Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 650 · 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. 1.0.51 × 27 — where does the decimal point go? (a) 0.1377 (b) 13.77 (c) 1.377 (d) 137.7
2. 2.0.87 × 4 — where does the decimal point go? (a) 34.8 (b) 3.48 (c) 0.348 (d) 0.0348
3. 3.1.3 × 8 — where does the decimal point go? (a) 0.104 (b) 1.04 (c) 104 (d) 10.4
4. 4.0.18 × 6 — where does the decimal point go? (a) 1.08 (b) 0.108 (c) 0.0108 (d) 10.8
5. 5.2.3 × 5 — where does the decimal point go? (a) 115 (b) 1.15 (c) 0.115 (d) 11.5
6. 6.0.24 × 29 — where does the decimal point go? (a) 6.96 (b) 0.696 (c) 69.6 (d) 0.0696
7. 7.3.8 × 1.7 — where does the decimal point go? (a) 64.6 (b) 6.46 (c) 0.646 (d) 0.0646
8. 8.5.1 × 1.4 — where does the decimal point go? (a) 0.714 (b) 0.0714 (c) 71.4 (d) 7.14
9. 9.0.88 × 2.1 — where does the decimal point go? (a) 0.01848 (b) 1.848 (c) 0.1848 (d) 18.48
10. 10.0.62 × 0.9 — where does the decimal point go? (a) 0.00558 (b) 0.0558 (c) 0.558 (d) 5.58
11. 11.0.43 × 16 — where does the decimal point go? (a) 6.88 (b) 68.8 (c) 0.688 (d) 0.0688
12. 12.0.51 × 0.8 — where does the decimal point go? (a) 4.08 (b) 0.408 (c) 0.0408 (d) 0.00408
13. 13.0.15 × 0.9 — where does the decimal point go? (a) 0.00135 (b) 1.35 (c) 0.0135 (d) 0.135
14. 14.0.54 × 3.7 — where does the decimal point go? (a) 1.998 (b) 0.1998 (c) 19.98 (d) 0.01998
15. 15.6.7 × 4 — where does the decimal point go? (a) 0.268 (b) 268 (c) 2.68 (d) 26.8
16. 16.0.89 × 0.2 — where does the decimal point go? (a) 0.0178 (b) 1.78 (c) 0.00178 (d) 0.178
17. 17.0.16 × 8 — where does the decimal point go? (a) 0.128 (b) 0.0128 (c) 12.8 (d) 1.28
18. 18.0.94 × 6 — where does the decimal point go? (a) 0.0564 (b) 56.4 (c) 0.564 (d) 5.64
19. 19.6.3 × 45 — where does the decimal point go? (a) 2.835 (b) 283.5 (c) 2835 (d) 28.35
20. 20.0.48 × 0.7 — where does the decimal point go? (a) 0.0336 (b) 0.00336 (c) 3.36 (d) 0.336
21. 21.0.79 × 7 — where does the decimal point go? (a) 0.553 (b) 0.0553 (c) 5.53 (d) 55.3
22. 22.0.64 × 2.7 — where does the decimal point go? (a) 1.728 (b) 0.01728 (c) 0.1728 (d) 17.28
23. 23.0.18 × 0.4 — where does the decimal point go? (a) 0.00072 (b) 0.0072 (c) 0.072 (d) 0.72
24. 24.6.7 × 0.5 — where does the decimal point go? (a) 0.0335 (b) 33.5 (c) 3.35 (d) 0.335
25. 25.0.86 × 17 — where does the decimal point go? (a) 14.62 (b) 1.462 (c) 0.1462 (d) 146.2
26. 26.4.5 × 3 — where does the decimal point go? (a) 1.35 (b) 0.135 (c) 13.5 (d) 135
27. 27.0.31 × 4 — where does the decimal point go? (a) 0.124 (b) 0.0124 (c) 1.24 (d) 12.4
28. 28.1.2 × 7 — where does the decimal point go? (a) 0.84 (b) 8.4 (c) 0.084 (d) 84
29. 29.5.5 × 0.5 — where does the decimal point go? (a) 0.275 (b) 0.0275 (c) 2.75 (d) 27.5
30. 30.0.58 × 41 — where does the decimal point go? (a) 0.2378 (b) 237.8 (c) 23.78 (d) 2.378
31. 31.0.16 × 0.2 — where does the decimal point go? (a) 0.00032 (b) 0.032 (c) 0.0032 (d) 0.32
32. 32.7.7 × 37 — where does the decimal point go? (a) 28.49 (b) 2849 (c) 284.9 (d) 2.849
33. 33.0.22 × 0.9 — where does the decimal point go? (a) 0.198 (b) 0.00198 (c) 1.98 (d) 0.0198
34. 34.0.52 × 0.6 — where does the decimal point go? (a) 0.312 (b) 3.12 (c) 0.00312 (d) 0.0312
35. 35.3.6 × 6 — where does the decimal point go? (a) 2.16 (b) 216 (c) 21.6 (d) 0.216
36. 36.1.5 × 1.3 — where does the decimal point go? (a) 0.0195 (b) 19.5 (c) 1.95 (d) 0.195
37. 37.0.53 × 1.8 — where does the decimal point go? (a) 0.00954 (b) 9.54 (c) 0.0954 (d) 0.954
38. 38.0.92 × 0.8 — where does the decimal point go? (a) 0.0736 (b) 0.00736 (c) 7.36 (d) 0.736
39. 39.1.5 × 2.3 — where does the decimal point go? (a) 0.0345 (b) 34.5 (c) 3.45 (d) 0.345
40. 40.6.6 × 7 — where does the decimal point go? (a) 462 (b) 0.462 (c) 46.2 (d) 4.62

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