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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 658 · 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. 1.28.74 ÷ 10 =
  2. 2.16.15 ÷ 1000 =
  3. 3.311.5 ÷ 100 =
  4. 4.24.39 ÷ 1000 =
  5. 5.450.3 × 10 =
  6. 6.23.8 × 1000 =
  7. 7.9.12 ÷ 1000 =
  8. 8.75.1 × 1000 =
  9. 9.12.88 ÷ 1000 =
  10. 10.47.76 ÷ 10 =
  11. 11.43.85 × 1000 =
  12. 12.43.96 ÷ 1000 =
  13. 13.13.01 ÷ 100 =
  14. 14.273.6 ÷ 10 =
  15. 15.66.1 × 10 =
  16. 16.87.6 ÷ 1000 =
  17. 17.120.3 × 100 =
  18. 18.330.1 × 10 =
  19. 19.317.7 × 1000 =
  20. 20.13.34 × 1000 =
  21. 21.35.19 ÷ 10 =
  22. 22.467.5 ÷ 10 =
  23. 23.46.75 ÷ 100 =
  24. 24.469.2 × 10 =
  25. 25.199.5 × 1000 =
  26. 26.492.4 ÷ 1000 =
  27. 27.10.97 ÷ 100 =
  28. 28.4.15 × 10 =
  29. 29.277.1 ÷ 10 =
  30. 30.20.28 ÷ 1000 =
  31. 31.53.8 ÷ 100 =
  32. 32.33.15 ÷ 10 =
  33. 33.402.9 ÷ 1000 =
  34. 34.142.5 × 100 =
  35. 35.198.5 ÷ 10 =
  36. 36.39.53 ÷ 10 =
  37. 37.4.64 × 100 =
  38. 38.162.1 ÷ 100 =
  39. 39.313.2 × 10 =
  40. 40.31.24 × 10 =

Answer key

  1. 2.874
  2. 0.01615
  3. 3.115
  4. 0.02439
  5. 4503
  6. 23800
  7. 0.00912
  8. 75100
  9. 0.01288
  10. 4.776
  11. 43850
  12. 0.04396
  13. 0.1301
  14. 27.36
  15. 661
  16. 0.0876
  17. 12030
  18. 3301
  19. 317700
  20. 13340
  21. 3.519
  22. 46.75
  23. 0.4675
  24. 4692
  25. 199500
  26. 0.4924
  27. 0.1097
  28. 41.5
  29. 27.71
  30. 0.02028
  31. 0.538
  32. 3.315
  33. 0.4029
  34. 14250
  35. 19.85
  36. 3.953
  37. 464
  38. 1.621
  39. 3132
  40. 312.4

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