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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 607 · 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. 1.0.19 ÷ 1000 =
  2. 2.278.1 ÷ 1000 =
  3. 3.378.7 × 1000 =
  4. 4.443.5 × 100 =
  5. 5.488.8 × 1000 =
  6. 6.75.6 × 100 =
  7. 7.35.45 ÷ 10 =
  8. 8.269.9 ÷ 10 =
  9. 9.43.79 ÷ 10 =
  10. 10.49.17 ÷ 10 =
  11. 11.9.78 × 10 =
  12. 12.35.2 ÷ 10 =
  13. 13.38.11 ÷ 1000 =
  14. 14.5.39 × 100 =
  15. 15.39.58 ÷ 10 =
  16. 16.42.82 × 1000 =
  17. 17.21.44 ÷ 10 =
  18. 18.53.1 × 1000 =
  19. 19.340.7 × 100 =
  20. 20.248.5 × 100 =
  21. 21.3.57 × 10 =
  22. 22.451.3 × 1000 =
  23. 23.163.1 ÷ 10 =
  24. 24.10.07 ÷ 10 =
  25. 25.288.4 ÷ 100 =
  26. 26.294.6 ÷ 1000 =
  27. 27.46.07 × 100 =
  28. 28.434.8 ÷ 10 =
  29. 29.348.5 ÷ 10 =
  30. 30.23.91 × 100 =
  31. 31.23.33 ÷ 10 =
  32. 32.9.81 × 10 =
  33. 33.49.03 × 1000 =
  34. 34.34.19 × 10 =
  35. 35.37.31 × 100 =
  36. 36.89.7 × 100 =
  37. 37.276.9 × 1000 =
  38. 38.255.6 × 100 =
  39. 39.16.32 × 100 =
  40. 40.285.8 ÷ 100 =

Answer key

  1. 0.00019
  2. 0.2781
  3. 378700
  4. 44350
  5. 488800
  6. 7560
  7. 3.545
  8. 26.99
  9. 4.379
  10. 4.917
  11. 97.8
  12. 3.52
  13. 0.03811
  14. 539
  15. 3.958
  16. 42820
  17. 2.144
  18. 53100
  19. 34070
  20. 24850
  21. 35.7
  22. 451300
  23. 16.31
  24. 1.007
  25. 2.884
  26. 0.2946
  27. 4607
  28. 43.48
  29. 34.85
  30. 2391
  31. 2.333
  32. 98.1
  33. 49030
  34. 341.9
  35. 3731
  36. 8970
  37. 276900
  38. 25560
  39. 1632
  40. 2.858

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