Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 593 · 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. 1.9.7 × 0.5 — where does the decimal point go? (a) 0.0485 (b) 48.5 (c) 4.85 (d) 0.485
2. 2.8.1 × 9 — where does the decimal point go? (a) 0.729 (b) 72.9 (c) 7.29 (d) 729
3. 3.3.7 × 39 — where does the decimal point go? (a) 1.443 (b) 144.3 (c) 14.43 (d) 1443
4. 4.0.58 × 19 — where does the decimal point go? (a) 11.02 (b) 110.2 (c) 0.1102 (d) 1.102
5. 5.6.6 × 6 — where does the decimal point go? (a) 0.396 (b) 396 (c) 39.6 (d) 3.96
6. 6.3.6 × 0.4 — where does the decimal point go? (a) 14.4 (b) 0.0144 (c) 1.44 (d) 0.144
7. 7.0.43 × 15 — where does the decimal point go? (a) 6.45 (b) 64.5 (c) 0.0645 (d) 0.645
8. 8.1.6 × 0.8 — where does the decimal point go? (a) 12.8 (b) 0.128 (c) 0.0128 (d) 1.28
9. 9.0.46 × 4 — where does the decimal point go? (a) 18.4 (b) 0.184 (c) 0.0184 (d) 1.84
10. 10.9.9 × 26 — where does the decimal point go? (a) 257.4 (b) 2.574 (c) 25.74 (d) 2574
11. 11.0.61 × 9 — where does the decimal point go? (a) 0.0549 (b) 0.549 (c) 5.49 (d) 54.9
12. 12.2.2 × 0.2 — where does the decimal point go? (a) 0.044 (b) 0.0044 (c) 4.4 (d) 0.44
13. 13.5.9 × 3.9 — where does the decimal point go? (a) 230.1 (b) 0.2301 (c) 2.301 (d) 23.01
14. 14.1.2 × 2 — where does the decimal point go? (a) 0.024 (b) 24 (c) 0.24 (d) 2.4
15. 15.4.7 × 0.4 — where does the decimal point go? (a) 1.88 (b) 18.8 (c) 0.188 (d) 0.0188
16. 16.5.9 × 3 — where does the decimal point go? (a) 1.77 (b) 17.7 (c) 177 (d) 0.177
17. 17.0.82 × 9 — where does the decimal point go? (a) 0.0738 (b) 73.8 (c) 0.738 (d) 7.38
18. 18.9.4 × 9 — where does the decimal point go? (a) 0.846 (b) 8.46 (c) 846 (d) 84.6
19. 19.0.19 × 0.6 — where does the decimal point go? (a) 0.114 (b) 1.14 (c) 0.0114 (d) 0.00114
20. 20.7.7 × 12 — where does the decimal point go? (a) 92.4 (b) 9.24 (c) 924 (d) 0.924
21. 21.0.74 × 0.7 — where does the decimal point go? (a) 0.518 (b) 0.0518 (c) 0.00518 (d) 5.18
22. 22.5.8 × 8 — where does the decimal point go? (a) 4.64 (b) 46.4 (c) 464 (d) 0.464
23. 23.0.28 × 0.4 — where does the decimal point go? (a) 1.12 (b) 0.00112 (c) 0.112 (d) 0.0112
24. 24.0.79 × 5 — where does the decimal point go? (a) 0.395 (b) 39.5 (c) 0.0395 (d) 3.95
25. 25.6.7 × 9 — where does the decimal point go? (a) 6.03 (b) 603 (c) 60.3 (d) 0.603
26. 26.8.2 × 28 — where does the decimal point go? (a) 22.96 (b) 229.6 (c) 2296 (d) 2.296
27. 27.6.9 × 33 — where does the decimal point go? (a) 22.77 (b) 2.277 (c) 227.7 (d) 2277
28. 28.0.34 × 3 — where does the decimal point go? (a) 1.02 (b) 0.0102 (c) 0.102 (d) 10.2
29. 29.2.6 × 4.1 — where does the decimal point go? (a) 0.1066 (b) 10.66 (c) 1.066 (d) 106.6
30. 30.9.3 × 0.2 — where does the decimal point go? (a) 18.6 (b) 1.86 (c) 0.186 (d) 0.0186
31. 31.7.6 × 31 — where does the decimal point go? (a) 2356 (b) 235.6 (c) 2.356 (d) 23.56
32. 32.0.31 × 13 — where does the decimal point go? (a) 0.0403 (b) 0.403 (c) 4.03 (d) 40.3
33. 33.0.19 × 0.5 — where does the decimal point go? (a) 0.0095 (b) 0.95 (c) 0.095 (d) 0.00095
34. 34.0.77 × 2 — where does the decimal point go? (a) 1.54 (b) 15.4 (c) 0.0154 (d) 0.154
35. 35.0.24 × 0.2 — where does the decimal point go? (a) 0.0048 (b) 0.48 (c) 0.00048 (d) 0.048
36. 36.6.4 × 4 — where does the decimal point go? (a) 25.6 (b) 256 (c) 0.256 (d) 2.56
37. 37.0.22 × 14 — where does the decimal point go? (a) 30.8 (b) 3.08 (c) 0.0308 (d) 0.308
38. 38.2.5 × 1.7 — where does the decimal point go? (a) 42.5 (b) 0.425 (c) 0.0425 (d) 4.25
39. 39.6.7 × 2.7 — where does the decimal point go? (a) 1.809 (b) 180.9 (c) 0.1809 (d) 18.09
40. 40.0.21 × 1.9 — where does the decimal point go? (a) 0.0399 (b) 3.99 (c) 0.00399 (d) 0.399

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