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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 684 · 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. 1.109.7 ÷ 100 =
  2. 2.271.1 × 1000 =
  3. 3.152.8 × 1000 =
  4. 4.42.76 × 1000 =
  5. 5.10.74 × 10 =
  6. 6.471.9 × 100 =
  7. 7.132.8 ÷ 1000 =
  8. 8.1.48 ÷ 10 =
  9. 9.29.53 × 10 =
  10. 10.419.1 × 1000 =
  11. 11.413.1 ÷ 1000 =
  12. 12.32.21 ÷ 10 =
  13. 13.44.32 × 1000 =
  14. 14.66.3 × 10 =
  15. 15.250.7 ÷ 10 =
  16. 16.459.6 × 10 =
  17. 17.187.5 × 100 =
  18. 18.414.9 ÷ 10 =
  19. 19.38.19 × 10 =
  20. 20.23.17 × 1000 =
  21. 21.30.53 ÷ 1000 =
  22. 22.109.8 ÷ 100 =
  23. 23.327.3 ÷ 100 =
  24. 24.27.41 × 100 =
  25. 25.9.75 × 100 =
  26. 26.164.6 × 10 =
  27. 27.260.2 × 100 =
  28. 28.17.12 × 1000 =
  29. 29.490.1 ÷ 100 =
  30. 30.263.1 ÷ 10 =
  31. 31.277.7 ÷ 1000 =
  32. 32.17.72 × 1000 =
  33. 33.0.39 ÷ 100 =
  34. 34.35.47 ÷ 100 =
  35. 35.11.11 × 10 =
  36. 36.40.29 ÷ 10 =
  37. 37.13.2 × 1000 =
  38. 38.12.71 × 1000 =
  39. 39.0.95 ÷ 10 =
  40. 40.290.6 ÷ 10 =

Answer key

  1. 1.097
  2. 271100
  3. 152800
  4. 42760
  5. 107.4
  6. 47190
  7. 0.1328
  8. 0.148
  9. 295.3
  10. 419100
  11. 0.4131
  12. 3.221
  13. 44320
  14. 663
  15. 25.07
  16. 4596
  17. 18750
  18. 41.49
  19. 381.9
  20. 23170
  21. 0.03053
  22. 1.098
  23. 3.273
  24. 2741
  25. 975
  26. 1646
  27. 26020
  28. 17120
  29. 4.901
  30. 26.31
  31. 0.2777
  32. 17720
  33. 0.0039
  34. 0.3547
  35. 111.1
  36. 4.029
  37. 13200
  38. 12710
  39. 0.095
  40. 29.06

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