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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 64 · 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. 1.29.34 × 10 =
  2. 2.279.3 × 100 =
  3. 3.42.81 × 100 =
  4. 4.236.4 ÷ 100 =
  5. 5.377.6 × 100 =
  6. 6.6.98 ÷ 1000 =
  7. 7.236.4 × 10 =
  8. 8.49.18 ÷ 10 =
  9. 9.461.1 ÷ 100 =
  10. 10.302.7 × 1000 =
  11. 11.271.9 ÷ 10 =
  12. 12.12.87 × 10 =
  13. 13.212.4 × 1000 =
  14. 14.14.6 ÷ 1000 =
  15. 15.45.48 ÷ 10 =
  16. 16.21.97 ÷ 1000 =
  17. 17.34.62 × 10 =
  18. 18.311.3 × 100 =
  19. 19.440.7 × 100 =
  20. 20.468.3 × 1000 =
  21. 21.219.6 ÷ 100 =
  22. 22.0.29 ÷ 100 =
  23. 23.14.11 ÷ 1000 =
  24. 24.70.3 × 100 =
  25. 25.18.27 ÷ 1000 =
  26. 26.33.19 × 100 =
  27. 27.3.39 × 10 =
  28. 28.17.14 ÷ 100 =
  29. 29.117.1 × 100 =
  30. 30.447.2 × 10 =
  31. 31.2.71 × 100 =
  32. 32.41.03 × 100 =
  33. 33.42.22 ÷ 10 =
  34. 34.0.14 ÷ 1000 =
  35. 35.20.85 ÷ 1000 =
  36. 36.10.08 × 10 =
  37. 37.48.6 ÷ 1000 =
  38. 38.326.7 ÷ 1000 =
  39. 39.85.2 ÷ 10 =
  40. 40.121.5 × 100 =

Answer key

  1. 293.4
  2. 27930
  3. 4281
  4. 2.364
  5. 37760
  6. 0.00698
  7. 2364
  8. 4.918
  9. 4.611
  10. 302700
  11. 27.19
  12. 128.7
  13. 212400
  14. 0.0146
  15. 4.548
  16. 0.02197
  17. 346.2
  18. 31130
  19. 44070
  20. 468300
  21. 2.196
  22. 0.0029
  23. 0.01411
  24. 7030
  25. 0.01827
  26. 3319
  27. 33.9
  28. 0.1714
  29. 11710
  30. 4472
  31. 271
  32. 4103
  33. 4.222
  34. 0.00014
  35. 0.02085
  36. 100.8
  37. 0.0486
  38. 0.3267
  39. 8.52
  40. 12150

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