← Decimal point jumps lesson New set →

Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 123 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.2.31 × 100 =
  2. 2.472.2 ÷ 10 =
  3. 3.22.04 × 100 =
  4. 4.11.96 × 100 =
  5. 5.27.59 × 10 =
  6. 6.198.3 ÷ 1000 =
  7. 7.48.21 × 10 =
  8. 8.72.2 × 100 =
  9. 9.45.65 ÷ 10 =
  10. 10.207.6 ÷ 1000 =
  11. 11.444.9 × 10 =
  12. 12.23.02 × 10 =
  13. 13.5.27 × 100 =
  14. 14.37.31 ÷ 100 =
  15. 15.366.2 ÷ 100 =
  16. 16.48.47 ÷ 10 =
  17. 17.30.06 × 100 =
  18. 18.33.06 ÷ 100 =
  19. 19.1.43 × 10 =
  20. 20.108.1 × 10 =
  21. 21.22.31 × 1000 =
  22. 22.23.41 × 10 =
  23. 23.8.47 ÷ 10 =
  24. 24.49.81 × 10 =
  25. 25.11.91 ÷ 10 =
  26. 26.20.91 ÷ 10 =
  27. 27.1.43 × 10 =
  28. 28.329.4 × 10 =
  29. 29.413.6 ÷ 10 =
  30. 30.368.7 × 100 =
  31. 31.98.5 × 1000 =
  32. 32.186.6 ÷ 100 =
  33. 33.372.1 × 1000 =
  34. 34.444.8 ÷ 10 =
  35. 35.8.89 × 100 =
  36. 36.6.02 ÷ 10 =
  37. 37.3.4 ÷ 100 =
  38. 38.18.1 × 10 =
  39. 39.43.91 ÷ 100 =
  40. 40.9.21 ÷ 10 =

Answer key

  1. 231
  2. 47.22
  3. 2204
  4. 1196
  5. 275.9
  6. 0.1983
  7. 482.1
  8. 7220
  9. 4.565
  10. 0.2076
  11. 4449
  12. 230.2
  13. 527
  14. 0.3731
  15. 3.662
  16. 4.847
  17. 3006
  18. 0.3306
  19. 14.3
  20. 1081
  21. 22310
  22. 234.1
  23. 0.847
  24. 498.1
  25. 1.191
  26. 2.091
  27. 14.3
  28. 3294
  29. 41.36
  30. 36870
  31. 98500
  32. 1.866
  33. 372100
  34. 44.48
  35. 889
  36. 0.602
  37. 0.034
  38. 181
  39. 0.4391
  40. 0.921

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