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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 614 · 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. 1.46.75 × 100 =
  2. 2.40.4 × 1000 =
  3. 3.48.72 × 1000 =
  4. 4.6.02 × 100 =
  5. 5.3.35 × 1000 =
  6. 6.420.1 × 100 =
  7. 7.11.59 ÷ 10 =
  8. 8.25.51 ÷ 10 =
  9. 9.119.6 ÷ 100 =
  10. 10.188.7 × 100 =
  11. 11.15.01 ÷ 1000 =
  12. 12.37.02 ÷ 1000 =
  13. 13.370.2 × 1000 =
  14. 14.2.61 × 10 =
  15. 15.422.1 ÷ 100 =
  16. 16.0.38 ÷ 10 =
  17. 17.337.6 × 1000 =
  18. 18.26.15 ÷ 100 =
  19. 19.384.7 ÷ 100 =
  20. 20.15.01 × 1000 =
  21. 21.118.6 × 100 =
  22. 22.201.9 × 100 =
  23. 23.116.4 ÷ 1000 =
  24. 24.30.23 ÷ 10 =
  25. 25.160.6 ÷ 10 =
  26. 26.40.52 × 10 =
  27. 27.226.3 ÷ 1000 =
  28. 28.46.94 ÷ 10 =
  29. 29.197.5 × 1000 =
  30. 30.37.26 ÷ 100 =
  31. 31.75.2 × 10 =
  32. 32.1.94 ÷ 1000 =
  33. 33.4.08 ÷ 1000 =
  34. 34.41.81 × 100 =
  35. 35.44.82 ÷ 10 =
  36. 36.32.81 ÷ 100 =
  37. 37.242.2 ÷ 1000 =
  38. 38.266.5 ÷ 100 =
  39. 39.157.1 × 10 =
  40. 40.199.7 ÷ 10 =

Answer key

  1. 4675
  2. 40400
  3. 48720
  4. 602
  5. 3350
  6. 42010
  7. 1.159
  8. 2.551
  9. 1.196
  10. 18870
  11. 0.01501
  12. 0.03702
  13. 370200
  14. 26.1
  15. 4.221
  16. 0.038
  17. 337600
  18. 0.2615
  19. 3.847
  20. 15010
  21. 11860
  22. 20190
  23. 0.1164
  24. 3.023
  25. 16.06
  26. 405.2
  27. 0.2263
  28. 4.694
  29. 197500
  30. 0.3726
  31. 752
  32. 0.00194
  33. 0.00408
  34. 4181
  35. 4.482
  36. 0.3281
  37. 0.2422
  38. 2.665
  39. 1571
  40. 19.97

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