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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 995 · 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. 1.35.46 ÷ 10 =
  2. 2.387.1 × 10 =
  3. 3.90.4 ÷ 10 =
  4. 4.354.1 ÷ 100 =
  5. 5.257.9 ÷ 1000 =
  6. 6.151.4 × 100 =
  7. 7.19.83 × 100 =
  8. 8.65.9 × 1000 =
  9. 9.33.52 × 10 =
  10. 10.38.7 ÷ 10 =
  11. 11.183.2 ÷ 10 =
  12. 12.313.8 × 10 =
  13. 13.13.56 ÷ 100 =
  14. 14.6.46 × 1000 =
  15. 15.105.6 ÷ 1000 =
  16. 16.16.43 ÷ 10 =
  17. 17.101.4 × 10 =
  18. 18.10.73 ÷ 1000 =
  19. 19.179.6 ÷ 1000 =
  20. 20.45.15 × 1000 =
  21. 21.8.81 ÷ 100 =
  22. 22.42.81 ÷ 100 =
  23. 23.18.01 × 100 =
  24. 24.102.7 ÷ 1000 =
  25. 25.208.1 × 1000 =
  26. 26.15.29 ÷ 10 =
  27. 27.20.01 × 1000 =
  28. 28.30.41 × 10 =
  29. 29.41.53 × 100 =
  30. 30.49.02 ÷ 100 =
  31. 31.17.64 ÷ 1000 =
  32. 32.13.88 ÷ 10 =
  33. 33.25.81 × 100 =
  34. 34.47.48 × 1000 =
  35. 35.11.41 × 100 =
  36. 36.175.1 × 100 =
  37. 37.47.12 × 10 =
  38. 38.414.8 ÷ 1000 =
  39. 39.419.9 × 100 =
  40. 40.60.5 ÷ 10 =

Answer key

  1. 3.546
  2. 3871
  3. 9.04
  4. 3.541
  5. 0.2579
  6. 15140
  7. 1983
  8. 65900
  9. 335.2
  10. 3.87
  11. 18.32
  12. 3138
  13. 0.1356
  14. 6460
  15. 0.1056
  16. 1.643
  17. 1014
  18. 0.01073
  19. 0.1796
  20. 45150
  21. 0.0881
  22. 0.4281
  23. 1801
  24. 0.1027
  25. 208100
  26. 1.529
  27. 20010
  28. 304.1
  29. 4153
  30. 0.4902
  31. 0.01764
  32. 1.388
  33. 2581
  34. 47480
  35. 1141
  36. 17510
  37. 471.2
  38. 0.4148
  39. 41990
  40. 6.05

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