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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 837 · 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. 1.473.5 ÷ 1000 =
  2. 2.4.83 × 10 =
  3. 3.1.81 × 10 =
  4. 4.352.4 × 1000 =
  5. 5.439.1 × 1000 =
  6. 6.138.3 × 10 =
  7. 7.49.86 × 1000 =
  8. 8.44.69 × 10 =
  9. 9.74.7 × 10 =
  10. 10.404.6 ÷ 1000 =
  11. 11.3.59 × 10 =
  12. 12.398.6 × 100 =
  13. 13.157.7 ÷ 1000 =
  14. 14.359.9 ÷ 100 =
  15. 15.121.5 × 10 =
  16. 16.470.7 ÷ 10 =
  17. 17.491.7 × 10 =
  18. 18.16.89 × 1000 =
  19. 19.22.03 ÷ 10 =
  20. 20.347.2 × 100 =
  21. 21.22.15 ÷ 10 =
  22. 22.34.47 ÷ 100 =
  23. 23.473.4 × 10 =
  24. 24.12.15 ÷ 100 =
  25. 25.192.2 ÷ 1000 =
  26. 26.45.59 ÷ 10 =
  27. 27.28.45 × 1000 =
  28. 28.43.71 ÷ 1000 =
  29. 29.314.5 × 10 =
  30. 30.212.5 × 10 =
  31. 31.28.6 × 100 =
  32. 32.73.1 × 10 =
  33. 33.3.35 ÷ 1000 =
  34. 34.46.96 ÷ 100 =
  35. 35.2.65 × 1000 =
  36. 36.13.62 ÷ 10 =
  37. 37.419.5 ÷ 1000 =
  38. 38.40.81 ÷ 1000 =
  39. 39.405.8 ÷ 1000 =
  40. 40.42.13 × 10 =

Answer key

  1. 0.4735
  2. 48.3
  3. 18.1
  4. 352400
  5. 439100
  6. 1383
  7. 49860
  8. 446.9
  9. 747
  10. 0.4046
  11. 35.9
  12. 39860
  13. 0.1577
  14. 3.599
  15. 1215
  16. 47.07
  17. 4917
  18. 16890
  19. 2.203
  20. 34720
  21. 2.215
  22. 0.3447
  23. 4734
  24. 0.1215
  25. 0.1922
  26. 4.559
  27. 28450
  28. 0.04371
  29. 3145
  30. 2125
  31. 2860
  32. 731
  33. 0.00335
  34. 0.4696
  35. 2650
  36. 1.362
  37. 0.4195
  38. 0.04081
  39. 0.4058
  40. 421.3

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