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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 76 · 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. 1.166.1 ÷ 1000 =
  2. 2.51.6 × 10 =
  3. 3.21.47 ÷ 100 =
  4. 4.3.41 × 1000 =
  5. 5.423.3 ÷ 100 =
  6. 6.310.7 ÷ 10 =
  7. 7.38.89 × 1000 =
  8. 8.18.32 × 100 =
  9. 9.8.92 × 100 =
  10. 10.25.6 × 100 =
  11. 11.68.2 ÷ 1000 =
  12. 12.27.16 ÷ 1000 =
  13. 13.1.45 × 1000 =
  14. 14.23.6 ÷ 100 =
  15. 15.345.4 × 1000 =
  16. 16.17.16 × 100 =
  17. 17.47.44 × 1000 =
  18. 18.388.9 ÷ 100 =
  19. 19.36.82 × 10 =
  20. 20.195.4 × 10 =
  21. 21.22.01 ÷ 100 =
  22. 22.26.21 × 100 =
  23. 23.38.18 ÷ 10 =
  24. 24.1.29 × 10 =
  25. 25.109.8 × 100 =
  26. 26.25.11 × 1000 =
  27. 27.354.8 × 100 =
  28. 28.47.45 ÷ 1000 =
  29. 29.221.6 ÷ 1000 =
  30. 30.27.16 × 10 =
  31. 31.383.6 ÷ 100 =
  32. 32.31.95 ÷ 10 =
  33. 33.409.3 ÷ 100 =
  34. 34.4.29 × 100 =
  35. 35.7.05 × 10 =
  36. 36.29.11 ÷ 1000 =
  37. 37.1.41 ÷ 100 =
  38. 38.13.71 ÷ 100 =
  39. 39.45.36 ÷ 10 =
  40. 40.17.05 ÷ 1000 =

Answer key

  1. 0.1661
  2. 516
  3. 0.2147
  4. 3410
  5. 4.233
  6. 31.07
  7. 38890
  8. 1832
  9. 892
  10. 2560
  11. 0.0682
  12. 0.02716
  13. 1450
  14. 0.236
  15. 345400
  16. 1716
  17. 47440
  18. 3.889
  19. 368.2
  20. 1954
  21. 0.2201
  22. 2621
  23. 3.818
  24. 12.9
  25. 10980
  26. 25110
  27. 35480
  28. 0.04745
  29. 0.2216
  30. 271.6
  31. 3.836
  32. 3.195
  33. 4.093
  34. 429
  35. 70.5
  36. 0.02911
  37. 0.0141
  38. 0.1371
  39. 4.536
  40. 0.01705

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