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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 477 · 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. 1.435.7 × 1000 =
  2. 2.176.7 × 1000 =
  3. 3.48.01 ÷ 100 =
  4. 4.53.2 × 1000 =
  5. 5.1.34 ÷ 10 =
  6. 6.22.44 ÷ 100 =
  7. 7.101.7 × 10 =
  8. 8.334.8 ÷ 100 =
  9. 9.25.64 ÷ 1000 =
  10. 10.2.98 ÷ 1000 =
  11. 11.25.66 ÷ 1000 =
  12. 12.27.37 × 100 =
  13. 13.17.01 × 10 =
  14. 14.453.1 × 100 =
  15. 15.279.1 ÷ 1000 =
  16. 16.40.89 ÷ 100 =
  17. 17.23.18 × 10 =
  18. 18.338.1 ÷ 1000 =
  19. 19.74.4 ÷ 10 =
  20. 20.21.76 ÷ 100 =
  21. 21.37.23 × 1000 =
  22. 22.421.2 ÷ 10 =
  23. 23.486.5 ÷ 10 =
  24. 24.316.4 × 10 =
  25. 25.208.1 ÷ 100 =
  26. 26.36.31 ÷ 100 =
  27. 27.326.1 × 1000 =
  28. 28.47.08 × 10 =
  29. 29.427.4 × 100 =
  30. 30.13.47 ÷ 1000 =
  31. 31.451.7 × 10 =
  32. 32.4.69 ÷ 100 =
  33. 33.45.97 × 10 =
  34. 34.453.9 × 10 =
  35. 35.27.86 ÷ 100 =
  36. 36.43.06 ÷ 1000 =
  37. 37.2.04 ÷ 1000 =
  38. 38.252.1 × 1000 =
  39. 39.297.3 × 10 =
  40. 40.11.82 ÷ 1000 =

Answer key

  1. 435700
  2. 176700
  3. 0.4801
  4. 53200
  5. 0.134
  6. 0.2244
  7. 1017
  8. 3.348
  9. 0.02564
  10. 0.00298
  11. 0.02566
  12. 2737
  13. 170.1
  14. 45310
  15. 0.2791
  16. 0.4089
  17. 231.8
  18. 0.3381
  19. 7.44
  20. 0.2176
  21. 37230
  22. 42.12
  23. 48.65
  24. 3164
  25. 2.081
  26. 0.3631
  27. 326100
  28. 470.8
  29. 42740
  30. 0.01347
  31. 4517
  32. 0.0469
  33. 459.7
  34. 4539
  35. 0.2786
  36. 0.04306
  37. 0.00204
  38. 252100
  39. 2973
  40. 0.01182

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