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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 652 · 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. 1.11.48 ÷ 100 =
  2. 2.48.09 × 1000 =
  3. 3.39.62 × 100 =
  4. 4.74.4 × 10 =
  5. 5.455.2 × 100 =
  6. 6.9.5 ÷ 100 =
  7. 7.129.7 × 100 =
  8. 8.28.95 × 1000 =
  9. 9.19.1 × 10 =
  10. 10.374.6 ÷ 10 =
  11. 11.12.88 ÷ 10 =
  12. 12.267.3 × 100 =
  13. 13.128.2 × 100 =
  14. 14.11.33 ÷ 10 =
  15. 15.497.6 × 1000 =
  16. 16.49.92 ÷ 10 =
  17. 17.166.1 × 1000 =
  18. 18.477.7 ÷ 100 =
  19. 19.9.02 × 100 =
  20. 20.36.72 × 10 =
  21. 21.463.2 ÷ 10 =
  22. 22.36.59 × 10 =
  23. 23.434.8 × 1000 =
  24. 24.155.2 × 10 =
  25. 25.129.3 ÷ 100 =
  26. 26.21.39 ÷ 100 =
  27. 27.42.39 × 100 =
  28. 28.31.67 ÷ 10 =
  29. 29.25.06 × 100 =
  30. 30.16.4 ÷ 100 =
  31. 31.1.66 × 1000 =
  32. 32.22.81 × 100 =
  33. 33.316.7 × 100 =
  34. 34.5.61 ÷ 100 =
  35. 35.8.88 × 10 =
  36. 36.39.9 × 100 =
  37. 37.121.9 ÷ 100 =
  38. 38.436.3 × 100 =
  39. 39.2.21 ÷ 1000 =
  40. 40.38.01 ÷ 1000 =

Answer key

  1. 0.1148
  2. 48090
  3. 3962
  4. 744
  5. 45520
  6. 0.095
  7. 12970
  8. 28950
  9. 191
  10. 37.46
  11. 1.288
  12. 26730
  13. 12820
  14. 1.133
  15. 497600
  16. 4.992
  17. 166100
  18. 4.777
  19. 902
  20. 367.2
  21. 46.32
  22. 365.9
  23. 434800
  24. 1552
  25. 1.293
  26. 0.2139
  27. 4239
  28. 3.167
  29. 2506
  30. 0.164
  31. 1660
  32. 2281
  33. 31670
  34. 0.0561
  35. 88.8
  36. 3990
  37. 1.219
  38. 43630
  39. 0.00221
  40. 0.03801

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