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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 182 · 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. 1.395.2 ÷ 1000 =
  2. 2.199.6 × 100 =
  3. 3.351.8 ÷ 10 =
  4. 4.32.2 ÷ 10 =
  5. 5.239.8 × 1000 =
  6. 6.58.4 × 1000 =
  7. 7.357.7 × 1000 =
  8. 8.40.77 × 1000 =
  9. 9.382.3 ÷ 10 =
  10. 10.49.51 × 10 =
  11. 11.22.03 ÷ 100 =
  12. 12.14.14 ÷ 100 =
  13. 13.214.5 ÷ 10 =
  14. 14.285.3 × 1000 =
  15. 15.16.74 × 10 =
  16. 16.44.51 × 1000 =
  17. 17.30.01 × 10 =
  18. 18.161.9 × 10 =
  19. 19.124.9 ÷ 10 =
  20. 20.324.7 ÷ 10 =
  21. 21.24.21 × 10 =
  22. 22.10.13 × 100 =
  23. 23.230.1 × 1000 =
  24. 24.13.74 ÷ 100 =
  25. 25.45.24 ÷ 100 =
  26. 26.11.49 × 100 =
  27. 27.49.18 ÷ 10 =
  28. 28.10.57 × 10 =
  29. 29.44.83 ÷ 10 =
  30. 30.179.1 × 100 =
  31. 31.43.87 ÷ 100 =
  32. 32.313.7 × 1000 =
  33. 33.326.3 × 100 =
  34. 34.326.4 × 10 =
  35. 35.10.36 ÷ 10 =
  36. 36.44.77 ÷ 100 =
  37. 37.14.08 ÷ 1000 =
  38. 38.0.15 ÷ 10 =
  39. 39.48.7 × 1000 =
  40. 40.341.5 × 100 =

Answer key

  1. 0.3952
  2. 19960
  3. 35.18
  4. 3.22
  5. 239800
  6. 58400
  7. 357700
  8. 40770
  9. 38.23
  10. 495.1
  11. 0.2203
  12. 0.1414
  13. 21.45
  14. 285300
  15. 167.4
  16. 44510
  17. 300.1
  18. 1619
  19. 12.49
  20. 32.47
  21. 242.1
  22. 1013
  23. 230100
  24. 0.1374
  25. 0.4524
  26. 1149
  27. 4.918
  28. 105.7
  29. 4.483
  30. 17910
  31. 0.4387
  32. 313700
  33. 32630
  34. 3264
  35. 1.036
  36. 0.4477
  37. 0.01408
  38. 0.015
  39. 48700
  40. 34150

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