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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 683 · 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. 1.4.6 × 2 — where does the decimal point go? (a) 92 (b) 9.2 (c) 0.92 (d) 0.092
  2. 2.1.4 × 3.1 — where does the decimal point go? (a) 0.0434 (b) 4.34 (c) 43.4 (d) 0.434
  3. 3.8.7 × 4 — where does the decimal point go? (a) 34.8 (b) 3.48 (c) 0.348 (d) 348
  4. 4.0.98 × 1.2 — where does the decimal point go? (a) 11.76 (b) 1.176 (c) 0.1176 (d) 0.01176
  5. 5.5.6 × 2.9 — where does the decimal point go? (a) 1.624 (b) 16.24 (c) 0.1624 (d) 162.4
  6. 6.4.1 × 0.3 — where does the decimal point go? (a) 0.0123 (b) 1.23 (c) 0.123 (d) 12.3
  7. 7.0.24 × 18 — where does the decimal point go? (a) 43.2 (b) 0.0432 (c) 4.32 (d) 0.432
  8. 8.0.62 × 38 — where does the decimal point go? (a) 235.6 (b) 23.56 (c) 2.356 (d) 0.2356
  9. 9.0.24 × 7 — where does the decimal point go? (a) 0.0168 (b) 0.168 (c) 1.68 (d) 16.8
  10. 10.4.4 × 7 — where does the decimal point go? (a) 30.8 (b) 308 (c) 0.308 (d) 3.08
  11. 11.7.1 × 1.2 — where does the decimal point go? (a) 85.2 (b) 0.0852 (c) 8.52 (d) 0.852
  12. 12.6.7 × 0.6 — where does the decimal point go? (a) 0.402 (b) 4.02 (c) 40.2 (d) 0.0402
  13. 13.0.26 × 48 — where does the decimal point go? (a) 0.1248 (b) 1.248 (c) 124.8 (d) 12.48
  14. 14.0.68 × 0.2 — where does the decimal point go? (a) 0.0136 (b) 1.36 (c) 0.00136 (d) 0.136
  15. 15.2.6 × 7 — where does the decimal point go? (a) 0.182 (b) 18.2 (c) 1.82 (d) 182
  16. 16.3.6 × 2.4 — where does the decimal point go? (a) 0.864 (b) 8.64 (c) 86.4 (d) 0.0864
  17. 17.0.32 × 4.4 — where does the decimal point go? (a) 1.408 (b) 0.1408 (c) 14.08 (d) 0.01408
  18. 18.5.1 × 3.1 — where does the decimal point go? (a) 1.581 (b) 15.81 (c) 158.1 (d) 0.1581
  19. 19.0.67 × 0.7 — where does the decimal point go? (a) 0.00469 (b) 0.0469 (c) 4.69 (d) 0.469
  20. 20.0.78 × 3 — where does the decimal point go? (a) 2.34 (b) 0.234 (c) 0.0234 (d) 23.4
  21. 21.1.4 × 0.3 — where does the decimal point go? (a) 0.42 (b) 0.0042 (c) 0.042 (d) 4.2
  22. 22.4.9 × 0.5 — where does the decimal point go? (a) 0.245 (b) 24.5 (c) 0.0245 (d) 2.45
  23. 23.0.42 × 0.4 — where does the decimal point go? (a) 1.68 (b) 0.00168 (c) 0.0168 (d) 0.168
  24. 24.0.36 × 8 — where does the decimal point go? (a) 0.288 (b) 2.88 (c) 0.0288 (d) 28.8
  25. 25.0.31 × 0.6 — where does the decimal point go? (a) 0.00186 (b) 0.0186 (c) 0.186 (d) 1.86
  26. 26.0.44 × 4 — where does the decimal point go? (a) 0.0176 (b) 0.176 (c) 17.6 (d) 1.76
  27. 27.8.1 × 1.2 — where does the decimal point go? (a) 97.2 (b) 9.72 (c) 0.0972 (d) 0.972
  28. 28.8.7 × 2 — where does the decimal point go? (a) 0.174 (b) 1.74 (c) 174 (d) 17.4
  29. 29.7.2 × 18 — where does the decimal point go? (a) 12.96 (b) 129.6 (c) 1296 (d) 1.296
  30. 30.8.9 × 7 — where does the decimal point go? (a) 62.3 (b) 6.23 (c) 623 (d) 0.623
  31. 31.0.22 × 3 — where does the decimal point go? (a) 6.6 (b) 0.66 (c) 0.0066 (d) 0.066
  32. 32.7.2 × 17 — where does the decimal point go? (a) 12.24 (b) 1224 (c) 122.4 (d) 1.224
  33. 33.3.8 × 1.7 — where does the decimal point go? (a) 0.646 (b) 0.0646 (c) 6.46 (d) 64.6
  34. 34.5.9 × 7 — where does the decimal point go? (a) 4.13 (b) 0.413 (c) 413 (d) 41.3
  35. 35.0.24 × 4 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 9.6 (d) 0.0096
  36. 36.5.1 × 0.2 — where does the decimal point go? (a) 0.102 (b) 10.2 (c) 1.02 (d) 0.0102
  37. 37.1.7 × 9 — where does the decimal point go? (a) 0.153 (b) 153 (c) 15.3 (d) 1.53
  38. 38.0.94 × 3.9 — where does the decimal point go? (a) 0.03666 (b) 36.66 (c) 3.666 (d) 0.3666
  39. 39.9.9 × 41 — where does the decimal point go? (a) 4059 (b) 405.9 (c) 4.059 (d) 40.59
  40. 40.6.9 × 1.2 — where does the decimal point go? (a) 0.828 (b) 82.8 (c) 8.28 (d) 0.0828

Answer key

  1. 9.2
  2. 4.34
  3. 34.8
  4. 1.176
  5. 16.24
  6. 1.23
  7. 4.32
  8. 23.56
  9. 1.68
  10. 30.8
  11. 8.52
  12. 4.02
  13. 12.48
  14. 0.136
  15. 18.2
  16. 8.64
  17. 1.408
  18. 15.81
  19. 0.469
  20. 2.34
  21. 0.42
  22. 2.45
  23. 0.168
  24. 2.88
  25. 0.186
  26. 1.76
  27. 9.72
  28. 17.4
  29. 129.6
  30. 62.3
  31. 0.66
  32. 122.4
  33. 6.46
  34. 41.3
  35. 0.96
  36. 1.02
  37. 15.3
  38. 3.666
  39. 405.9
  40. 8.28

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