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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 609 · 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. 1.21.51 ÷ 1000 =
  2. 2.44.46 ÷ 100 =
  3. 3.46.39 ÷ 10 =
  4. 4.33.56 ÷ 1000 =
  5. 5.314.2 × 1000 =
  6. 6.22.21 ÷ 10 =
  7. 7.42.41 × 10 =
  8. 8.8.85 × 1000 =
  9. 9.141.1 × 1000 =
  10. 10.54.7 × 100 =
  11. 11.34.57 × 10 =
  12. 12.176.7 × 1000 =
  13. 13.4.86 × 100 =
  14. 14.47.08 ÷ 100 =
  15. 15.8.75 × 1000 =
  16. 16.21.79 × 1000 =
  17. 17.10.45 × 10 =
  18. 18.40.91 ÷ 1000 =
  19. 19.106.9 × 100 =
  20. 20.153.2 ÷ 1000 =
  21. 21.47.89 × 100 =
  22. 22.371.1 ÷ 1000 =
  23. 23.6.18 ÷ 100 =
  24. 24.54.2 × 1000 =
  25. 25.6.46 × 10 =
  26. 26.22.44 ÷ 1000 =
  27. 27.147.6 ÷ 1000 =
  28. 28.21.4 × 100 =
  29. 29.331.3 × 10 =
  30. 30.5.53 × 1000 =
  31. 31.26.1 ÷ 10 =
  32. 32.27.13 ÷ 100 =
  33. 33.12.33 × 1000 =
  34. 34.300.9 ÷ 10 =
  35. 35.11.69 × 100 =
  36. 36.16.83 × 1000 =
  37. 37.44.25 ÷ 10 =
  38. 38.46.44 ÷ 100 =
  39. 39.17.32 ÷ 10 =
  40. 40.495.2 ÷ 1000 =

Answer key

  1. 0.02151
  2. 0.4446
  3. 4.639
  4. 0.03356
  5. 314200
  6. 2.221
  7. 424.1
  8. 8850
  9. 141100
  10. 5470
  11. 345.7
  12. 176700
  13. 486
  14. 0.4708
  15. 8750
  16. 21790
  17. 104.5
  18. 0.04091
  19. 10690
  20. 0.1532
  21. 4789
  22. 0.3711
  23. 0.0618
  24. 54200
  25. 64.6
  26. 0.02244
  27. 0.1476
  28. 2140
  29. 3313
  30. 5530
  31. 2.61
  32. 0.2713
  33. 12330
  34. 30.09
  35. 1169
  36. 16830
  37. 4.425
  38. 0.4644
  39. 1.732
  40. 0.4952

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