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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 118 · 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. 1.41.35 × 1000 =
  2. 2.46.45 ÷ 100 =
  3. 3.298.2 ÷ 100 =
  4. 4.35.37 ÷ 100 =
  5. 5.10.69 ÷ 10 =
  6. 6.44.88 ÷ 1000 =
  7. 7.466.7 × 100 =
  8. 8.228.7 ÷ 10 =
  9. 9.26.39 ÷ 100 =
  10. 10.4.36 × 100 =
  11. 11.19.4 ÷ 10 =
  12. 12.13.11 × 10 =
  13. 13.234.9 × 1000 =
  14. 14.117.5 ÷ 1000 =
  15. 15.15.41 ÷ 100 =
  16. 16.95.4 ÷ 10 =
  17. 17.45.07 ÷ 1000 =
  18. 18.466.4 × 1000 =
  19. 19.147.8 × 1000 =
  20. 20.17.4 × 1000 =
  21. 21.5.87 ÷ 10 =
  22. 22.275.7 ÷ 10 =
  23. 23.25.11 × 10 =
  24. 24.330.2 × 1000 =
  25. 25.13.41 × 100 =
  26. 26.47.12 × 10 =
  27. 27.24.79 × 10 =
  28. 28.103.1 ÷ 1000 =
  29. 29.60.1 × 10 =
  30. 30.43.6 × 1000 =
  31. 31.211.7 × 10 =
  32. 32.93.5 × 10 =
  33. 33.17.37 ÷ 1000 =
  34. 34.16.9 × 1000 =
  35. 35.27.83 × 1000 =
  36. 36.0.17 × 100 =
  37. 37.4.07 × 100 =
  38. 38.128.9 × 1000 =
  39. 39.31.8 × 1000 =
  40. 40.93.7 × 1000 =

Answer key

  1. 41350
  2. 0.4645
  3. 2.982
  4. 0.3537
  5. 1.069
  6. 0.04488
  7. 46670
  8. 22.87
  9. 0.2639
  10. 436
  11. 1.94
  12. 131.1
  13. 234900
  14. 0.1175
  15. 0.1541
  16. 9.54
  17. 0.04507
  18. 466400
  19. 147800
  20. 17400
  21. 0.587
  22. 27.57
  23. 251.1
  24. 330200
  25. 1341
  26. 471.2
  27. 247.9
  28. 0.1031
  29. 601
  30. 43600
  31. 2117
  32. 935
  33. 0.01737
  34. 16900
  35. 27830
  36. 17
  37. 407
  38. 128900
  39. 31800
  40. 93700

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