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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 378 · 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. 1.1.3 × 21 — where does the decimal point go? (a) 27.3 (b) 0.273 (c) 273 (d) 2.73
  2. 2.0.13 × 8 — where does the decimal point go? (a) 0.104 (b) 1.04 (c) 0.0104 (d) 10.4
  3. 3.0.97 × 3 — where does the decimal point go? (a) 29.1 (b) 0.291 (c) 0.0291 (d) 2.91
  4. 4.0.49 × 2 — where does the decimal point go? (a) 0.0098 (b) 9.8 (c) 0.098 (d) 0.98
  5. 5.0.35 × 7 — where does the decimal point go? (a) 0.245 (b) 24.5 (c) 0.0245 (d) 2.45
  6. 6.3.8 × 0.9 — where does the decimal point go? (a) 3.42 (b) 34.2 (c) 0.342 (d) 0.0342
  7. 7.0.22 × 19 — where does the decimal point go? (a) 41.8 (b) 0.418 (c) 0.0418 (d) 4.18
  8. 8.3.6 × 2.6 — where does the decimal point go? (a) 0.0936 (b) 0.936 (c) 9.36 (d) 93.6
  9. 9.1.9 × 16 — where does the decimal point go? (a) 304 (b) 30.4 (c) 0.304 (d) 3.04
  10. 10.4.2 × 3 — where does the decimal point go? (a) 12.6 (b) 1.26 (c) 126 (d) 0.126
  11. 11.1.8 × 3 — where does the decimal point go? (a) 5.4 (b) 0.54 (c) 0.054 (d) 54
  12. 12.0.19 × 5 — where does the decimal point go? (a) 0.0095 (b) 0.095 (c) 9.5 (d) 0.95
  13. 13.3.4 × 4 — where does the decimal point go? (a) 1.36 (b) 0.136 (c) 13.6 (d) 136
  14. 14.2.4 × 2 — where does the decimal point go? (a) 4.8 (b) 48 (c) 0.48 (d) 0.048
  15. 15.0.31 × 14 — where does the decimal point go? (a) 0.0434 (b) 43.4 (c) 4.34 (d) 0.434
  16. 16.7.3 × 15 — where does the decimal point go? (a) 109.5 (b) 1095 (c) 1.095 (d) 10.95
  17. 17.9.9 × 8 — where does the decimal point go? (a) 0.792 (b) 7.92 (c) 792 (d) 79.2
  18. 18.7.3 × 2.6 — where does the decimal point go? (a) 0.1898 (b) 18.98 (c) 189.8 (d) 1.898
  19. 19.0.26 × 8 — where does the decimal point go? (a) 0.208 (b) 20.8 (c) 2.08 (d) 0.0208
  20. 20.0.36 × 16 — where does the decimal point go? (a) 5.76 (b) 0.0576 (c) 0.576 (d) 57.6
  21. 21.0.82 × 9 — where does the decimal point go? (a) 0.738 (b) 0.0738 (c) 7.38 (d) 73.8
  22. 22.0.39 × 2 — where does the decimal point go? (a) 0.078 (b) 0.78 (c) 7.8 (d) 0.0078
  23. 23.1.9 × 0.9 — where does the decimal point go? (a) 17.1 (b) 0.171 (c) 1.71 (d) 0.0171
  24. 24.9.6 × 2.4 — where does the decimal point go? (a) 23.04 (b) 2.304 (c) 230.4 (d) 0.2304
  25. 25.0.14 × 7 — where does the decimal point go? (a) 0.098 (b) 0.98 (c) 9.8 (d) 0.0098
  26. 26.0.53 × 0.4 — where does the decimal point go? (a) 0.212 (b) 0.0212 (c) 0.00212 (d) 2.12
  27. 27.0.76 × 16 — where does the decimal point go? (a) 1.216 (b) 121.6 (c) 12.16 (d) 0.1216
  28. 28.8.5 × 17 — where does the decimal point go? (a) 1445 (b) 144.5 (c) 14.45 (d) 1.445
  29. 29.0.29 × 9 — where does the decimal point go? (a) 26.1 (b) 2.61 (c) 0.0261 (d) 0.261
  30. 30.0.84 × 0.3 — where does the decimal point go? (a) 2.52 (b) 0.00252 (c) 0.0252 (d) 0.252
  31. 31.9.9 × 0.2 — where does the decimal point go? (a) 0.198 (b) 19.8 (c) 0.0198 (d) 1.98
  32. 32.2.7 × 2.7 — where does the decimal point go? (a) 0.0729 (b) 0.729 (c) 7.29 (d) 72.9
  33. 33.4.1 × 0.8 — where does the decimal point go? (a) 3.28 (b) 0.0328 (c) 32.8 (d) 0.328
  34. 34.0.27 × 1.2 — where does the decimal point go? (a) 0.324 (b) 0.00324 (c) 3.24 (d) 0.0324
  35. 35.8.2 × 27 — where does the decimal point go? (a) 2.214 (b) 22.14 (c) 221.4 (d) 2214
  36. 36.0.89 × 15 — where does the decimal point go? (a) 133.5 (b) 13.35 (c) 1.335 (d) 0.1335
  37. 37.4.7 × 2.8 — where does the decimal point go? (a) 13.16 (b) 1.316 (c) 0.1316 (d) 131.6
  38. 38.6.2 × 0.9 — where does the decimal point go? (a) 5.58 (b) 0.558 (c) 0.0558 (d) 55.8
  39. 39.0.27 × 3 — where does the decimal point go? (a) 0.0081 (b) 0.81 (c) 0.081 (d) 8.1
  40. 40.9.2 × 29 — where does the decimal point go? (a) 2668 (b) 2.668 (c) 266.8 (d) 26.68

Answer key

  1. 27.3
  2. 1.04
  3. 2.91
  4. 0.98
  5. 2.45
  6. 3.42
  7. 4.18
  8. 9.36
  9. 30.4
  10. 12.6
  11. 5.4
  12. 0.95
  13. 13.6
  14. 4.8
  15. 4.34
  16. 109.5
  17. 79.2
  18. 18.98
  19. 2.08
  20. 5.76
  21. 7.38
  22. 0.78
  23. 1.71
  24. 23.04
  25. 0.98
  26. 0.212
  27. 12.16
  28. 144.5
  29. 2.61
  30. 0.252
  31. 1.98
  32. 7.29
  33. 3.28
  34. 0.324
  35. 221.4
  36. 13.35
  37. 13.16
  38. 5.58
  39. 0.81
  40. 266.8

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