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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 358 · 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. 1.45.97 ÷ 100 =
  2. 2.85.9 × 10 =
  3. 3.383.3 ÷ 1000 =
  4. 4.13.03 ÷ 10 =
  5. 5.5.21 × 100 =
  6. 6.240.4 × 10 =
  7. 7.2.45 × 10 =
  8. 8.2.54 ÷ 10 =
  9. 9.30.94 ÷ 1000 =
  10. 10.129.7 ÷ 1000 =
  11. 11.38.73 × 1000 =
  12. 12.1.38 ÷ 1000 =
  13. 13.15.07 ÷ 10 =
  14. 14.25.77 × 1000 =
  15. 15.41.3 ÷ 100 =
  16. 16.13.81 × 100 =
  17. 17.259.2 ÷ 1000 =
  18. 18.1.33 × 100 =
  19. 19.468.4 × 100 =
  20. 20.393.1 ÷ 100 =
  21. 21.261.1 × 100 =
  22. 22.154.8 × 10 =
  23. 23.199.7 × 1000 =
  24. 24.36.77 × 100 =
  25. 25.54.2 ÷ 1000 =
  26. 26.433.2 ÷ 1000 =
  27. 27.18.15 × 10 =
  28. 28.333.3 ÷ 100 =
  29. 29.41.39 ÷ 100 =
  30. 30.36.9 ÷ 100 =
  31. 31.20.76 × 10 =
  32. 32.31.87 ÷ 100 =
  33. 33.468.1 × 100 =
  34. 34.31.31 ÷ 1000 =
  35. 35.474.3 × 10 =
  36. 36.159.2 × 1000 =
  37. 37.16.14 ÷ 100 =
  38. 38.129.1 ÷ 10 =
  39. 39.0.75 × 100 =
  40. 40.482.6 ÷ 100 =

Answer key

  1. 0.4597
  2. 859
  3. 0.3833
  4. 1.303
  5. 521
  6. 2404
  7. 24.5
  8. 0.254
  9. 0.03094
  10. 0.1297
  11. 38730
  12. 0.00138
  13. 1.507
  14. 25770
  15. 0.413
  16. 1381
  17. 0.2592
  18. 133
  19. 46840
  20. 3.931
  21. 26110
  22. 1548
  23. 199700
  24. 3677
  25. 0.0542
  26. 0.4332
  27. 181.5
  28. 3.333
  29. 0.4139
  30. 0.369
  31. 207.6
  32. 0.3187
  33. 46810
  34. 0.03131
  35. 4743
  36. 159200
  37. 0.1614
  38. 12.91
  39. 75
  40. 4.826

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