← Where does the decimal point go? lesson New set →

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 713 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.1.7 × 1.5 — where does the decimal point go? (a) 0.255 (b) 25.5 (c) 0.0255 (d) 2.55
  2. 2.6.8 × 6 — where does the decimal point go? (a) 4.08 (b) 0.408 (c) 408 (d) 40.8
  3. 3.0.26 × 0.9 — where does the decimal point go? (a) 0.234 (b) 0.0234 (c) 0.00234 (d) 2.34
  4. 4.0.68 × 31 — where does the decimal point go? (a) 21.08 (b) 210.8 (c) 0.2108 (d) 2.108
  5. 5.3.1 × 0.3 — where does the decimal point go? (a) 0.0093 (b) 0.93 (c) 9.3 (d) 0.093
  6. 6.2.1 × 16 — where does the decimal point go? (a) 336 (b) 33.6 (c) 3.36 (d) 0.336
  7. 7.6.9 × 4.9 — where does the decimal point go? (a) 338.1 (b) 3.381 (c) 0.3381 (d) 33.81
  8. 8.0.86 × 9 — where does the decimal point go? (a) 0.774 (b) 7.74 (c) 0.0774 (d) 77.4
  9. 9.8.8 × 12 — where does the decimal point go? (a) 1.056 (b) 105.6 (c) 10.56 (d) 1056
  10. 10.0.69 × 18 — where does the decimal point go? (a) 1.242 (b) 124.2 (c) 12.42 (d) 0.1242
  11. 11.1.7 × 0.3 — where does the decimal point go? (a) 0.51 (b) 0.051 (c) 0.0051 (d) 5.1
  12. 12.0.76 × 22 — where does the decimal point go? (a) 1.672 (b) 0.1672 (c) 167.2 (d) 16.72
  13. 13.0.22 × 8 — where does the decimal point go? (a) 0.0176 (b) 0.176 (c) 17.6 (d) 1.76
  14. 14.6.2 × 29 — where does the decimal point go? (a) 1798 (b) 179.8 (c) 17.98 (d) 1.798
  15. 15.0.23 × 9 — where does the decimal point go? (a) 0.0207 (b) 0.207 (c) 20.7 (d) 2.07
  16. 16.8.1 × 0.8 — where does the decimal point go? (a) 0.0648 (b) 64.8 (c) 0.648 (d) 6.48
  17. 17.8.5 × 27 — where does the decimal point go? (a) 2.295 (b) 22.95 (c) 229.5 (d) 2295
  18. 18.0.39 × 0.3 — where does the decimal point go? (a) 1.17 (b) 0.117 (c) 0.0117 (d) 0.00117
  19. 19.1.4 × 3.9 — where does the decimal point go? (a) 54.6 (b) 0.0546 (c) 5.46 (d) 0.546
  20. 20.0.96 × 4.1 — where does the decimal point go? (a) 0.03936 (b) 3.936 (c) 0.3936 (d) 39.36
  21. 21.0.72 × 36 — where does the decimal point go? (a) 2.592 (b) 25.92 (c) 259.2 (d) 0.2592
  22. 22.0.62 × 0.6 — where does the decimal point go? (a) 0.0372 (b) 0.372 (c) 0.00372 (d) 3.72
  23. 23.0.16 × 0.3 — where does the decimal point go? (a) 0.48 (b) 0.00048 (c) 0.0048 (d) 0.048
  24. 24.3.4 × 2 — where does the decimal point go? (a) 6.8 (b) 0.068 (c) 0.68 (d) 68
  25. 25.7.9 × 0.8 — where does the decimal point go? (a) 63.2 (b) 0.0632 (c) 0.632 (d) 6.32
  26. 26.5.1 × 0.9 — where does the decimal point go? (a) 0.459 (b) 0.0459 (c) 45.9 (d) 4.59
  27. 27.0.31 × 0.9 — where does the decimal point go? (a) 0.0279 (b) 2.79 (c) 0.00279 (d) 0.279
  28. 28.0.82 × 2.2 — where does the decimal point go? (a) 0.1804 (b) 18.04 (c) 0.01804 (d) 1.804
  29. 29.1.8 × 44 — where does the decimal point go? (a) 79.2 (b) 792 (c) 0.792 (d) 7.92
  30. 30.3.6 × 1.2 — where does the decimal point go? (a) 0.432 (b) 4.32 (c) 43.2 (d) 0.0432
  31. 31.0.26 × 19 — where does the decimal point go? (a) 4.94 (b) 49.4 (c) 0.494 (d) 0.0494
  32. 32.5.7 × 6 — where does the decimal point go? (a) 0.342 (b) 34.2 (c) 3.42 (d) 342
  33. 33.0.78 × 4 — where does the decimal point go? (a) 31.2 (b) 3.12 (c) 0.0312 (d) 0.312
  34. 34.0.98 × 7 — where does the decimal point go? (a) 0.0686 (b) 68.6 (c) 6.86 (d) 0.686
  35. 35.9.7 × 31 — where does the decimal point go? (a) 300.7 (b) 3.007 (c) 30.07 (d) 3007
  36. 36.5.9 × 16 — where does the decimal point go? (a) 9.44 (b) 944 (c) 94.4 (d) 0.944
  37. 37.0.46 × 7 — where does the decimal point go? (a) 3.22 (b) 32.2 (c) 0.322 (d) 0.0322
  38. 38.9.7 × 9 — where does the decimal point go? (a) 873 (b) 87.3 (c) 0.873 (d) 8.73
  39. 39.0.83 × 6 — where does the decimal point go? (a) 4.98 (b) 49.8 (c) 0.498 (d) 0.0498
  40. 40.7.9 × 24 — where does the decimal point go? (a) 1.896 (b) 189.6 (c) 18.96 (d) 1896

Answer key

  1. 2.55
  2. 40.8
  3. 0.234
  4. 21.08
  5. 0.93
  6. 33.6
  7. 33.81
  8. 7.74
  9. 105.6
  10. 12.42
  11. 0.51
  12. 16.72
  13. 1.76
  14. 179.8
  15. 2.07
  16. 6.48
  17. 229.5
  18. 0.117
  19. 5.46
  20. 3.936
  21. 25.92
  22. 0.372
  23. 0.048
  24. 6.8
  25. 6.32
  26. 4.59
  27. 0.279
  28. 1.804
  29. 79.2
  30. 4.32
  31. 4.94
  32. 34.2
  33. 3.12
  34. 6.86
  35. 300.7
  36. 94.4
  37. 3.22
  38. 87.3
  39. 4.98
  40. 189.6

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks