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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 319 · 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. 1.0.37 × 0.4 — where does the decimal point go? (a) 0.148 (b) 0.00148 (c) 0.0148 (d) 1.48
  2. 2.0.54 × 3 — where does the decimal point go? (a) 0.0162 (b) 16.2 (c) 0.162 (d) 1.62
  3. 3.0.78 × 4 — where does the decimal point go? (a) 0.0312 (b) 3.12 (c) 0.312 (d) 31.2
  4. 4.0.29 × 0.5 — where does the decimal point go? (a) 0.0145 (b) 0.00145 (c) 1.45 (d) 0.145
  5. 5.8.9 × 44 — where does the decimal point go? (a) 391.6 (b) 3.916 (c) 39.16 (d) 3916
  6. 6.9.7 × 4 — where does the decimal point go? (a) 38.8 (b) 0.388 (c) 388 (d) 3.88
  7. 7.3.2 × 0.6 — where does the decimal point go? (a) 0.0192 (b) 1.92 (c) 19.2 (d) 0.192
  8. 8.0.93 × 3.5 — where does the decimal point go? (a) 0.03255 (b) 32.55 (c) 0.3255 (d) 3.255
  9. 9.0.67 × 0.5 — where does the decimal point go? (a) 3.35 (b) 0.335 (c) 0.0335 (d) 0.00335
  10. 10.2.8 × 0.4 — where does the decimal point go? (a) 11.2 (b) 1.12 (c) 0.112 (d) 0.0112
  11. 11.0.29 × 8 — where does the decimal point go? (a) 0.232 (b) 23.2 (c) 2.32 (d) 0.0232
  12. 12.0.59 × 0.5 — where does the decimal point go? (a) 0.295 (b) 0.00295 (c) 2.95 (d) 0.0295
  13. 13.5.9 × 3 — where does the decimal point go? (a) 17.7 (b) 0.177 (c) 1.77 (d) 177
  14. 14.3.2 × 0.3 — where does the decimal point go? (a) 0.096 (b) 0.96 (c) 0.0096 (d) 9.6
  15. 15.8.1 × 15 — where does the decimal point go? (a) 121.5 (b) 1215 (c) 12.15 (d) 1.215
  16. 16.2.7 × 3.1 — where does the decimal point go? (a) 0.837 (b) 0.0837 (c) 8.37 (d) 83.7
  17. 17.2.5 × 4.7 — where does the decimal point go? (a) 117.5 (b) 1.175 (c) 11.75 (d) 0.1175
  18. 18.1.8 × 9 — where does the decimal point go? (a) 1.62 (b) 16.2 (c) 0.162 (d) 162
  19. 19.0.38 × 4.1 — where does the decimal point go? (a) 15.58 (b) 0.1558 (c) 0.01558 (d) 1.558
  20. 20.9.2 × 6 — where does the decimal point go? (a) 55.2 (b) 5.52 (c) 0.552 (d) 552
  21. 21.0.58 × 46 — where does the decimal point go? (a) 266.8 (b) 26.68 (c) 2.668 (d) 0.2668
  22. 22.4.3 × 7 — where does the decimal point go? (a) 301 (b) 3.01 (c) 30.1 (d) 0.301
  23. 23.9.1 × 3.6 — where does the decimal point go? (a) 32.76 (b) 3.276 (c) 0.3276 (d) 327.6
  24. 24.0.13 × 0.6 — where does the decimal point go? (a) 0.078 (b) 0.00078 (c) 0.78 (d) 0.0078
  25. 25.9.2 × 11 — where does the decimal point go? (a) 1.012 (b) 10.12 (c) 101.2 (d) 1012
  26. 26.5.9 × 2.6 — where does the decimal point go? (a) 0.1534 (b) 15.34 (c) 1.534 (d) 153.4
  27. 27.3.4 × 22 — where does the decimal point go? (a) 0.748 (b) 7.48 (c) 748 (d) 74.8
  28. 28.0.69 × 4 — where does the decimal point go? (a) 2.76 (b) 27.6 (c) 0.0276 (d) 0.276
  29. 29.8.9 × 3 — where does the decimal point go? (a) 267 (b) 2.67 (c) 0.267 (d) 26.7
  30. 30.1.3 × 0.7 — where does the decimal point go? (a) 0.91 (b) 9.1 (c) 0.091 (d) 0.0091
  31. 31.0.84 × 0.3 — where does the decimal point go? (a) 0.00252 (b) 0.0252 (c) 2.52 (d) 0.252
  32. 32.0.75 × 1.3 — where does the decimal point go? (a) 0.00975 (b) 0.975 (c) 9.75 (d) 0.0975
  33. 33.5.6 × 0.7 — where does the decimal point go? (a) 0.0392 (b) 0.392 (c) 39.2 (d) 3.92
  34. 34.5.1 × 2 — where does the decimal point go? (a) 10.2 (b) 102 (c) 1.02 (d) 0.102
  35. 35.1.3 × 2 — where does the decimal point go? (a) 0.26 (b) 26 (c) 2.6 (d) 0.026
  36. 36.0.57 × 4 — where does the decimal point go? (a) 2.28 (b) 0.0228 (c) 22.8 (d) 0.228
  37. 37.3.4 × 4 — where does the decimal point go? (a) 13.6 (b) 1.36 (c) 136 (d) 0.136
  38. 38.6.3 × 0.5 — where does the decimal point go? (a) 0.0315 (b) 31.5 (c) 3.15 (d) 0.315
  39. 39.0.26 × 7 — where does the decimal point go? (a) 1.82 (b) 18.2 (c) 0.0182 (d) 0.182
  40. 40.3.8 × 41 — where does the decimal point go? (a) 15.58 (b) 155.8 (c) 1.558 (d) 1558

Answer key

  1. 0.148
  2. 1.62
  3. 3.12
  4. 0.145
  5. 391.6
  6. 38.8
  7. 1.92
  8. 3.255
  9. 0.335
  10. 1.12
  11. 2.32
  12. 0.295
  13. 17.7
  14. 0.96
  15. 121.5
  16. 8.37
  17. 11.75
  18. 16.2
  19. 1.558
  20. 55.2
  21. 26.68
  22. 30.1
  23. 32.76
  24. 0.078
  25. 101.2
  26. 15.34
  27. 74.8
  28. 2.76
  29. 26.7
  30. 0.91
  31. 0.252
  32. 0.975
  33. 3.92
  34. 10.2
  35. 2.6
  36. 2.28
  37. 13.6
  38. 3.15
  39. 1.82
  40. 155.8

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