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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 679 · 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. 1.8.9 × 0.2 — where does the decimal point go? (a) 0.178 (b) 1.78 (c) 0.0178 (d) 17.8
  2. 2.0.32 × 6 — where does the decimal point go? (a) 19.2 (b) 0.0192 (c) 0.192 (d) 1.92
  3. 3.0.85 × 0.5 — where does the decimal point go? (a) 0.425 (b) 0.0425 (c) 4.25 (d) 0.00425
  4. 4.9.2 × 2.6 — where does the decimal point go? (a) 2.392 (b) 0.2392 (c) 23.92 (d) 239.2
  5. 5.2.2 × 0.6 — where does the decimal point go? (a) 0.0132 (b) 13.2 (c) 1.32 (d) 0.132
  6. 6.0.88 × 4 — where does the decimal point go? (a) 0.352 (b) 35.2 (c) 3.52 (d) 0.0352
  7. 7.3.4 × 11 — where does the decimal point go? (a) 374 (b) 0.374 (c) 3.74 (d) 37.4
  8. 8.0.79 × 1.9 — where does the decimal point go? (a) 1.501 (b) 0.01501 (c) 0.1501 (d) 15.01
  9. 9.5.6 × 0.4 — where does the decimal point go? (a) 2.24 (b) 0.224 (c) 22.4 (d) 0.0224
  10. 10.0.86 × 19 — where does the decimal point go? (a) 16.34 (b) 0.1634 (c) 163.4 (d) 1.634
  11. 11.0.13 × 4.2 — where does the decimal point go? (a) 0.546 (b) 5.46 (c) 0.0546 (d) 0.00546
  12. 12.9.9 × 0.8 — where does the decimal point go? (a) 7.92 (b) 0.0792 (c) 0.792 (d) 79.2
  13. 13.0.93 × 0.5 — where does the decimal point go? (a) 0.465 (b) 0.00465 (c) 0.0465 (d) 4.65
  14. 14.0.29 × 6 — where does the decimal point go? (a) 0.0174 (b) 0.174 (c) 17.4 (d) 1.74
  15. 15.0.25 × 3 — where does the decimal point go? (a) 0.075 (b) 0.75 (c) 7.5 (d) 0.0075
  16. 16.8.1 × 0.3 — where does the decimal point go? (a) 2.43 (b) 0.0243 (c) 0.243 (d) 24.3
  17. 17.0.38 × 48 — where does the decimal point go? (a) 182.4 (b) 0.1824 (c) 1.824 (d) 18.24
  18. 18.6.5 × 3 — where does the decimal point go? (a) 1.95 (b) 0.195 (c) 19.5 (d) 195
  19. 19.0.18 × 0.4 — where does the decimal point go? (a) 0.72 (b) 0.0072 (c) 0.00072 (d) 0.072
  20. 20.4.1 × 8 — where does the decimal point go? (a) 0.328 (b) 3.28 (c) 328 (d) 32.8
  21. 21.9.9 × 0.2 — where does the decimal point go? (a) 0.0198 (b) 19.8 (c) 1.98 (d) 0.198
  22. 22.2.1 × 1.1 — where does the decimal point go? (a) 0.231 (b) 23.1 (c) 2.31 (d) 0.0231
  23. 23.2.8 × 0.6 — where does the decimal point go? (a) 0.168 (b) 16.8 (c) 0.0168 (d) 1.68
  24. 24.2.3 × 4 — where does the decimal point go? (a) 0.092 (b) 92 (c) 0.92 (d) 9.2
  25. 25.8.9 × 4 — where does the decimal point go? (a) 3.56 (b) 35.6 (c) 356 (d) 0.356
  26. 26.9.6 × 49 — where does the decimal point go? (a) 4.704 (b) 4704 (c) 47.04 (d) 470.4
  27. 27.0.51 × 28 — where does the decimal point go? (a) 0.1428 (b) 1.428 (c) 142.8 (d) 14.28
  28. 28.0.14 × 0.8 — where does the decimal point go? (a) 0.0112 (b) 0.00112 (c) 1.12 (d) 0.112
  29. 29.0.88 × 1.8 — where does the decimal point go? (a) 0.1584 (b) 1.584 (c) 0.01584 (d) 15.84
  30. 30.8.7 × 3.1 — where does the decimal point go? (a) 0.2697 (b) 26.97 (c) 2.697 (d) 269.7
  31. 31.0.51 × 4 — where does the decimal point go? (a) 0.204 (b) 20.4 (c) 2.04 (d) 0.0204
  32. 32.2.3 × 16 — where does the decimal point go? (a) 36.8 (b) 3.68 (c) 0.368 (d) 368
  33. 33.0.74 × 11 — where does the decimal point go? (a) 0.0814 (b) 0.814 (c) 81.4 (d) 8.14
  34. 34.0.36 × 3 — where does the decimal point go? (a) 10.8 (b) 0.108 (c) 1.08 (d) 0.0108
  35. 35.0.96 × 2.8 — where does the decimal point go? (a) 26.88 (b) 2.688 (c) 0.2688 (d) 0.02688
  36. 36.0.72 × 7 — where does the decimal point go? (a) 0.0504 (b) 50.4 (c) 0.504 (d) 5.04
  37. 37.5.6 × 6 — where does the decimal point go? (a) 0.336 (b) 336 (c) 3.36 (d) 33.6
  38. 38.0.91 × 2.2 — where does the decimal point go? (a) 0.02002 (b) 2.002 (c) 20.02 (d) 0.2002
  39. 39.0.12 × 4 — where does the decimal point go? (a) 0.0048 (b) 4.8 (c) 0.48 (d) 0.048
  40. 40.3.8 × 4.8 — where does the decimal point go? (a) 1.824 (b) 182.4 (c) 18.24 (d) 0.1824

Answer key

  1. 1.78
  2. 1.92
  3. 0.425
  4. 23.92
  5. 1.32
  6. 3.52
  7. 37.4
  8. 1.501
  9. 2.24
  10. 16.34
  11. 0.546
  12. 7.92
  13. 0.465
  14. 1.74
  15. 0.75
  16. 2.43
  17. 18.24
  18. 19.5
  19. 0.072
  20. 32.8
  21. 1.98
  22. 2.31
  23. 1.68
  24. 9.2
  25. 35.6
  26. 470.4
  27. 14.28
  28. 0.112
  29. 1.584
  30. 26.97
  31. 2.04
  32. 36.8
  33. 8.14
  34. 1.08
  35. 2.688
  36. 5.04
  37. 33.6
  38. 2.002
  39. 0.48
  40. 18.24

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