Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 598 · 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. 1.0.56 × 2.1 — where does the decimal point go? (a) 0.1176 (b) 11.76 (c) 0.01176 (d) 1.176
2. 2.0.96 × 7 — where does the decimal point go? (a) 67.2 (b) 0.672 (c) 6.72 (d) 0.0672
3. 3.4.1 × 37 — where does the decimal point go? (a) 1.517 (b) 151.7 (c) 15.17 (d) 1517
4. 4.3.5 × 4.1 — where does the decimal point go? (a) 1.435 (b) 143.5 (c) 0.1435 (d) 14.35
5. 5.0.93 × 0.4 — where does the decimal point go? (a) 3.72 (b) 0.00372 (c) 0.372 (d) 0.0372
6. 6.0.75 × 45 — where does the decimal point go? (a) 33.75 (b) 0.3375 (c) 3.375 (d) 337.5
7. 7.0.77 × 0.9 — where does the decimal point go? (a) 0.693 (b) 0.0693 (c) 0.00693 (d) 6.93
8. 8.5.3 × 48 — where does the decimal point go? (a) 254.4 (b) 2.544 (c) 2544 (d) 25.44
9. 9.2.2 × 2.8 — where does the decimal point go? (a) 61.6 (b) 0.616 (c) 0.0616 (d) 6.16
10. 10.0.68 × 6 — where does the decimal point go? (a) 4.08 (b) 0.0408 (c) 40.8 (d) 0.408
11. 11.0.34 × 0.2 — where does the decimal point go? (a) 0.68 (b) 0.0068 (c) 0.068 (d) 0.00068
12. 12.0.51 × 1.6 — where does the decimal point go? (a) 0.816 (b) 8.16 (c) 0.0816 (d) 0.00816
13. 13.2.3 × 1.3 — where does the decimal point go? (a) 29.9 (b) 0.299 (c) 2.99 (d) 0.0299
14. 14.0.62 × 0.4 — where does the decimal point go? (a) 0.00248 (b) 0.248 (c) 2.48 (d) 0.0248
15. 15.0.45 × 0.7 — where does the decimal point go? (a) 0.315 (b) 3.15 (c) 0.00315 (d) 0.0315
16. 16.0.85 × 5 — where does the decimal point go? (a) 0.0425 (b) 0.425 (c) 42.5 (d) 4.25
17. 17.0.13 × 39 — where does the decimal point go? (a) 5.07 (b) 0.0507 (c) 0.507 (d) 50.7
18. 18.3.6 × 3.3 — where does the decimal point go? (a) 0.1188 (b) 118.8 (c) 11.88 (d) 1.188
19. 19.0.66 × 7 — where does the decimal point go? (a) 0.0462 (b) 4.62 (c) 0.462 (d) 46.2
20. 20.0.32 × 37 — where does the decimal point go? (a) 0.1184 (b) 11.84 (c) 118.4 (d) 1.184
21. 21.5.6 × 19 — where does the decimal point go? (a) 1.064 (b) 10.64 (c) 106.4 (d) 1064
22. 22.7.9 × 0.2 — where does the decimal point go? (a) 1.58 (b) 0.0158 (c) 0.158 (d) 15.8
23. 23.2.2 × 0.7 — where does the decimal point go? (a) 1.54 (b) 15.4 (c) 0.0154 (d) 0.154
24. 24.0.46 × 0.4 — where does the decimal point go? (a) 0.0184 (b) 0.00184 (c) 0.184 (d) 1.84
25. 25.1.4 × 1.2 — where does the decimal point go? (a) 0.0168 (b) 0.168 (c) 16.8 (d) 1.68
26. 26.3.1 × 8 — where does the decimal point go? (a) 24.8 (b) 2.48 (c) 248 (d) 0.248
27. 27.0.52 × 13 — where does the decimal point go? (a) 67.6 (b) 6.76 (c) 0.0676 (d) 0.676
28. 28.0.66 × 1.9 — where does the decimal point go? (a) 12.54 (b) 0.01254 (c) 1.254 (d) 0.1254
29. 29.0.28 × 22 — where does the decimal point go? (a) 0.616 (b) 0.0616 (c) 61.6 (d) 6.16
30. 30.2.8 × 1.9 — where does the decimal point go? (a) 0.532 (b) 0.0532 (c) 5.32 (d) 53.2
31. 31.3.8 × 6 — where does the decimal point go? (a) 0.228 (b) 2.28 (c) 22.8 (d) 228
32. 32.0.29 × 13 — where does the decimal point go? (a) 0.0377 (b) 0.377 (c) 37.7 (d) 3.77
33. 33.9.2 × 4.2 — where does the decimal point go? (a) 0.3864 (b) 386.4 (c) 3.864 (d) 38.64
34. 34.0.76 × 23 — where does the decimal point go? (a) 174.8 (b) 17.48 (c) 0.1748 (d) 1.748
35. 35.2.8 × 4.4 — where does the decimal point go? (a) 0.1232 (b) 123.2 (c) 12.32 (d) 1.232
36. 36.0.75 × 7 — where does the decimal point go? (a) 5.25 (b) 0.0525 (c) 0.525 (d) 52.5
37. 37.7.2 × 1.6 — where does the decimal point go? (a) 115.2 (b) 1.152 (c) 11.52 (d) 0.1152
38. 38.0.36 × 2.9 — where does the decimal point go? (a) 0.1044 (b) 1.044 (c) 0.01044 (d) 10.44
39. 39.2.6 × 9 — where does the decimal point go? (a) 23.4 (b) 2.34 (c) 0.234 (d) 234
40. 40.2.2 × 0.2 — where does the decimal point go? (a) 0.0044 (b) 4.4 (c) 0.044 (d) 0.44

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