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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 748 · 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. 1.19.51 ÷ 10 =
  2. 2.45.23 ÷ 1000 =
  3. 3.19.41 ÷ 1000 =
  4. 4.35.03 × 1000 =
  5. 5.33.54 × 100 =
  6. 6.27.78 × 1000 =
  7. 7.16.71 × 1000 =
  8. 8.298.3 × 10 =
  9. 9.490.2 ÷ 10 =
  10. 10.36.02 ÷ 10 =
  11. 11.180.5 × 100 =
  12. 12.91.8 × 100 =
  13. 13.499.2 ÷ 10 =
  14. 14.22.82 ÷ 10 =
  15. 15.209.6 ÷ 10 =
  16. 16.269.7 ÷ 1000 =
  17. 17.188.3 × 100 =
  18. 18.272.1 × 100 =
  19. 19.147.8 × 1000 =
  20. 20.41.25 × 1000 =
  21. 21.419.8 × 100 =
  22. 22.76.6 × 1000 =
  23. 23.3.02 ÷ 10 =
  24. 24.1.8 ÷ 10 =
  25. 25.240.8 × 100 =
  26. 26.242.5 × 10 =
  27. 27.32.24 × 100 =
  28. 28.301.6 × 10 =
  29. 29.42.61 ÷ 1000 =
  30. 30.183.5 × 10 =
  31. 31.158.1 × 100 =
  32. 32.463.4 × 10 =
  33. 33.174.1 × 1000 =
  34. 34.25.58 ÷ 10 =
  35. 35.385.7 ÷ 100 =
  36. 36.434.2 × 10 =
  37. 37.22.36 × 10 =
  38. 38.266.2 × 100 =
  39. 39.45.81 × 1000 =
  40. 40.444.6 × 10 =

Answer key

  1. 1.951
  2. 0.04523
  3. 0.01941
  4. 35030
  5. 3354
  6. 27780
  7. 16710
  8. 2983
  9. 49.02
  10. 3.602
  11. 18050
  12. 9180
  13. 49.92
  14. 2.282
  15. 20.96
  16. 0.2697
  17. 18830
  18. 27210
  19. 147800
  20. 41250
  21. 41980
  22. 76600
  23. 0.302
  24. 0.18
  25. 24080
  26. 2425
  27. 3224
  28. 3016
  29. 0.04261
  30. 1835
  31. 15810
  32. 4634
  33. 174100
  34. 2.558
  35. 3.857
  36. 4342
  37. 223.6
  38. 26620
  39. 45810
  40. 4446

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