Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 706 · 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. 1.1.6 × 2 — where does the decimal point go? (a) 0.032 (b) 0.32 (c) 3.2 (d) 32
2. 2.1.6 × 0.3 — where does the decimal point go? (a) 0.0048 (b) 0.48 (c) 0.048 (d) 4.8
3. 3.6.2 × 38 — where does the decimal point go? (a) 2356 (b) 235.6 (c) 2.356 (d) 23.56
4. 4.8.4 × 2 — where does the decimal point go? (a) 0.168 (b) 1.68 (c) 16.8 (d) 168
5. 5.0.19 × 6 — where does the decimal point go? (a) 11.4 (b) 0.0114 (c) 1.14 (d) 0.114
6. 6.5.7 × 0.7 — where does the decimal point go? (a) 0.399 (b) 0.0399 (c) 39.9 (d) 3.99
7. 7.6.1 × 2 — where does the decimal point go? (a) 12.2 (b) 0.122 (c) 122 (d) 1.22
8. 8.0.49 × 0.6 — where does the decimal point go? (a) 0.294 (b) 0.00294 (c) 2.94 (d) 0.0294
9. 9.4.9 × 0.4 — where does the decimal point go? (a) 1.96 (b) 0.0196 (c) 0.196 (d) 19.6
10. 10.4.3 × 0.4 — where does the decimal point go? (a) 17.2 (b) 0.0172 (c) 1.72 (d) 0.172
11. 11.0.87 × 11 — where does the decimal point go? (a) 9.57 (b) 95.7 (c) 0.957 (d) 0.0957
12. 12.0.78 × 1.9 — where does the decimal point go? (a) 1.482 (b) 0.01482 (c) 14.82 (d) 0.1482
13. 13.3.9 × 38 — where does the decimal point go? (a) 14.82 (b) 1.482 (c) 148.2 (d) 1482
14. 14.0.14 × 2 — where does the decimal point go? (a) 0.028 (b) 2.8 (c) 0.0028 (d) 0.28
15. 15.1.6 × 0.7 — where does the decimal point go? (a) 1.12 (b) 11.2 (c) 0.0112 (d) 0.112
16. 16.0.62 × 4.7 — where does the decimal point go? (a) 2.914 (b) 0.02914 (c) 29.14 (d) 0.2914
17. 17.0.22 × 26 — where does the decimal point go? (a) 0.0572 (b) 57.2 (c) 0.572 (d) 5.72
18. 18.1.2 × 0.7 — where does the decimal point go? (a) 8.4 (b) 0.0084 (c) 0.84 (d) 0.084
19. 19.0.43 × 35 — where does the decimal point go? (a) 15.05 (b) 0.1505 (c) 150.5 (d) 1.505
20. 20.1.8 × 4.1 — where does the decimal point go? (a) 7.38 (b) 0.738 (c) 0.0738 (d) 73.8
21. 21.3.5 × 7 — where does the decimal point go? (a) 24.5 (b) 245 (c) 2.45 (d) 0.245
22. 22.0.56 × 3 — where does the decimal point go? (a) 0.0168 (b) 16.8 (c) 0.168 (d) 1.68
23. 23.0.41 × 14 — where does the decimal point go? (a) 5.74 (b) 57.4 (c) 0.574 (d) 0.0574
24. 24.2.4 × 24 — where does the decimal point go? (a) 576 (b) 5.76 (c) 57.6 (d) 0.576
25. 25.0.99 × 0.5 — where does the decimal point go? (a) 0.0495 (b) 4.95 (c) 0.00495 (d) 0.495
26. 26.0.87 × 0.3 — where does the decimal point go? (a) 0.261 (b) 0.00261 (c) 0.0261 (d) 2.61
27. 27.0.44 × 6 — where does the decimal point go? (a) 0.0264 (b) 26.4 (c) 2.64 (d) 0.264
28. 28.0.37 × 0.9 — where does the decimal point go? (a) 0.333 (b) 0.0333 (c) 0.00333 (d) 3.33
29. 29.0.81 × 0.7 — where does the decimal point go? (a) 0.0567 (b) 0.567 (c) 0.00567 (d) 5.67
30. 30.0.26 × 3 — where does the decimal point go? (a) 0.078 (b) 0.0078 (c) 0.78 (d) 7.8
31. 31.0.66 × 1.2 — where does the decimal point go? (a) 7.92 (b) 0.00792 (c) 0.0792 (d) 0.792
32. 32.0.29 × 0.2 — where does the decimal point go? (a) 0.058 (b) 0.58 (c) 0.0058 (d) 0.00058
33. 33.2.9 × 18 — where does the decimal point go? (a) 0.522 (b) 5.22 (c) 52.2 (d) 522
34. 34.0.74 × 0.9 — where does the decimal point go? (a) 0.0666 (b) 6.66 (c) 0.00666 (d) 0.666
35. 35.9.4 × 7 — where does the decimal point go? (a) 658 (b) 65.8 (c) 0.658 (d) 6.58
36. 36.0.64 × 2 — where does the decimal point go? (a) 12.8 (b) 0.128 (c) 1.28 (d) 0.0128
37. 37.0.63 × 37 — where does the decimal point go? (a) 233.1 (b) 0.2331 (c) 23.31 (d) 2.331
38. 38.0.43 × 2 — where does the decimal point go? (a) 0.86 (b) 0.086 (c) 0.0086 (d) 8.6
39. 39.0.15 × 49 — where does the decimal point go? (a) 7.35 (b) 0.0735 (c) 73.5 (d) 0.735
40. 40.0.18 × 4 — where does the decimal point go? (a) 0.0072 (b) 0.72 (c) 0.072 (d) 7.2

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