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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 740 · 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. 1.40.98 ÷ 10 =
  2. 2.183.1 × 1000 =
  3. 3.420.7 ÷ 10 =
  4. 4.432.2 ÷ 100 =
  5. 5.36.16 × 100 =
  6. 6.399.5 × 1000 =
  7. 7.89.9 ÷ 10 =
  8. 8.44.41 × 10 =
  9. 9.303.6 × 100 =
  10. 10.13.13 ÷ 100 =
  11. 11.56.7 × 1000 =
  12. 12.365.9 ÷ 100 =
  13. 13.168.8 ÷ 100 =
  14. 14.388.9 ÷ 10 =
  15. 15.131.3 ÷ 100 =
  16. 16.33.74 × 10 =
  17. 17.37.41 ÷ 10 =
  18. 18.47.01 ÷ 10 =
  19. 19.15.21 × 10 =
  20. 20.411.7 ÷ 1000 =
  21. 21.117.8 ÷ 100 =
  22. 22.161.1 ÷ 10 =
  23. 23.82.3 ÷ 10 =
  24. 24.44.93 ÷ 1000 =
  25. 25.19.48 ÷ 1000 =
  26. 26.472.3 ÷ 100 =
  27. 27.489.1 ÷ 10 =
  28. 28.35.79 × 1000 =
  29. 29.67.1 ÷ 100 =
  30. 30.40.86 × 10 =
  31. 31.82.2 × 100 =
  32. 32.10.11 ÷ 1000 =
  33. 33.177.5 × 10 =
  34. 34.41.53 ÷ 10 =
  35. 35.23.39 × 100 =
  36. 36.13.81 × 100 =
  37. 37.14.72 × 10 =
  38. 38.7.91 ÷ 100 =
  39. 39.5.71 × 10 =
  40. 40.31.92 × 100 =

Answer key

  1. 4.098
  2. 183100
  3. 42.07
  4. 4.322
  5. 3616
  6. 399500
  7. 8.99
  8. 444.1
  9. 30360
  10. 0.1313
  11. 56700
  12. 3.659
  13. 1.688
  14. 38.89
  15. 1.313
  16. 337.4
  17. 3.741
  18. 4.701
  19. 152.1
  20. 0.4117
  21. 1.178
  22. 16.11
  23. 8.23
  24. 0.04493
  25. 0.01948
  26. 4.723
  27. 48.91
  28. 35790
  29. 0.671
  30. 408.6
  31. 8220
  32. 0.01011
  33. 1775
  34. 4.153
  35. 2339
  36. 1381
  37. 147.2
  38. 0.0791
  39. 57.1
  40. 3192

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