d) 0.02356
30. 30.0.55 × 3 — where does the decimal point go? (a) 0.165 (b) 16.5 (c) 1.65 (d) 0.0165
31. 31.4.9 × 32 — where does the decimal point go? (a) 1568 (b) 1.568 (c) 156.8 (d) 15.68
32. 32.0.13 × 0.2 — where does the decimal point go? (a) 0.026 (b) 0.26 (c) 0.00026 (d) 0.0026
33. 33.0.24 × 7 — where does the decimal point go? (a) 0.0168 (b) 0.168 (c) 1.68 (d) 16.8
34. 34.7.1 × 41 — where does the decimal point go? (a) 291.1 (b) 2911 (c) 29.11 (d) 2.911
35. 35.3.3 × 0.9 — where does the decimal point go? (a) 29.7 (b) 0.297 (c) 2.97 (d) 0.0297
36. 36.6.7 × 0.6 — where does the decimal point go? (a) 0.402 (b) 0.0402 (c) 40.2 (d) 4.02
37. 37.0.86 × 0.3 — where does the decimal point go? (a) 2.58 (b) 0.0258 (c) 0.00258 (d) 0.258
38. 38.0.26 × 0.7 — where does the decimal point go? (a) 0.0182 (b) 0.00182 (c) 1.82 (d) 0.182
39. 39.0.58 × 2 — where does the decimal point go? (a) 1.16 (b) 0.0116 (c) 0.116 (d) 11.6
40. 40.0.13 × 32 — where does the decimal point go? (a) 0.416 (b) 4.16 (c) 0.0416 (d) 41.6

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