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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 436 · 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. 1.249.7 × 1000 =
  2. 2.466.7 ÷ 1000 =
  3. 3.23.59 ÷ 10 =
  4. 4.49.58 × 100 =
  5. 5.84.2 × 1000 =
  6. 6.475.6 × 100 =
  7. 7.297.8 ÷ 10 =
  8. 8.10.9 ÷ 100 =
  9. 9.73.8 ÷ 10 =
  10. 10.286.6 ÷ 10 =
  11. 11.13.45 ÷ 100 =
  12. 12.4.7 ÷ 10 =
  13. 13.40.16 ÷ 1000 =
  14. 14.39.3 ÷ 10 =
  15. 15.397.6 × 100 =
  16. 16.79.2 ÷ 1000 =
  17. 17.37.71 × 10 =
  18. 18.63.9 × 100 =
  19. 19.359.4 ÷ 10 =
  20. 20.9.25 × 100 =
  21. 21.467.3 × 1000 =
  22. 22.78.3 ÷ 1000 =
  23. 23.112.1 × 100 =
  24. 24.386.9 × 10 =
  25. 25.33.25 × 100 =
  26. 26.293.6 × 1000 =
  27. 27.40.47 ÷ 100 =
  28. 28.10.38 × 100 =
  29. 29.435.5 × 100 =
  30. 30.386.6 ÷ 100 =
  31. 31.11.12 × 100 =
  32. 32.136.5 × 10 =
  33. 33.46.8 × 100 =
  34. 34.213.5 ÷ 1000 =
  35. 35.360.5 ÷ 1000 =
  36. 36.28.08 ÷ 1000 =
  37. 37.32.2 ÷ 1000 =
  38. 38.130.3 ÷ 100 =
  39. 39.36.55 × 1000 =
  40. 40.13.83 ÷ 10 =

Answer key

  1. 249700
  2. 0.4667
  3. 2.359
  4. 4958
  5. 84200
  6. 47560
  7. 29.78
  8. 0.109
  9. 7.38
  10. 28.66
  11. 0.1345
  12. 0.47
  13. 0.04016
  14. 3.93
  15. 39760
  16. 0.0792
  17. 377.1
  18. 6390
  19. 35.94
  20. 925
  21. 467300
  22. 0.0783
  23. 11210
  24. 3869
  25. 3325
  26. 293600
  27. 0.4047
  28. 1038
  29. 43550
  30. 3.866
  31. 1112
  32. 1365
  33. 4680
  34. 0.2135
  35. 0.3605
  36. 0.02808
  37. 0.0322
  38. 1.303
  39. 36550
  40. 1.383

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