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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 789 · 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. 1.270.6 × 100 =
  2. 2.196.2 ÷ 100 =
  3. 3.327.3 ÷ 1000 =
  4. 4.40.82 ÷ 10 =
  5. 5.407.9 × 10 =
  6. 6.330.7 × 1000 =
  7. 7.436.1 ÷ 1000 =
  8. 8.7.1 × 1000 =
  9. 9.15.45 × 10 =
  10. 10.89.4 × 10 =
  11. 11.34.14 ÷ 100 =
  12. 12.266.6 ÷ 10 =
  13. 13.48.58 ÷ 1000 =
  14. 14.154.7 ÷ 1000 =
  15. 15.47.94 × 100 =
  16. 16.22.97 ÷ 10 =
  17. 17.429.9 × 100 =
  18. 18.370.3 × 10 =
  19. 19.22.95 × 100 =
  20. 20.37.91 ÷ 10 =
  21. 21.39.91 ÷ 1000 =
  22. 22.276.9 × 1000 =
  23. 23.251.5 × 1000 =
  24. 24.4.92 × 10 =
  25. 25.258.5 ÷ 1000 =
  26. 26.1.67 ÷ 10 =
  27. 27.11.33 × 100 =
  28. 28.25.62 × 100 =
  29. 29.434.2 × 10 =
  30. 30.30.07 ÷ 10 =
  31. 31.18.7 × 100 =
  32. 32.38.7 × 10 =
  33. 33.21.26 × 10 =
  34. 34.34.96 × 100 =
  35. 35.49.85 ÷ 10 =
  36. 36.198.8 ÷ 10 =
  37. 37.10.48 ÷ 1000 =
  38. 38.6.71 ÷ 100 =
  39. 39.190.5 × 10 =
  40. 40.33.74 ÷ 100 =

Answer key

  1. 27060
  2. 1.962
  3. 0.3273
  4. 4.082
  5. 4079
  6. 330700
  7. 0.4361
  8. 7100
  9. 154.5
  10. 894
  11. 0.3414
  12. 26.66
  13. 0.04858
  14. 0.1547
  15. 4794
  16. 2.297
  17. 42990
  18. 3703
  19. 2295
  20. 3.791
  21. 0.03991
  22. 276900
  23. 251500
  24. 49.2
  25. 0.2585
  26. 0.167
  27. 1133
  28. 2562
  29. 4342
  30. 3.007
  31. 1870
  32. 387
  33. 212.6
  34. 3496
  35. 4.985
  36. 19.88
  37. 0.01048
  38. 0.0671
  39. 1905
  40. 0.3374

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