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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 733 · 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. 1.105.6 ÷ 1000 =
  2. 2.8.74 ÷ 1000 =
  3. 3.9.95 ÷ 100 =
  4. 4.12.75 ÷ 10 =
  5. 5.403.5 × 100 =
  6. 6.30.69 ÷ 10 =
  7. 7.180.8 × 100 =
  8. 8.280.4 ÷ 1000 =
  9. 9.27.64 ÷ 100 =
  10. 10.29.65 × 1000 =
  11. 11.291.2 ÷ 1000 =
  12. 12.22.03 × 100 =
  13. 13.155.8 ÷ 10 =
  14. 14.459.1 ÷ 10 =
  15. 15.380.9 ÷ 10 =
  16. 16.53.7 ÷ 1000 =
  17. 17.13.83 × 10 =
  18. 18.450.6 × 100 =
  19. 19.40.19 ÷ 100 =
  20. 20.410.9 ÷ 10 =
  21. 21.37.41 ÷ 100 =
  22. 22.91.9 × 100 =
  23. 23.205.3 ÷ 1000 =
  24. 24.48.54 ÷ 1000 =
  25. 25.25.1 ÷ 10 =
  26. 26.25.34 ÷ 1000 =
  27. 27.104.4 × 100 =
  28. 28.26.39 × 100 =
  29. 29.490.8 × 10 =
  30. 30.221.5 ÷ 10 =
  31. 31.274.1 ÷ 100 =
  32. 32.48.35 × 10 =
  33. 33.146.1 × 100 =
  34. 34.275.8 × 1000 =
  35. 35.21.94 ÷ 10 =
  36. 36.162.6 ÷ 1000 =
  37. 37.32.65 ÷ 1000 =
  38. 38.459.9 × 10 =
  39. 39.42.31 × 100 =
  40. 40.48.9 × 10 =

Answer key

  1. 0.1056
  2. 0.00874
  3. 0.0995
  4. 1.275
  5. 40350
  6. 3.069
  7. 18080
  8. 0.2804
  9. 0.2764
  10. 29650
  11. 0.2912
  12. 2203
  13. 15.58
  14. 45.91
  15. 38.09
  16. 0.0537
  17. 138.3
  18. 45060
  19. 0.4019
  20. 41.09
  21. 0.3741
  22. 9190
  23. 0.2053
  24. 0.04854
  25. 2.51
  26. 0.02534
  27. 10440
  28. 2639
  29. 4908
  30. 22.15
  31. 2.741
  32. 483.5
  33. 14610
  34. 275800
  35. 2.194
  36. 0.1626
  37. 0.03265
  38. 4599
  39. 4231
  40. 489

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