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

Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 604 · 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. 1.0.52 × 3 — where does the decimal point go? (a) 1.56 (b) 0.156 (c) 15.6 (d) 0.0156
  2. 2.0.99 × 3 — where does the decimal point go? (a) 2.97 (b) 0.297 (c) 29.7 (d) 0.0297
  3. 3.9.7 × 0.7 — where does the decimal point go? (a) 0.0679 (b) 0.679 (c) 6.79 (d) 67.9
  4. 4.0.93 × 43 — where does the decimal point go? (a) 39.99 (b) 3.999 (c) 0.3999 (d) 399.9
  5. 5.0.64 × 9 — where does the decimal point go? (a) 0.0576 (b) 57.6 (c) 5.76 (d) 0.576
  6. 6.2.1 × 3 — where does the decimal point go? (a) 63 (b) 6.3 (c) 0.063 (d) 0.63
  7. 7.0.19 × 0.8 — where does the decimal point go? (a) 1.52 (b) 0.00152 (c) 0.0152 (d) 0.152
  8. 8.0.86 × 0.9 — where does the decimal point go? (a) 0.774 (b) 7.74 (c) 0.00774 (d) 0.0774
  9. 9.0.33 × 0.3 — where does the decimal point go? (a) 0.0099 (b) 0.99 (c) 0.099 (d) 0.00099
  10. 10.0.28 × 2 — where does the decimal point go? (a) 0.56 (b) 5.6 (c) 0.0056 (d) 0.056
  11. 11.1.9 × 0.6 — where does the decimal point go? (a) 1.14 (b) 11.4 (c) 0.0114 (d) 0.114
  12. 12.7.2 × 6 — where does the decimal point go? (a) 43.2 (b) 0.432 (c) 432 (d) 4.32
  13. 13.1.4 × 22 — where does the decimal point go? (a) 30.8 (b) 308 (c) 0.308 (d) 3.08
  14. 14.0.34 × 1.7 — where does the decimal point go? (a) 0.00578 (b) 5.78 (c) 0.0578 (d) 0.578
  15. 15.0.85 × 37 — where does the decimal point go? (a) 31.45 (b) 0.3145 (c) 314.5 (d) 3.145
  16. 16.6.4 × 6 — where does the decimal point go? (a) 0.384 (b) 384 (c) 38.4 (d) 3.84
  17. 17.2.2 × 9 — where does the decimal point go? (a) 1.98 (b) 0.198 (c) 198 (d) 19.8
  18. 18.0.93 × 1.4 — where does the decimal point go? (a) 0.01302 (b) 0.1302 (c) 1.302 (d) 13.02
  19. 19.2.1 × 19 — where does the decimal point go? (a) 0.399 (b) 399 (c) 39.9 (d) 3.99
  20. 20.3.2 × 3 — where does the decimal point go? (a) 96 (b) 0.96 (c) 0.096 (d) 9.6
  21. 21.0.92 × 7 — where does the decimal point go? (a) 64.4 (b) 0.644 (c) 6.44 (d) 0.0644
  22. 22.2.6 × 3 — where does the decimal point go? (a) 0.078 (b) 78 (c) 7.8 (d) 0.78
  23. 23.5.3 × 27 — where does the decimal point go? (a) 14.31 (b) 1431 (c) 143.1 (d) 1.431
  24. 24.7.4 × 22 — where does the decimal point go? (a) 16.28 (b) 1.628 (c) 1628 (d) 162.8
  25. 25.7.6 × 0.4 — where does the decimal point go? (a) 0.0304 (b) 3.04 (c) 30.4 (d) 0.304
  26. 26.3.2 × 0.8 — where does the decimal point go? (a) 0.256 (b) 0.0256 (c) 25.6 (d) 2.56
  27. 27.0.41 × 8 — where does the decimal point go? (a) 0.328 (b) 3.28 (c) 0.0328 (d) 32.8
  28. 28.0.56 × 3.7 — where does the decimal point go? (a) 20.72 (b) 0.2072 (c) 0.02072 (d) 2.072
  29. 29.0.99 × 8 — where does the decimal point go? (a) 79.2 (b) 7.92 (c) 0.792 (d) 0.0792
  30. 30.0.87 × 1.3 — where does the decimal point go? (a) 0.1131 (b) 11.31 (c) 1.131 (d) 0.01131
  31. 31.0.47 × 9 — where does the decimal point go? (a) 0.423 (b) 4.23 (c) 42.3 (d) 0.0423
  32. 32.5.9 × 13 — where does the decimal point go? (a) 0.767 (b) 767 (c) 76.7 (d) 7.67
  33. 33.7.1 × 0.2 — where does the decimal point go? (a) 0.0142 (b) 1.42 (c) 14.2 (d) 0.142
  34. 34.8.6 × 2.1 — where does the decimal point go? (a) 18.06 (b) 1.806 (c) 180.6 (d) 0.1806
  35. 35.0.45 × 23 — where does the decimal point go? (a) 10.35 (b) 103.5 (c) 0.1035 (d) 1.035
  36. 36.0.44 × 12 — where does the decimal point go? (a) 0.0528 (b) 0.528 (c) 5.28 (d) 52.8
  37. 37.0.29 × 0.7 — where does the decimal point go? (a) 0.0203 (b) 0.00203 (c) 0.203 (d) 2.03
  38. 38.0.51 × 0.5 — where does the decimal point go? (a) 2.55 (b) 0.0255 (c) 0.00255 (d) 0.255
  39. 39.1.6 × 0.2 — where does the decimal point go? (a) 0.32 (b) 0.0032 (c) 3.2 (d) 0.032
  40. 40.0.87 × 2 — where does the decimal point go? (a) 17.4 (b) 1.74 (c) 0.0174 (d) 0.174

Answer key

  1. 1.56
  2. 2.97
  3. 6.79
  4. 39.99
  5. 5.76
  6. 6.3
  7. 0.152
  8. 0.774
  9. 0.099
  10. 0.56
  11. 1.14
  12. 43.2
  13. 30.8
  14. 0.578
  15. 31.45
  16. 38.4
  17. 19.8
  18. 1.302
  19. 39.9
  20. 9.6
  21. 6.44
  22. 7.8
  23. 143.1
  24. 162.8
  25. 3.04
  26. 2.56
  27. 3.28
  28. 2.072
  29. 7.92
  30. 1.131
  31. 4.23
  32. 76.7
  33. 1.42
  34. 18.06
  35. 10.35
  36. 5.28
  37. 0.203
  38. 0.255
  39. 0.32
  40. 1.74

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