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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 275 · 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. 1.272.5 × 1000 =
  2. 2.434.2 ÷ 100 =
  3. 3.43.38 ÷ 1000 =
  4. 4.30.8 × 1000 =
  5. 5.172.8 ÷ 10 =
  6. 6.85.1 ÷ 10 =
  7. 7.20.35 × 100 =
  8. 8.6.73 × 10 =
  9. 9.10.01 ÷ 10 =
  10. 10.367.4 × 100 =
  11. 11.38.51 × 1000 =
  12. 12.17.08 × 10 =
  13. 13.27.91 ÷ 100 =
  14. 14.237.8 ÷ 10 =
  15. 15.40.21 × 1000 =
  16. 16.20.03 ÷ 100 =
  17. 17.2.89 ÷ 10 =
  18. 18.139.9 × 100 =
  19. 19.33.31 ÷ 1000 =
  20. 20.17.52 × 100 =
  21. 21.142.4 × 10 =
  22. 22.194.4 ÷ 10 =
  23. 23.433.1 ÷ 10 =
  24. 24.49.32 ÷ 100 =
  25. 25.12.5 ÷ 1000 =
  26. 26.32.63 ÷ 1000 =
  27. 27.319.1 ÷ 1000 =
  28. 28.352.3 ÷ 100 =
  29. 29.16.18 × 1000 =
  30. 30.420.5 ÷ 1000 =
  31. 31.14.2 ÷ 1000 =
  32. 32.43.02 × 100 =
  33. 33.275.6 ÷ 100 =
  34. 34.273.1 ÷ 1000 =
  35. 35.3.4 × 10 =
  36. 36.3.08 ÷ 1000 =
  37. 37.30.23 ÷ 100 =
  38. 38.224.4 × 10 =
  39. 39.142.2 ÷ 10 =
  40. 40.85.6 ÷ 100 =

Answer key

  1. 272500
  2. 4.342
  3. 0.04338
  4. 30800
  5. 17.28
  6. 8.51
  7. 2035
  8. 67.3
  9. 1.001
  10. 36740
  11. 38510
  12. 170.8
  13. 0.2791
  14. 23.78
  15. 40210
  16. 0.2003
  17. 0.289
  18. 13990
  19. 0.03331
  20. 1752
  21. 1424
  22. 19.44
  23. 43.31
  24. 0.4932
  25. 0.0125
  26. 0.03263
  27. 0.3191
  28. 3.523
  29. 16180
  30. 0.4205
  31. 0.0142
  32. 4302
  33. 2.756
  34. 0.2731
  35. 34
  36. 0.00308
  37. 0.3023
  38. 2244
  39. 14.22
  40. 0.856

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