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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 94 · 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. 1.2.01 ÷ 100 =
  2. 2.61.5 × 100 =
  3. 3.14.07 ÷ 1000 =
  4. 4.12.38 ÷ 1000 =
  5. 5.11.03 ÷ 1000 =
  6. 6.49.34 × 100 =
  7. 7.259.8 × 10 =
  8. 8.388.5 × 100 =
  9. 9.324.3 × 100 =
  10. 10.12.31 × 1000 =
  11. 11.64.5 × 1000 =
  12. 12.6.53 × 100 =
  13. 13.43.77 ÷ 1000 =
  14. 14.4.8 × 10 =
  15. 15.3.35 ÷ 1000 =
  16. 16.30.11 × 10 =
  17. 17.2.52 ÷ 10 =
  18. 18.359.3 ÷ 1000 =
  19. 19.225.1 × 10 =
  20. 20.201.1 × 1000 =
  21. 21.298.9 × 1000 =
  22. 22.95.9 × 10 =
  23. 23.222.5 × 1000 =
  24. 24.21.15 ÷ 10 =
  25. 25.62.5 ÷ 10 =
  26. 26.161.9 ÷ 10 =
  27. 27.252.1 ÷ 100 =
  28. 28.417.9 × 10 =
  29. 29.220.8 × 10 =
  30. 30.11.01 × 100 =
  31. 31.49.13 ÷ 10 =
  32. 32.20.16 ÷ 1000 =
  33. 33.14.71 × 10 =
  34. 34.5.85 ÷ 10 =
  35. 35.452.1 × 10 =
  36. 36.373.8 ÷ 1000 =
  37. 37.96.6 ÷ 10 =
  38. 38.15.61 × 100 =
  39. 39.307.2 ÷ 100 =
  40. 40.463.1 × 10 =

Answer key

  1. 0.0201
  2. 6150
  3. 0.01407
  4. 0.01238
  5. 0.01103
  6. 4934
  7. 2598
  8. 38850
  9. 32430
  10. 12310
  11. 64500
  12. 653
  13. 0.04377
  14. 48
  15. 0.00335
  16. 301.1
  17. 0.252
  18. 0.3593
  19. 2251
  20. 201100
  21. 298900
  22. 959
  23. 222500
  24. 2.115
  25. 6.25
  26. 16.19
  27. 2.521
  28. 4179
  29. 2208
  30. 1101
  31. 4.913
  32. 0.02016
  33. 147.1
  34. 0.585
  35. 4521
  36. 0.3738
  37. 9.66
  38. 1561
  39. 3.072
  40. 4631

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