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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 574 · 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. 1.0.32 × 0.8 — where does the decimal point go? (a) 2.56 (b) 0.0256 (c) 0.00256 (d) 0.256
  2. 2.1.4 × 0.6 — where does the decimal point go? (a) 0.084 (b) 0.0084 (c) 0.84 (d) 8.4
  3. 3.7.1 × 0.4 — where does the decimal point go? (a) 0.284 (b) 28.4 (c) 0.0284 (d) 2.84
  4. 4.0.71 × 4 — where does the decimal point go? (a) 0.0284 (b) 28.4 (c) 0.284 (d) 2.84
  5. 5.9.3 × 4.9 — where does the decimal point go? (a) 45.57 (b) 4.557 (c) 455.7 (d) 0.4557
  6. 6.0.52 × 21 — where does the decimal point go? (a) 1.092 (b) 10.92 (c) 109.2 (d) 0.1092
  7. 7.9.9 × 3.9 — where does the decimal point go? (a) 38.61 (b) 386.1 (c) 3.861 (d) 0.3861
  8. 8.5.4 × 8 — where does the decimal point go? (a) 0.432 (b) 43.2 (c) 4.32 (d) 432
  9. 9.0.83 × 17 — where does the decimal point go? (a) 14.11 (b) 1.411 (c) 0.1411 (d) 141.1
  10. 10.0.76 × 36 — where does the decimal point go? (a) 0.2736 (b) 2.736 (c) 273.6 (d) 27.36
  11. 11.7.8 × 4 — where does the decimal point go? (a) 0.312 (b) 3.12 (c) 31.2 (d) 312
  12. 12.8.9 × 4.1 — where does the decimal point go? (a) 364.9 (b) 3.649 (c) 36.49 (d) 0.3649
  13. 13.7.8 × 1.2 — where does the decimal point go? (a) 9.36 (b) 0.0936 (c) 0.936 (d) 93.6
  14. 14.0.92 × 4.1 — where does the decimal point go? (a) 3.772 (b) 0.03772 (c) 0.3772 (d) 37.72
  15. 15.0.64 × 9 — where does the decimal point go? (a) 0.576 (b) 57.6 (c) 5.76 (d) 0.0576
  16. 16.0.78 × 3.9 — where does the decimal point go? (a) 3.042 (b) 0.3042 (c) 0.03042 (d) 30.42
  17. 17.6.8 × 1.6 — where does the decimal point go? (a) 1.088 (b) 10.88 (c) 108.8 (d) 0.1088
  18. 18.5.8 × 0.7 — where does the decimal point go? (a) 0.406 (b) 4.06 (c) 0.0406 (d) 40.6
  19. 19.0.24 × 0.2 — where does the decimal point go? (a) 0.0048 (b) 0.00048 (c) 0.048 (d) 0.48
  20. 20.9.6 × 0.9 — where does the decimal point go? (a) 8.64 (b) 0.0864 (c) 86.4 (d) 0.864
  21. 21.0.13 × 4.2 — where does the decimal point go? (a) 0.0546 (b) 5.46 (c) 0.00546 (d) 0.546
  22. 22.4.1 × 35 — where does the decimal point go? (a) 14.35 (b) 143.5 (c) 1.435 (d) 1435
  23. 23.0.24 × 1.7 — where does the decimal point go? (a) 0.0408 (b) 0.408 (c) 4.08 (d) 0.00408
  24. 24.9.7 × 3.2 — where does the decimal point go? (a) 31.04 (b) 3.104 (c) 310.4 (d) 0.3104
  25. 25.0.98 × 2 — where does the decimal point go? (a) 0.196 (b) 1.96 (c) 0.0196 (d) 19.6
  26. 26.0.88 × 3.6 — where does the decimal point go? (a) 3.168 (b) 0.3168 (c) 0.03168 (d) 31.68
  27. 27.0.73 × 45 — where does the decimal point go? (a) 32.85 (b) 0.3285 (c) 3.285 (d) 328.5
  28. 28.7.4 × 8 — where does the decimal point go? (a) 592 (b) 5.92 (c) 59.2 (d) 0.592
  29. 29.0.26 × 0.9 — where does the decimal point go? (a) 0.0234 (b) 0.234 (c) 0.00234 (d) 2.34
  30. 30.2.7 × 8 — where does the decimal point go? (a) 21.6 (b) 216 (c) 0.216 (d) 2.16
  31. 31.3.4 × 3.9 — where does the decimal point go? (a) 13.26 (b) 0.1326 (c) 132.6 (d) 1.326
  32. 32.4.2 × 3.8 — where does the decimal point go? (a) 1.596 (b) 15.96 (c) 0.1596 (d) 159.6
  33. 33.7.9 × 0.3 — where does the decimal point go? (a) 23.7 (b) 0.0237 (c) 2.37 (d) 0.237
  34. 34.1.3 × 46 — where does the decimal point go? (a) 0.598 (b) 59.8 (c) 598 (d) 5.98
  35. 35.0.97 × 0.8 — where does the decimal point go? (a) 0.00776 (b) 0.776 (c) 7.76 (d) 0.0776
  36. 36.2.9 × 4 — where does the decimal point go? (a) 11.6 (b) 0.116 (c) 1.16 (d) 116
  37. 37.9.4 × 6 — where does the decimal point go? (a) 564 (b) 5.64 (c) 56.4 (d) 0.564
  38. 38.3.3 × 0.4 — where does the decimal point go? (a) 1.32 (b) 0.0132 (c) 13.2 (d) 0.132
  39. 39.5.3 × 37 — where does the decimal point go? (a) 19.61 (b) 1961 (c) 1.961 (d) 196.1
  40. 40.0.77 × 3 — where does the decimal point go? (a) 0.231 (b) 2.31 (c) 0.0231 (d) 23.1

Answer key

  1. 0.256
  2. 0.84
  3. 2.84
  4. 2.84
  5. 45.57
  6. 10.92
  7. 38.61
  8. 43.2
  9. 14.11
  10. 27.36
  11. 31.2
  12. 36.49
  13. 9.36
  14. 3.772
  15. 5.76
  16. 3.042
  17. 10.88
  18. 4.06
  19. 0.048
  20. 8.64
  21. 0.546
  22. 143.5
  23. 0.408
  24. 31.04
  25. 1.96
  26. 3.168
  27. 32.85
  28. 59.2
  29. 0.234
  30. 21.6
  31. 13.26
  32. 15.96
  33. 2.37
  34. 59.8
  35. 0.776
  36. 11.6
  37. 56.4
  38. 1.32
  39. 196.1
  40. 2.31

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