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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 111 · 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. 1.22.6 × 1000 =
  2. 2.222.3 ÷ 10 =
  3. 3.86.3 ÷ 1000 =
  4. 4.26.67 ÷ 1000 =
  5. 5.197.1 ÷ 10 =
  6. 6.340.5 ÷ 1000 =
  7. 7.29.93 × 100 =
  8. 8.482.9 × 100 =
  9. 9.38.26 × 1000 =
  10. 10.83.1 × 100 =
  11. 11.442.2 ÷ 100 =
  12. 12.168.5 × 10 =
  13. 13.317.1 × 10 =
  14. 14.39.77 × 10 =
  15. 15.10.33 × 10 =
  16. 16.14.96 ÷ 10 =
  17. 17.34.72 × 100 =
  18. 18.41.11 × 1000 =
  19. 19.27.4 × 1000 =
  20. 20.22.15 ÷ 10 =
  21. 21.45.01 ÷ 1000 =
  22. 22.39.27 ÷ 1000 =
  23. 23.9.11 × 100 =
  24. 24.37.67 × 1000 =
  25. 25.207.9 × 100 =
  26. 26.47.34 ÷ 100 =
  27. 27.19.5 ÷ 1000 =
  28. 28.37.61 × 100 =
  29. 29.409.7 × 10 =
  30. 30.300.6 × 1000 =
  31. 31.43.3 ÷ 1000 =
  32. 32.25.65 ÷ 100 =
  33. 33.22.95 × 10 =
  34. 34.58.4 ÷ 10 =
  35. 35.177.5 × 100 =
  36. 36.489.3 × 100 =
  37. 37.49.49 × 100 =
  38. 38.47.22 × 10 =
  39. 39.42.44 ÷ 1000 =
  40. 40.150.8 × 1000 =

Answer key

  1. 22600
  2. 22.23
  3. 0.0863
  4. 0.02667
  5. 19.71
  6. 0.3405
  7. 2993
  8. 48290
  9. 38260
  10. 8310
  11. 4.422
  12. 1685
  13. 3171
  14. 397.7
  15. 103.3
  16. 1.496
  17. 3472
  18. 41110
  19. 27400
  20. 2.215
  21. 0.04501
  22. 0.03927
  23. 911
  24. 37670
  25. 20790
  26. 0.4734
  27. 0.0195
  28. 3761
  29. 4097
  30. 300600
  31. 0.0433
  32. 0.2565
  33. 229.5
  34. 5.84
  35. 17750
  36. 48930
  37. 4949
  38. 472.2
  39. 0.04244
  40. 150800

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