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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 654 · 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. 1.114.7 × 100 =
  2. 2.8.24 × 10 =
  3. 3.455.8 ÷ 1000 =
  4. 4.38.98 ÷ 10 =
  5. 5.370.6 ÷ 100 =
  6. 6.358.6 × 100 =
  7. 7.62.3 × 1000 =
  8. 8.28.78 ÷ 10 =
  9. 9.67.6 × 10 =
  10. 10.46.43 ÷ 1000 =
  11. 11.277.3 × 100 =
  12. 12.424.5 × 100 =
  13. 13.165.4 × 1000 =
  14. 14.480.4 × 100 =
  15. 15.8.67 × 1000 =
  16. 16.453.4 ÷ 10 =
  17. 17.16.77 ÷ 1000 =
  18. 18.32.47 × 10 =
  19. 19.164.9 × 10 =
  20. 20.469.2 × 100 =
  21. 21.19.04 × 10 =
  22. 22.55.4 × 1000 =
  23. 23.43.89 × 10 =
  24. 24.296.6 ÷ 10 =
  25. 25.9.96 ÷ 1000 =
  26. 26.90.3 × 10 =
  27. 27.323.9 × 10 =
  28. 28.26.95 ÷ 10 =
  29. 29.490.4 ÷ 10 =
  30. 30.39.52 × 1000 =
  31. 31.5.11 ÷ 1000 =
  32. 32.258.1 ÷ 10 =
  33. 33.372.4 ÷ 10 =
  34. 34.48.01 ÷ 10 =
  35. 35.30.58 ÷ 10 =
  36. 36.12.2 ÷ 100 =
  37. 37.203.6 × 10 =
  38. 38.195.2 × 1000 =
  39. 39.23.29 × 10 =
  40. 40.4.5 × 100 =

Answer key

  1. 11470
  2. 82.4
  3. 0.4558
  4. 3.898
  5. 3.706
  6. 35860
  7. 62300
  8. 2.878
  9. 676
  10. 0.04643
  11. 27730
  12. 42450
  13. 165400
  14. 48040
  15. 8670
  16. 45.34
  17. 0.01677
  18. 324.7
  19. 1649
  20. 46920
  21. 190.4
  22. 55400
  23. 438.9
  24. 29.66
  25. 0.00996
  26. 903
  27. 3239
  28. 2.695
  29. 49.04
  30. 39520
  31. 0.00511
  32. 25.81
  33. 37.24
  34. 4.801
  35. 3.058
  36. 0.122
  37. 2036
  38. 195200
  39. 232.9
  40. 450

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