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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 671 · 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. 1.468.8 ÷ 1000 =
  2. 2.23.19 × 100 =
  3. 3.42.59 × 10 =
  4. 4.152.7 × 10 =
  5. 5.156.6 × 100 =
  6. 6.3.5 ÷ 10 =
  7. 7.410.4 × 100 =
  8. 8.37.15 ÷ 100 =
  9. 9.11.01 ÷ 1000 =
  10. 10.169.7 × 100 =
  11. 11.1.05 × 100 =
  12. 12.186.9 ÷ 100 =
  13. 13.367.5 × 100 =
  14. 14.27.79 ÷ 10 =
  15. 15.35.65 × 100 =
  16. 16.38.06 ÷ 1000 =
  17. 17.468.1 × 100 =
  18. 18.24.61 × 10 =
  19. 19.5.28 ÷ 1000 =
  20. 20.238.4 × 100 =
  21. 21.18.91 × 10 =
  22. 22.165.4 ÷ 1000 =
  23. 23.310.1 × 1000 =
  24. 24.274.7 × 10 =
  25. 25.40.7 × 1000 =
  26. 26.252.8 × 100 =
  27. 27.34.17 ÷ 10 =
  28. 28.338.1 × 100 =
  29. 29.301.6 ÷ 100 =
  30. 30.34.02 × 10 =
  31. 31.234.2 ÷ 100 =
  32. 32.21.33 ÷ 10 =
  33. 33.34.14 × 1000 =
  34. 34.102.8 × 1000 =
  35. 35.4.9 × 10 =
  36. 36.40.6 ÷ 100 =
  37. 37.7.53 × 10 =
  38. 38.9.91 ÷ 10 =
  39. 39.352.9 ÷ 100 =
  40. 40.26.87 ÷ 100 =

Answer key

  1. 0.4688
  2. 2319
  3. 425.9
  4. 1527
  5. 15660
  6. 0.35
  7. 41040
  8. 0.3715
  9. 0.01101
  10. 16970
  11. 105
  12. 1.869
  13. 36750
  14. 2.779
  15. 3565
  16. 0.03806
  17. 46810
  18. 246.1
  19. 0.00528
  20. 23840
  21. 189.1
  22. 0.1654
  23. 310100
  24. 2747
  25. 40700
  26. 25280
  27. 3.417
  28. 33810
  29. 3.016
  30. 340.2
  31. 2.342
  32. 2.133
  33. 34140
  34. 102800
  35. 49
  36. 0.406
  37. 75.3
  38. 0.991
  39. 3.529
  40. 0.2687

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