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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 55 · 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. 1.258.8 ÷ 10 =
  2. 2.12.95 × 10 =
  3. 3.33.79 ÷ 100 =
  4. 4.15.97 × 1000 =
  5. 5.430.3 ÷ 100 =
  6. 6.8.14 × 100 =
  7. 7.20.7 × 10 =
  8. 8.157.3 ÷ 1000 =
  9. 9.80.8 × 100 =
  10. 10.70.9 ÷ 100 =
  11. 11.131.8 ÷ 100 =
  12. 12.43.31 ÷ 10 =
  13. 13.46.74 × 10 =
  14. 14.10.71 × 100 =
  15. 15.48.1 × 10 =
  16. 16.483.6 ÷ 10 =
  17. 17.4.98 ÷ 100 =
  18. 18.209.2 ÷ 10 =
  19. 19.141.7 ÷ 1000 =
  20. 20.497.4 × 100 =
  21. 21.24.64 × 100 =
  22. 22.4.14 ÷ 100 =
  23. 23.329.5 × 1000 =
  24. 24.276.1 × 1000 =
  25. 25.446.7 ÷ 100 =
  26. 26.21.19 ÷ 1000 =
  27. 27.409.6 × 10 =
  28. 28.8.36 × 1000 =
  29. 29.47.4 × 10 =
  30. 30.87.4 × 10 =
  31. 31.461.9 × 100 =
  32. 32.244.1 × 10 =
  33. 33.5.9 × 1000 =
  34. 34.85.7 ÷ 100 =
  35. 35.38.67 × 10 =
  36. 36.52.5 ÷ 10 =
  37. 37.47.1 × 10 =
  38. 38.150.4 ÷ 1000 =
  39. 39.326.3 ÷ 100 =
  40. 40.33.87 × 10 =

Answer key

  1. 25.88
  2. 129.5
  3. 0.3379
  4. 15970
  5. 4.303
  6. 814
  7. 207
  8. 0.1573
  9. 8080
  10. 0.709
  11. 1.318
  12. 4.331
  13. 467.4
  14. 1071
  15. 481
  16. 48.36
  17. 0.0498
  18. 20.92
  19. 0.1417
  20. 49740
  21. 2464
  22. 0.0414
  23. 329500
  24. 276100
  25. 4.467
  26. 0.02119
  27. 4096
  28. 8360
  29. 474
  30. 874
  31. 46190
  32. 2441
  33. 5900
  34. 0.857
  35. 386.7
  36. 5.25
  37. 471
  38. 0.1504
  39. 3.263
  40. 338.7

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