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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 715 · 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. 1.33.93 × 100 =
  2. 2.19.1 × 1000 =
  3. 3.435.6 × 1000 =
  4. 4.292.2 × 10 =
  5. 5.39.76 ÷ 10 =
  6. 6.44.11 ÷ 100 =
  7. 7.438.1 × 100 =
  8. 8.13.21 ÷ 10 =
  9. 9.28.61 ÷ 1000 =
  10. 10.269.1 ÷ 100 =
  11. 11.219.3 × 1000 =
  12. 12.395.5 × 100 =
  13. 13.35.06 × 1000 =
  14. 14.206.5 ÷ 100 =
  15. 15.28.46 ÷ 100 =
  16. 16.293.2 × 10 =
  17. 17.22.93 ÷ 1000 =
  18. 18.162.8 ÷ 1000 =
  19. 19.162.3 × 100 =
  20. 20.17.61 × 10 =
  21. 21.19.12 × 10 =
  22. 22.11.91 ÷ 1000 =
  23. 23.9.92 ÷ 10 =
  24. 24.210.3 × 1000 =
  25. 25.385.2 ÷ 10 =
  26. 26.214.9 ÷ 10 =
  27. 27.313.7 ÷ 10 =
  28. 28.24.7 × 100 =
  29. 29.3.77 × 100 =
  30. 30.8.78 × 1000 =
  31. 31.20.42 × 1000 =
  32. 32.26.46 ÷ 1000 =
  33. 33.36.07 ÷ 1000 =
  34. 34.131.5 ÷ 1000 =
  35. 35.4.07 ÷ 10 =
  36. 36.487.7 × 1000 =
  37. 37.2.98 ÷ 1000 =
  38. 38.427.8 × 1000 =
  39. 39.37.7 ÷ 1000 =
  40. 40.1.57 ÷ 10 =

Answer key

  1. 3393
  2. 19100
  3. 435600
  4. 2922
  5. 3.976
  6. 0.4411
  7. 43810
  8. 1.321
  9. 0.02861
  10. 2.691
  11. 219300
  12. 39550
  13. 35060
  14. 2.065
  15. 0.2846
  16. 2932
  17. 0.02293
  18. 0.1628
  19. 16230
  20. 176.1
  21. 191.2
  22. 0.01191
  23. 0.992
  24. 210300
  25. 38.52
  26. 21.49
  27. 31.37
  28. 2470
  29. 377
  30. 8780
  31. 20420
  32. 0.02646
  33. 0.03607
  34. 0.1315
  35. 0.407
  36. 487700
  37. 0.00298
  38. 427800
  39. 0.0377
  40. 0.157

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