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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 274 · 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. 1.49.61 ÷ 100 =
  2. 2.6.97 ÷ 100 =
  3. 3.142.7 × 10 =
  4. 4.33.98 × 1000 =
  5. 5.18.17 × 100 =
  6. 6.27.34 × 10 =
  7. 7.101.9 × 10 =
  8. 8.49.16 × 1000 =
  9. 9.33.77 × 10 =
  10. 10.34.31 × 100 =
  11. 11.193.9 ÷ 100 =
  12. 12.22.29 ÷ 1000 =
  13. 13.10.01 ÷ 10 =
  14. 14.101.3 × 10 =
  15. 15.181.9 × 1000 =
  16. 16.2.04 ÷ 1000 =
  17. 17.41.51 × 10 =
  18. 18.18.29 × 10 =
  19. 19.22.08 × 10 =
  20. 20.47.86 × 1000 =
  21. 21.20.6 × 1000 =
  22. 22.27.88 × 10 =
  23. 23.35.01 × 10 =
  24. 24.12.17 × 1000 =
  25. 25.34.56 × 100 =
  26. 26.296.1 × 1000 =
  27. 27.210.1 ÷ 1000 =
  28. 28.381.8 × 100 =
  29. 29.287.3 ÷ 10 =
  30. 30.360.5 ÷ 1000 =
  31. 31.6.01 × 100 =
  32. 32.21.23 × 10 =
  33. 33.278.9 ÷ 1000 =
  34. 34.209.7 ÷ 100 =
  35. 35.9.6 ÷ 10 =
  36. 36.127.1 × 1000 =
  37. 37.394.8 × 100 =
  38. 38.259.9 × 10 =
  39. 39.371.1 × 1000 =
  40. 40.46.48 ÷ 1000 =

Answer key

  1. 0.4961
  2. 0.0697
  3. 1427
  4. 33980
  5. 1817
  6. 273.4
  7. 1019
  8. 49160
  9. 337.7
  10. 3431
  11. 1.939
  12. 0.02229
  13. 1.001
  14. 1013
  15. 181900
  16. 0.00204
  17. 415.1
  18. 182.9
  19. 220.8
  20. 47860
  21. 20600
  22. 278.8
  23. 350.1
  24. 12170
  25. 3456
  26. 296100
  27. 0.2101
  28. 38180
  29. 28.73
  30. 0.3605
  31. 601
  32. 212.3
  33. 0.2789
  34. 2.097
  35. 0.96
  36. 127100
  37. 39480
  38. 2599
  39. 371100
  40. 0.04648

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