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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 510 · 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. 1.2.9 × 0.4 — where does the decimal point go? (a) 0.116 (b) 0.0116 (c) 1.16 (d) 11.6
  2. 2.2.1 × 1.3 — where does the decimal point go? (a) 2.73 (b) 0.273 (c) 0.0273 (d) 27.3
  3. 3.0.15 × 7 — where does the decimal point go? (a) 1.05 (b) 0.105 (c) 0.0105 (d) 10.5
  4. 4.0.44 × 0.6 — where does the decimal point go? (a) 0.0264 (b) 0.264 (c) 0.00264 (d) 2.64
  5. 5.0.98 × 0.4 — where does the decimal point go? (a) 0.00392 (b) 3.92 (c) 0.392 (d) 0.0392
  6. 6.0.26 × 9 — where does the decimal point go? (a) 23.4 (b) 2.34 (c) 0.0234 (d) 0.234
  7. 7.0.28 × 0.6 — where does the decimal point go? (a) 0.00168 (b) 0.0168 (c) 0.168 (d) 1.68
  8. 8.0.36 × 0.6 — where does the decimal point go? (a) 0.00216 (b) 0.216 (c) 2.16 (d) 0.0216
  9. 9.0.82 × 0.9 — where does the decimal point go? (a) 7.38 (b) 0.00738 (c) 0.738 (d) 0.0738
  10. 10.0.93 × 1.2 — where does the decimal point go? (a) 1.116 (b) 0.1116 (c) 0.01116 (d) 11.16
  11. 11.0.28 × 2 — where does the decimal point go? (a) 0.56 (b) 0.056 (c) 0.0056 (d) 5.6
  12. 12.9.7 × 0.8 — where does the decimal point go? (a) 7.76 (b) 77.6 (c) 0.776 (d) 0.0776
  13. 13.0.21 × 13 — where does the decimal point go? (a) 0.0273 (b) 27.3 (c) 2.73 (d) 0.273
  14. 14.0.53 × 1.3 — where does the decimal point go? (a) 0.689 (b) 0.00689 (c) 6.89 (d) 0.0689
  15. 15.0.63 × 4 — where does the decimal point go? (a) 25.2 (b) 0.252 (c) 0.0252 (d) 2.52
  16. 16.4.1 × 21 — where does the decimal point go? (a) 0.861 (b) 86.1 (c) 8.61 (d) 861
  17. 17.3.9 × 8 — where does the decimal point go? (a) 312 (b) 3.12 (c) 0.312 (d) 31.2
  18. 18.7.7 × 0.4 — where does the decimal point go? (a) 30.8 (b) 0.0308 (c) 3.08 (d) 0.308
  19. 19.0.23 × 0.4 — where does the decimal point go? (a) 0.00092 (b) 0.092 (c) 0.92 (d) 0.0092
  20. 20.7.1 × 22 — where does the decimal point go? (a) 15.62 (b) 156.2 (c) 1.562 (d) 1562
  21. 21.0.92 × 34 — where does the decimal point go? (a) 0.3128 (b) 3.128 (c) 312.8 (d) 31.28
  22. 22.0.45 × 0.7 — where does the decimal point go? (a) 3.15 (b) 0.00315 (c) 0.0315 (d) 0.315
  23. 23.0.51 × 38 — where does the decimal point go? (a) 193.8 (b) 0.1938 (c) 1.938 (d) 19.38
  24. 24.5.2 × 0.6 — where does the decimal point go? (a) 3.12 (b) 0.312 (c) 31.2 (d) 0.0312
  25. 25.0.69 × 9 — where does the decimal point go? (a) 6.21 (b) 0.0621 (c) 0.621 (d) 62.1
  26. 26.6.6 × 33 — where does the decimal point go? (a) 21.78 (b) 2178 (c) 217.8 (d) 2.178
  27. 27.3.1 × 0.2 — where does the decimal point go? (a) 6.2 (b) 0.0062 (c) 0.62 (d) 0.062
  28. 28.7.2 × 4 — where does the decimal point go? (a) 2.88 (b) 28.8 (c) 0.288 (d) 288
  29. 29.0.25 × 43 — where does the decimal point go? (a) 107.5 (b) 10.75 (c) 0.1075 (d) 1.075
  30. 30.6.3 × 9 — where does the decimal point go? (a) 0.567 (b) 56.7 (c) 5.67 (d) 567
  31. 31.0.27 × 0.2 — where does the decimal point go? (a) 0.54 (b) 0.00054 (c) 0.054 (d) 0.0054
  32. 32.5.4 × 0.7 — where does the decimal point go? (a) 0.0378 (b) 0.378 (c) 3.78 (d) 37.8
  33. 33.9.1 × 9 — where does the decimal point go? (a) 819 (b) 8.19 (c) 81.9 (d) 0.819
  34. 34.3.2 × 4.7 — where does the decimal point go? (a) 15.04 (b) 150.4 (c) 1.504 (d) 0.1504
  35. 35.0.54 × 0.6 — where does the decimal point go? (a) 0.0324 (b) 0.00324 (c) 3.24 (d) 0.324
  36. 36.0.18 × 49 — where does the decimal point go? (a) 8.82 (b) 0.0882 (c) 0.882 (d) 88.2
  37. 37.9.9 × 0.3 — where does the decimal point go? (a) 2.97 (b) 29.7 (c) 0.0297 (d) 0.297
  38. 38.0.98 × 0.6 — where does the decimal point go? (a) 0.0588 (b) 0.588 (c) 5.88 (d) 0.00588
  39. 39.7.3 × 8 — where does the decimal point go? (a) 584 (b) 0.584 (c) 58.4 (d) 5.84
  40. 40.5.3 × 0.3 — where does the decimal point go? (a) 0.0159 (b) 15.9 (c) 0.159 (d) 1.59

Answer key

  1. 1.16
  2. 2.73
  3. 1.05
  4. 0.264
  5. 0.392
  6. 2.34
  7. 0.168
  8. 0.216
  9. 0.738
  10. 1.116
  11. 0.56
  12. 7.76
  13. 2.73
  14. 0.689
  15. 2.52
  16. 86.1
  17. 31.2
  18. 3.08
  19. 0.092
  20. 156.2
  21. 31.28
  22. 0.315
  23. 19.38
  24. 3.12
  25. 6.21
  26. 217.8
  27. 0.62
  28. 28.8
  29. 10.75
  30. 56.7
  31. 0.054
  32. 3.78
  33. 81.9
  34. 15.04
  35. 0.324
  36. 8.82
  37. 2.97
  38. 0.588
  39. 58.4
  40. 1.59

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