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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 817 · 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. 1.16.29 ÷ 1000 =
  2. 2.146.7 × 100 =
  3. 3.43.39 × 10 =
  4. 4.90.9 ÷ 100 =
  5. 5.36.24 × 100 =
  6. 6.40.9 ÷ 1000 =
  7. 7.30.61 ÷ 1000 =
  8. 8.450.5 × 10 =
  9. 9.241.2 ÷ 10 =
  10. 10.316.1 ÷ 10 =
  11. 11.276.1 × 100 =
  12. 12.19.66 × 1000 =
  13. 13.106.1 × 10 =
  14. 14.12.46 ÷ 100 =
  15. 15.35.41 × 1000 =
  16. 16.349.8 ÷ 100 =
  17. 17.3.66 ÷ 1000 =
  18. 18.324.1 ÷ 1000 =
  19. 19.1.55 × 1000 =
  20. 20.30.93 × 1000 =
  21. 21.37.56 × 1000 =
  22. 22.14.31 ÷ 100 =
  23. 23.415.2 ÷ 100 =
  24. 24.23.64 ÷ 10 =
  25. 25.472.9 ÷ 10 =
  26. 26.21.83 ÷ 1000 =
  27. 27.12.92 × 100 =
  28. 28.184.9 ÷ 1000 =
  29. 29.31.16 × 1000 =
  30. 30.98.4 × 10 =
  31. 31.41.91 × 1000 =
  32. 32.84.1 ÷ 100 =
  33. 33.104.1 × 100 =
  34. 34.222.1 × 10 =
  35. 35.48.03 ÷ 10 =
  36. 36.196.1 ÷ 1000 =
  37. 37.17.69 ÷ 1000 =
  38. 38.0.76 × 1000 =
  39. 39.365.7 × 10 =
  40. 40.43.41 × 10 =

Answer key

  1. 0.01629
  2. 14670
  3. 433.9
  4. 0.909
  5. 3624
  6. 0.0409
  7. 0.03061
  8. 4505
  9. 24.12
  10. 31.61
  11. 27610
  12. 19660
  13. 1061
  14. 0.1246
  15. 35410
  16. 3.498
  17. 0.00366
  18. 0.3241
  19. 1550
  20. 30930
  21. 37560
  22. 0.1431
  23. 4.152
  24. 2.364
  25. 47.29
  26. 0.02183
  27. 1292
  28. 0.1849
  29. 31160
  30. 984
  31. 41910
  32. 0.841
  33. 10410
  34. 2221
  35. 4.803
  36. 0.1961
  37. 0.01769
  38. 760
  39. 3657
  40. 434.1

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