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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 294 · 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. 1.39.81 × 1000 =
  2. 2.101.6 ÷ 10 =
  3. 3.34.03 × 1000 =
  4. 4.16.53 × 1000 =
  5. 5.223.3 × 100 =
  6. 6.8.8 ÷ 10 =
  7. 7.64.2 ÷ 100 =
  8. 8.374.8 ÷ 10 =
  9. 9.40.23 ÷ 1000 =
  10. 10.188.5 ÷ 100 =
  11. 11.21.77 ÷ 1000 =
  12. 12.24.41 × 100 =
  13. 13.12.76 ÷ 1000 =
  14. 14.170.6 × 100 =
  15. 15.90.5 × 100 =
  16. 16.214.5 ÷ 100 =
  17. 17.11.71 ÷ 10 =
  18. 18.387.8 × 10 =
  19. 19.481.9 × 10 =
  20. 20.21.76 × 1000 =
  21. 21.44.91 ÷ 1000 =
  22. 22.39.9 × 100 =
  23. 23.403.7 ÷ 1000 =
  24. 24.138.8 ÷ 100 =
  25. 25.37.86 × 1000 =
  26. 26.11.8 ÷ 1000 =
  27. 27.387.1 ÷ 1000 =
  28. 28.37.3 × 1000 =
  29. 29.482.1 ÷ 100 =
  30. 30.83.6 ÷ 1000 =
  31. 31.31.81 × 100 =
  32. 32.65.9 ÷ 10 =
  33. 33.21.6 × 1000 =
  34. 34.364.5 ÷ 10 =
  35. 35.356.9 ÷ 100 =
  36. 36.12.27 ÷ 100 =
  37. 37.409.7 ÷ 1000 =
  38. 38.48.91 ÷ 10 =
  39. 39.472.6 ÷ 10 =
  40. 40.252.6 ÷ 100 =

Answer key

  1. 39810
  2. 10.16
  3. 34030
  4. 16530
  5. 22330
  6. 0.88
  7. 0.642
  8. 37.48
  9. 0.04023
  10. 1.885
  11. 0.02177
  12. 2441
  13. 0.01276
  14. 17060
  15. 9050
  16. 2.145
  17. 1.171
  18. 3878
  19. 4819
  20. 21760
  21. 0.04491
  22. 3990
  23. 0.4037
  24. 1.388
  25. 37860
  26. 0.0118
  27. 0.3871
  28. 37300
  29. 4.821
  30. 0.0836
  31. 3181
  32. 6.59
  33. 21600
  34. 36.45
  35. 3.569
  36. 0.1227
  37. 0.4097
  38. 4.891
  39. 47.26
  40. 2.526

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