Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 677 · 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. 1.2.3 × 33 — where does the decimal point go? (a) 7.59 (b) 759 (c) 75.9 (d) 0.759
2. 2.0.75 × 5 — where does the decimal point go? (a) 0.375 (b) 0.0375 (c) 37.5 (d) 3.75
3. 3.9.6 × 31 — where does the decimal point go? (a) 29.76 (b) 2.976 (c) 297.6 (d) 2976
4. 4.3.6 × 0.9 — where does the decimal point go? (a) 0.324 (b) 0.0324 (c) 3.24 (d) 32.4
5. 5.0.99 × 35 — where does the decimal point go? (a) 346.5 (b) 34.65 (c) 3.465 (d) 0.3465
6. 6.9.6 × 16 — where does the decimal point go? (a) 1536 (b) 1.536 (c) 153.6 (d) 15.36
7. 7.3.9 × 15 — where does the decimal point go? (a) 58.5 (b) 0.585 (c) 5.85 (d) 585
8. 8.1.4 × 4.2 — where does the decimal point go? (a) 5.88 (b) 0.588 (c) 0.0588 (d) 58.8
9. 9.0.33 × 44 — where does the decimal point go? (a) 145.2 (b) 14.52 (c) 1.452 (d) 0.1452
10. 10.0.93 × 37 — where does the decimal point go? (a) 34.41 (b) 344.1 (c) 3.441 (d) 0.3441
11. 11.0.87 × 3 — where does the decimal point go? (a) 0.0261 (b) 2.61 (c) 26.1 (d) 0.261
12. 12.0.55 × 4.9 — where does the decimal point go? (a) 0.2695 (b) 0.02695 (c) 2.695 (d) 26.95
13. 13.8.9 × 27 — where does the decimal point go? (a) 24.03 (b) 2.403 (c) 2403 (d) 240.3
14. 14.0.21 × 4.5 — where does the decimal point go? (a) 9.45 (b) 0.00945 (c) 0.0945 (d) 0.945
15. 15.4.7 × 0.3 — where does the decimal point go? (a) 1.41 (b) 0.141 (c) 0.0141 (d) 14.1
16. 16.0.43 × 4.2 — where does the decimal point go? (a) 18.06 (b) 1.806 (c) 0.01806 (d) 0.1806
17. 17.0.16 × 2.7 — where does the decimal point go? (a) 0.432 (b) 0.00432 (c) 0.0432 (d) 4.32
18. 18.0.28 × 38 — where does the decimal point go? (a) 0.1064 (b) 106.4 (c) 10.64 (d) 1.064
19. 19.9.1 × 4 — where does the decimal point go? (a) 3.64 (b) 0.364 (c) 364 (d) 36.4
20. 20.0.76 × 0.3 — where does the decimal point go? (a) 0.00228 (b) 2.28 (c) 0.0228 (d) 0.228
21. 21.8.1 × 3.1 — where does the decimal point go? (a) 0.2511 (b) 251.1 (c) 2.511 (d) 25.11
22. 22.0.19 × 1.5 — where does the decimal point go? (a) 2.85 (b) 0.0285 (c) 0.00285 (d) 0.285
23. 23.0.77 × 3.9 — where does the decimal point go? (a) 0.03003 (b) 3.003 (c) 30.03 (d) 0.3003
24. 24.7.9 × 2.3 — where does the decimal point go? (a) 0.1817 (b) 181.7 (c) 1.817 (d) 18.17
25. 25.0.19 × 0.2 — where does the decimal point go? (a) 0.038 (b) 0.0038 (c) 0.00038 (d) 0.38
26. 26.0.14 × 0.3 — where does the decimal point go? (a) 0.042 (b) 0.0042 (c) 0.42 (d) 0.00042
27. 27.3.6 × 2 — where does the decimal point go? (a) 7.2 (b) 72 (c) 0.72 (d) 0.072
28. 28.5.5 × 45 — where does the decimal point go? (a) 247.5 (b) 2475 (c) 2.475 (d) 24.75
29. 29.0.98 × 4.2 — where does the decimal point go? (a) 41.16 (b) 0.4116 (c) 0.04116 (d) 4.116
30. 30.6.4 × 1.2 — where does the decimal point go? (a) 0.768 (b) 7.68 (c) 0.0768 (d) 76.8
31. 31.0.47 × 4 — where does the decimal point go? (a) 0.0188 (b) 0.188 (c) 18.8 (d) 1.88
32. 32.5.7 × 1.5 — where does the decimal point go? (a) 8.55 (b) 0.0855 (c) 0.855 (d) 85.5
33. 33.4.4 × 0.3 — where does the decimal point go? (a) 1.32 (b) 0.132 (c) 0.0132 (d) 13.2
34. 34.0.17 × 5 — where does the decimal point go? (a) 0.085 (b) 0.0085 (c) 0.85 (d) 8.5
35. 35.9.6 × 44 — where does the decimal point go? (a) 4.224 (b) 422.4 (c) 42.24 (d) 4224
36. 36.1.3 × 3.6 — where does the decimal point go? (a) 46.8 (b) 0.0468 (c) 4.68 (d) 0.468
37. 37.3.6 × 9 — where does the decimal point go? (a) 3.24 (b) 0.324 (c) 324 (d) 32.4
38. 38.0.93 × 0.3 — where does the decimal point go? (a) 0.00279 (b) 0.279 (c) 2.79 (d) 0.0279
39. 39.2.6 × 0.9 — where does the decimal point go? (a) 23.4 (b) 2.34 (c) 0.234 (d) 0.0234
40. 40.0.87 × 34 — where does the decimal point go? (a) 29.58 (b) 2.958 (c) 0.2958 (d) 295.8

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