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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 367 · 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. 1.2.6 × 28 — where does the decimal point go? (a) 0.728 (b) 72.8 (c) 728 (d) 7.28
  2. 2.3.7 × 4 — where does the decimal point go? (a) 0.148 (b) 148 (c) 14.8 (d) 1.48
  3. 3.8.8 × 0.3 — where does the decimal point go? (a) 26.4 (b) 2.64 (c) 0.264 (d) 0.0264
  4. 4.8.7 × 3.9 — where does the decimal point go? (a) 33.93 (b) 0.3393 (c) 3.393 (d) 339.3
  5. 5.3.6 × 8 — where does the decimal point go? (a) 28.8 (b) 288 (c) 2.88 (d) 0.288
  6. 6.0.57 × 0.7 — where does the decimal point go? (a) 0.0399 (b) 3.99 (c) 0.00399 (d) 0.399
  7. 7.2.7 × 0.5 — where does the decimal point go? (a) 0.0135 (b) 1.35 (c) 0.135 (d) 13.5
  8. 8.3.8 × 3.7 — where does the decimal point go? (a) 0.1406 (b) 1.406 (c) 140.6 (d) 14.06
  9. 9.4.2 × 9 — where does the decimal point go? (a) 0.378 (b) 3.78 (c) 378 (d) 37.8
  10. 10.0.93 × 0.8 — where does the decimal point go? (a) 0.744 (b) 0.00744 (c) 0.0744 (d) 7.44
  11. 11.8.7 × 17 — where does the decimal point go? (a) 1.479 (b) 14.79 (c) 147.9 (d) 1479
  12. 12.0.18 × 24 — where does the decimal point go? (a) 4.32 (b) 0.432 (c) 0.0432 (d) 43.2
  13. 13.0.94 × 38 — where does the decimal point go? (a) 357.2 (b) 35.72 (c) 0.3572 (d) 3.572
  14. 14.0.82 × 0.9 — where does the decimal point go? (a) 0.00738 (b) 0.738 (c) 0.0738 (d) 7.38
  15. 15.0.79 × 1.9 — where does the decimal point go? (a) 1.501 (b) 0.01501 (c) 15.01 (d) 0.1501
  16. 16.0.34 × 33 — where does the decimal point go? (a) 1.122 (b) 0.1122 (c) 11.22 (d) 112.2
  17. 17.3.1 × 2.7 — where does the decimal point go? (a) 0.0837 (b) 8.37 (c) 0.837 (d) 83.7
  18. 18.0.69 × 5 — where does the decimal point go? (a) 0.0345 (b) 34.5 (c) 0.345 (d) 3.45
  19. 19.0.91 × 2 — where does the decimal point go? (a) 18.2 (b) 1.82 (c) 0.0182 (d) 0.182
  20. 20.3.2 × 0.2 — where does the decimal point go? (a) 0.064 (b) 0.0064 (c) 0.64 (d) 6.4
  21. 21.8.6 × 1.1 — where does the decimal point go? (a) 0.946 (b) 0.0946 (c) 9.46 (d) 94.6
  22. 22.5.9 × 1.3 — where does the decimal point go? (a) 0.767 (b) 0.0767 (c) 76.7 (d) 7.67
  23. 23.0.35 × 3.1 — where does the decimal point go? (a) 1.085 (b) 10.85 (c) 0.1085 (d) 0.01085
  24. 24.2.9 × 4 — where does the decimal point go? (a) 1.16 (b) 116 (c) 0.116 (d) 11.6
  25. 25.7.4 × 24 — where does the decimal point go? (a) 1776 (b) 17.76 (c) 1.776 (d) 177.6
  26. 26.1.3 × 4.9 — where does the decimal point go? (a) 0.637 (b) 63.7 (c) 6.37 (d) 0.0637
  27. 27.0.68 × 0.2 — where does the decimal point go? (a) 0.136 (b) 0.00136 (c) 1.36 (d) 0.0136
  28. 28.0.76 × 2 — where does the decimal point go? (a) 0.152 (b) 0.0152 (c) 15.2 (d) 1.52
  29. 29.0.24 × 0.7 — where does the decimal point go? (a) 0.00168 (b) 1.68 (c) 0.0168 (d) 0.168
  30. 30.2.8 × 0.3 — where does the decimal point go? (a) 0.0084 (b) 0.84 (c) 0.084 (d) 8.4
  31. 31.0.51 × 42 — where does the decimal point go? (a) 21.42 (b) 0.2142 (c) 2.142 (d) 214.2
  32. 32.0.28 × 8 — where does the decimal point go? (a) 0.0224 (b) 22.4 (c) 0.224 (d) 2.24
  33. 33.0.99 × 2.5 — where does the decimal point go? (a) 0.2475 (b) 2.475 (c) 24.75 (d) 0.02475
  34. 34.0.31 × 4 — where does the decimal point go? (a) 1.24 (b) 0.0124 (c) 0.124 (d) 12.4
  35. 35.9.8 × 2 — where does the decimal point go? (a) 0.196 (b) 1.96 (c) 19.6 (d) 196
  36. 36.8.1 × 3.4 — where does the decimal point go? (a) 27.54 (b) 2.754 (c) 0.2754 (d) 275.4
  37. 37.5.6 × 13 — where does the decimal point go? (a) 728 (b) 7.28 (c) 0.728 (d) 72.8
  38. 38.1.3 × 4.2 — where does the decimal point go? (a) 54.6 (b) 5.46 (c) 0.0546 (d) 0.546
  39. 39.2.8 × 0.9 — where does the decimal point go? (a) 0.252 (b) 2.52 (c) 0.0252 (d) 25.2
  40. 40.4.6 × 0.7 — where does the decimal point go? (a) 3.22 (b) 0.0322 (c) 0.322 (d) 32.2

Answer key

  1. 72.8
  2. 14.8
  3. 2.64
  4. 33.93
  5. 28.8
  6. 0.399
  7. 1.35
  8. 14.06
  9. 37.8
  10. 0.744
  11. 147.9
  12. 4.32
  13. 35.72
  14. 0.738
  15. 1.501
  16. 11.22
  17. 8.37
  18. 3.45
  19. 1.82
  20. 0.64
  21. 9.46
  22. 7.67
  23. 1.085
  24. 11.6
  25. 177.6
  26. 6.37
  27. 0.136
  28. 1.52
  29. 0.168
  30. 0.84
  31. 21.42
  32. 2.24
  33. 2.475
  34. 1.24
  35. 19.6
  36. 27.54
  37. 72.8
  38. 5.46
  39. 2.52
  40. 3.22

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