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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 424 · 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. 1.2.5 × 0.5 — where does the decimal point go? (a) 0.0125 (b) 12.5 (c) 0.125 (d) 1.25
  2. 2.7.1 × 3 — where does the decimal point go? (a) 21.3 (b) 0.213 (c) 2.13 (d) 213
  3. 3.4.1 × 0.5 — where does the decimal point go? (a) 2.05 (b) 20.5 (c) 0.0205 (d) 0.205
  4. 4.6.7 × 34 — where does the decimal point go? (a) 2.278 (b) 227.8 (c) 22.78 (d) 2278
  5. 5.0.58 × 8 — where does the decimal point go? (a) 0.0464 (b) 4.64 (c) 0.464 (d) 46.4
  6. 6.0.44 × 2.3 — where does the decimal point go? (a) 0.1012 (b) 1.012 (c) 10.12 (d) 0.01012
  7. 7.4.2 × 7 — where does the decimal point go? (a) 29.4 (b) 0.294 (c) 2.94 (d) 294
  8. 8.9.4 × 0.9 — where does the decimal point go? (a) 84.6 (b) 8.46 (c) 0.846 (d) 0.0846
  9. 9.3.7 × 2 — where does the decimal point go? (a) 74 (b) 0.74 (c) 7.4 (d) 0.074
  10. 10.6.2 × 0.9 — where does the decimal point go? (a) 0.558 (b) 5.58 (c) 0.0558 (d) 55.8
  11. 11.0.49 × 2.7 — where does the decimal point go? (a) 0.1323 (b) 1.323 (c) 0.01323 (d) 13.23
  12. 12.8.6 × 3.8 — where does the decimal point go? (a) 326.8 (b) 3.268 (c) 0.3268 (d) 32.68
  13. 13.7.8 × 19 — where does the decimal point go? (a) 1482 (b) 14.82 (c) 148.2 (d) 1.482
  14. 14.0.16 × 23 — where does the decimal point go? (a) 36.8 (b) 0.0368 (c) 0.368 (d) 3.68
  15. 15.0.13 × 2 — where does the decimal point go? (a) 0.26 (b) 0.026 (c) 0.0026 (d) 2.6
  16. 16.9.1 × 28 — where does the decimal point go? (a) 254.8 (b) 2548 (c) 25.48 (d) 2.548
  17. 17.0.62 × 9 — where does the decimal point go? (a) 55.8 (b) 5.58 (c) 0.0558 (d) 0.558
  18. 18.0.13 × 15 — where does the decimal point go? (a) 19.5 (b) 1.95 (c) 0.0195 (d) 0.195
  19. 19.5.6 × 6 — where does the decimal point go? (a) 0.336 (b) 3.36 (c) 336 (d) 33.6
  20. 20.4.8 × 6 — where does the decimal point go? (a) 0.288 (b) 288 (c) 2.88 (d) 28.8
  21. 21.1.5 × 0.3 — where does the decimal point go? (a) 0.45 (b) 0.045 (c) 0.0045 (d) 4.5
  22. 22.0.33 × 3.8 — where does the decimal point go? (a) 1.254 (b) 0.1254 (c) 0.01254 (d) 12.54
  23. 23.0.71 × 34 — where does the decimal point go? (a) 24.14 (b) 2.414 (c) 0.2414 (d) 241.4
  24. 24.8.5 × 9 — where does the decimal point go? (a) 7.65 (b) 765 (c) 0.765 (d) 76.5
  25. 25.7.6 × 0.3 — where does the decimal point go? (a) 0.0228 (b) 22.8 (c) 2.28 (d) 0.228
  26. 26.4.3 × 3.6 — where does the decimal point go? (a) 154.8 (b) 0.1548 (c) 1.548 (d) 15.48
  27. 27.0.53 × 7 — where does the decimal point go? (a) 0.0371 (b) 3.71 (c) 0.371 (d) 37.1
  28. 28.8.7 × 6 — where does the decimal point go? (a) 52.2 (b) 0.522 (c) 5.22 (d) 522
  29. 29.7.3 × 4.6 — where does the decimal point go? (a) 0.3358 (b) 3.358 (c) 335.8 (d) 33.58
  30. 30.0.76 × 9 — where does the decimal point go? (a) 0.684 (b) 68.4 (c) 0.0684 (d) 6.84
  31. 31.3.6 × 3 — where does the decimal point go? (a) 0.108 (b) 108 (c) 10.8 (d) 1.08
  32. 32.1.6 × 9 — where does the decimal point go? (a) 1.44 (b) 0.144 (c) 144 (d) 14.4
  33. 33.0.13 × 3 — where does the decimal point go? (a) 0.39 (b) 0.039 (c) 0.0039 (d) 3.9
  34. 34.1.2 × 9 — where does the decimal point go? (a) 0.108 (b) 108 (c) 10.8 (d) 1.08
  35. 35.1.4 × 1.1 — where does the decimal point go? (a) 1.54 (b) 0.0154 (c) 15.4 (d) 0.154
  36. 36.5.5 × 0.7 — where does the decimal point go? (a) 3.85 (b) 0.385 (c) 0.0385 (d) 38.5
  37. 37.0.38 × 1.8 — where does the decimal point go? (a) 6.84 (b) 0.00684 (c) 0.684 (d) 0.0684
  38. 38.7.5 × 17 — where does the decimal point go? (a) 127.5 (b) 12.75 (c) 1.275 (d) 1275
  39. 39.0.66 × 4.2 — where does the decimal point go? (a) 0.02772 (b) 0.2772 (c) 27.72 (d) 2.772
  40. 40.0.98 × 3.8 — where does the decimal point go? (a) 0.3724 (b) 0.03724 (c) 3.724 (d) 37.24

Answer key

  1. 1.25
  2. 21.3
  3. 2.05
  4. 227.8
  5. 4.64
  6. 1.012
  7. 29.4
  8. 8.46
  9. 7.4
  10. 5.58
  11. 1.323
  12. 32.68
  13. 148.2
  14. 3.68
  15. 0.26
  16. 254.8
  17. 5.58
  18. 1.95
  19. 33.6
  20. 28.8
  21. 0.45
  22. 1.254
  23. 24.14
  24. 76.5
  25. 2.28
  26. 15.48
  27. 3.71
  28. 52.2
  29. 33.58
  30. 6.84
  31. 10.8
  32. 14.4
  33. 0.39
  34. 10.8
  35. 1.54
  36. 3.85
  37. 0.684
  38. 127.5
  39. 2.772
  40. 3.724

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