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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 387 · 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. 1.207.1 ÷ 100 =
  2. 2.5.08 ÷ 1000 =
  3. 3.5.88 ÷ 10 =
  4. 4.37.61 × 1000 =
  5. 5.183.6 × 1000 =
  6. 6.424.4 × 100 =
  7. 7.306.1 ÷ 100 =
  8. 8.24.35 × 10 =
  9. 9.2.04 × 100 =
  10. 10.27.88 × 100 =
  11. 11.28.26 × 1000 =
  12. 12.290.6 × 10 =
  13. 13.40.33 × 1000 =
  14. 14.5.28 ÷ 10 =
  15. 15.16.78 ÷ 1000 =
  16. 16.261.5 ÷ 100 =
  17. 17.11.92 × 1000 =
  18. 18.27.88 ÷ 1000 =
  19. 19.468.9 × 10 =
  20. 20.305.3 × 1000 =
  21. 21.101.2 × 100 =
  22. 22.194.8 × 1000 =
  23. 23.199.5 ÷ 10 =
  24. 24.353.1 ÷ 1000 =
  25. 25.329.3 × 10 =
  26. 26.38.41 × 100 =
  27. 27.18.39 × 1000 =
  28. 28.14.09 × 10 =
  29. 29.28.54 × 10 =
  30. 30.12.88 ÷ 10 =
  31. 31.38.16 × 1000 =
  32. 32.397.5 ÷ 10 =
  33. 33.278.3 × 1000 =
  34. 34.9.77 ÷ 10 =
  35. 35.364.2 × 10 =
  36. 36.431.5 × 10 =
  37. 37.30.9 ÷ 100 =
  38. 38.24.32 × 1000 =
  39. 39.32.5 × 10 =
  40. 40.439.4 × 10 =

Answer key

  1. 2.071
  2. 0.00508
  3. 0.588
  4. 37610
  5. 183600
  6. 42440
  7. 3.061
  8. 243.5
  9. 204
  10. 2788
  11. 28260
  12. 2906
  13. 40330
  14. 0.528
  15. 0.01678
  16. 2.615
  17. 11920
  18. 0.02788
  19. 4689
  20. 305300
  21. 10120
  22. 194800
  23. 19.95
  24. 0.3531
  25. 3293
  26. 3841
  27. 18390
  28. 140.9
  29. 285.4
  30. 1.288
  31. 38160
  32. 39.75
  33. 278300
  34. 0.977
  35. 3642
  36. 4315
  37. 0.309
  38. 24320
  39. 325
  40. 4394

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