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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 478 · 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. 1.33.03 ÷ 1000 =
  2. 2.373.3 ÷ 10 =
  3. 3.414.1 ÷ 10 =
  4. 4.45.91 ÷ 10 =
  5. 5.51.7 ÷ 100 =
  6. 6.121.1 ÷ 1000 =
  7. 7.384.1 ÷ 100 =
  8. 8.19.71 × 1000 =
  9. 9.85.3 × 10 =
  10. 10.12.06 ÷ 10 =
  11. 11.24.63 ÷ 1000 =
  12. 12.379.9 × 1000 =
  13. 13.20.93 × 10 =
  14. 14.34.65 × 10 =
  15. 15.470.5 × 10 =
  16. 16.499.2 ÷ 1000 =
  17. 17.463.7 ÷ 10 =
  18. 18.9.29 × 1000 =
  19. 19.37.99 ÷ 1000 =
  20. 20.60.2 × 100 =
  21. 21.17.29 × 10 =
  22. 22.111.5 × 1000 =
  23. 23.19.93 × 100 =
  24. 24.5.12 × 1000 =
  25. 25.479.1 ÷ 1000 =
  26. 26.30.31 × 100 =
  27. 27.484.3 ÷ 10 =
  28. 28.7.78 ÷ 1000 =
  29. 29.15.58 ÷ 10 =
  30. 30.46.27 ÷ 100 =
  31. 31.56.2 ÷ 10 =
  32. 32.353.9 × 100 =
  33. 33.495.3 × 100 =
  34. 34.8.41 × 10 =
  35. 35.4.27 × 100 =
  36. 36.1.76 × 10 =
  37. 37.478.8 ÷ 10 =
  38. 38.48.13 × 1000 =
  39. 39.317.3 ÷ 1000 =
  40. 40.18.85 × 100 =

Answer key

  1. 0.03303
  2. 37.33
  3. 41.41
  4. 4.591
  5. 0.517
  6. 0.1211
  7. 3.841
  8. 19710
  9. 853
  10. 1.206
  11. 0.02463
  12. 379900
  13. 209.3
  14. 346.5
  15. 4705
  16. 0.4992
  17. 46.37
  18. 9290
  19. 0.03799
  20. 6020
  21. 172.9
  22. 111500
  23. 1993
  24. 5120
  25. 0.4791
  26. 3031
  27. 48.43
  28. 0.00778
  29. 1.558
  30. 0.4627
  31. 5.62
  32. 35390
  33. 49530
  34. 84.1
  35. 427
  36. 17.6
  37. 47.88
  38. 48130
  39. 0.3173
  40. 1885

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