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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 701 · 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. 1.0.13 × 8 — where does the decimal point go? (a) 0.104 (b) 10.4 (c) 0.0104 (d) 1.04
  2. 2.0.61 × 21 — where does the decimal point go? (a) 12.81 (b) 128.1 (c) 1.281 (d) 0.1281
  3. 3.6.1 × 0.5 — where does the decimal point go? (a) 0.305 (b) 0.0305 (c) 30.5 (d) 3.05
  4. 4.0.22 × 3 — where does the decimal point go? (a) 6.6 (b) 0.66 (c) 0.0066 (d) 0.066
  5. 5.0.49 × 8 — where does the decimal point go? (a) 0.0392 (b) 0.392 (c) 3.92 (d) 39.2
  6. 6.8.9 × 0.2 — where does the decimal point go? (a) 0.178 (b) 17.8 (c) 0.0178 (d) 1.78
  7. 7.0.12 × 3.9 — where does the decimal point go? (a) 4.68 (b) 0.0468 (c) 0.00468 (d) 0.468
  8. 8.7.4 × 3.4 — where does the decimal point go? (a) 25.16 (b) 2.516 (c) 0.2516 (d) 251.6
  9. 9.6.8 × 9 — where does the decimal point go? (a) 0.612 (b) 61.2 (c) 612 (d) 6.12
  10. 10.0.88 × 12 — where does the decimal point go? (a) 1.056 (b) 105.6 (c) 10.56 (d) 0.1056
  11. 11.7.7 × 0.8 — where does the decimal point go? (a) 61.6 (b) 0.0616 (c) 0.616 (d) 6.16
  12. 12.6.7 × 0.9 — where does the decimal point go? (a) 6.03 (b) 60.3 (c) 0.0603 (d) 0.603
  13. 13.0.33 × 0.9 — where does the decimal point go? (a) 2.97 (b) 0.297 (c) 0.0297 (d) 0.00297
  14. 14.0.37 × 4.8 — where does the decimal point go? (a) 1.776 (b) 17.76 (c) 0.1776 (d) 0.01776
  15. 15.4.9 × 2 — where does the decimal point go? (a) 9.8 (b) 0.98 (c) 0.098 (d) 98
  16. 16.6.4 × 7 — where does the decimal point go? (a) 4.48 (b) 0.448 (c) 44.8 (d) 448
  17. 17.0.88 × 7 — where does the decimal point go? (a) 6.16 (b) 0.0616 (c) 0.616 (d) 61.6
  18. 18.6.7 × 0.2 — where does the decimal point go? (a) 0.134 (b) 0.0134 (c) 1.34 (d) 13.4
  19. 19.0.28 × 0.6 — where does the decimal point go? (a) 0.168 (b) 0.00168 (c) 1.68 (d) 0.0168
  20. 20.0.27 × 1.3 — where does the decimal point go? (a) 0.351 (b) 0.0351 (c) 0.00351 (d) 3.51
  21. 21.3.8 × 0.7 — where does the decimal point go? (a) 0.266 (b) 0.0266 (c) 2.66 (d) 26.6
  22. 22.5.1 × 2.7 — where does the decimal point go? (a) 13.77 (b) 0.1377 (c) 1.377 (d) 137.7
  23. 23.0.79 × 2.9 — where does the decimal point go? (a) 2.291 (b) 0.02291 (c) 0.2291 (d) 22.91
  24. 24.0.72 × 48 — where does the decimal point go? (a) 345.6 (b) 0.3456 (c) 34.56 (d) 3.456
  25. 25.4.8 × 0.6 — where does the decimal point go? (a) 28.8 (b) 2.88 (c) 0.0288 (d) 0.288
  26. 26.0.49 × 0.6 — where does the decimal point go? (a) 0.294 (b) 2.94 (c) 0.0294 (d) 0.00294
  27. 27.1.9 × 22 — where does the decimal point go? (a) 4.18 (b) 418 (c) 41.8 (d) 0.418
  28. 28.0.14 × 7 — where does the decimal point go? (a) 0.98 (b) 9.8 (c) 0.0098 (d) 0.098
  29. 29.7.7 × 19 — where does the decimal point go? (a) 1463 (b) 1.463 (c) 146.3 (d) 14.63
  30. 30.0.93 × 19 — where does the decimal point go? (a) 176.7 (b) 0.1767 (c) 17.67 (d) 1.767
  31. 31.9.4 × 11 — where does the decimal point go? (a) 1.034 (b) 1034 (c) 10.34 (d) 103.4
  32. 32.2.8 × 19 — where does the decimal point go? (a) 5.32 (b) 532 (c) 0.532 (d) 53.2
  33. 33.0.89 × 3.9 — where does the decimal point go? (a) 0.3471 (b) 34.71 (c) 0.03471 (d) 3.471
  34. 34.3.5 × 41 — where does the decimal point go? (a) 14.35 (b) 1435 (c) 1.435 (d) 143.5
  35. 35.5.3 × 2.3 — where does the decimal point go? (a) 1.219 (b) 12.19 (c) 0.1219 (d) 121.9
  36. 36.0.76 × 4.2 — where does the decimal point go? (a) 0.03192 (b) 31.92 (c) 3.192 (d) 0.3192
  37. 37.2.2 × 6 — where does the decimal point go? (a) 1.32 (b) 0.132 (c) 132 (d) 13.2
  38. 38.8.3 × 1.8 — where does the decimal point go? (a) 0.1494 (b) 14.94 (c) 1.494 (d) 149.4
  39. 39.4.2 × 1.2 — where does the decimal point go? (a) 5.04 (b) 0.0504 (c) 50.4 (d) 0.504
  40. 40.0.81 × 15 — where does the decimal point go? (a) 1.215 (b) 12.15 (c) 121.5 (d) 0.1215

Answer key

  1. 1.04
  2. 12.81
  3. 3.05
  4. 0.66
  5. 3.92
  6. 1.78
  7. 0.468
  8. 25.16
  9. 61.2
  10. 10.56
  11. 6.16
  12. 6.03
  13. 0.297
  14. 1.776
  15. 9.8
  16. 44.8
  17. 6.16
  18. 1.34
  19. 0.168
  20. 0.351
  21. 2.66
  22. 13.77
  23. 2.291
  24. 34.56
  25. 2.88
  26. 0.294
  27. 41.8
  28. 0.98
  29. 146.3
  30. 17.67
  31. 103.4
  32. 53.2
  33. 3.471
  34. 143.5
  35. 12.19
  36. 3.192
  37. 13.2
  38. 14.94
  39. 5.04
  40. 12.15

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