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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 473 · 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. 1.274.9 × 100 =
  2. 2.198.6 × 100 =
  3. 3.195.9 ÷ 100 =
  4. 4.1.12 ÷ 1000 =
  5. 5.47.47 × 10 =
  6. 6.13.65 ÷ 1000 =
  7. 7.25.19 ÷ 10 =
  8. 8.483.2 ÷ 10 =
  9. 9.146.9 × 10 =
  10. 10.40.01 × 100 =
  11. 11.0.98 ÷ 10 =
  12. 12.113.2 ÷ 10 =
  13. 13.61.9 ÷ 1000 =
  14. 14.10.75 × 100 =
  15. 15.357.7 ÷ 1000 =
  16. 16.17.76 × 10 =
  17. 17.44.86 ÷ 10 =
  18. 18.35.92 ÷ 100 =
  19. 19.7.55 × 10 =
  20. 20.20.85 ÷ 100 =
  21. 21.461.7 ÷ 10 =
  22. 22.18.69 × 1000 =
  23. 23.414.9 × 10 =
  24. 24.388.4 × 10 =
  25. 25.28.41 ÷ 1000 =
  26. 26.266.5 ÷ 1000 =
  27. 27.391.9 ÷ 10 =
  28. 28.485.1 × 100 =
  29. 29.303.3 × 100 =
  30. 30.67.2 × 1000 =
  31. 31.450.7 × 1000 =
  32. 32.181.7 ÷ 1000 =
  33. 33.24.92 × 1000 =
  34. 34.191.1 ÷ 10 =
  35. 35.3.27 ÷ 10 =
  36. 36.11.41 ÷ 100 =
  37. 37.24.92 ÷ 1000 =
  38. 38.373.7 × 100 =
  39. 39.310.3 ÷ 1000 =
  40. 40.475.3 × 10 =

Answer key

  1. 27490
  2. 19860
  3. 1.959
  4. 0.00112
  5. 474.7
  6. 0.01365
  7. 2.519
  8. 48.32
  9. 1469
  10. 4001
  11. 0.098
  12. 11.32
  13. 0.0619
  14. 1075
  15. 0.3577
  16. 177.6
  17. 4.486
  18. 0.3592
  19. 75.5
  20. 0.2085
  21. 46.17
  22. 18690
  23. 4149
  24. 3884
  25. 0.02841
  26. 0.2665
  27. 39.19
  28. 48510
  29. 30330
  30. 67200
  31. 450700
  32. 0.1817
  33. 24920
  34. 19.11
  35. 0.327
  36. 0.1141
  37. 0.02492
  38. 37370
  39. 0.3103
  40. 4753

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