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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 619 · 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. 1.414.4 ÷ 100 =
  2. 2.1.24 × 1000 =
  3. 3.45.31 ÷ 1000 =
  4. 4.5.56 × 100 =
  5. 5.401.4 × 1000 =
  6. 6.14.91 ÷ 1000 =
  7. 7.117.6 ÷ 1000 =
  8. 8.19.51 × 10 =
  9. 9.253.4 × 100 =
  10. 10.41.68 ÷ 10 =
  11. 11.21.73 × 1000 =
  12. 12.36.49 ÷ 100 =
  13. 13.22.03 ÷ 10 =
  14. 14.47.17 ÷ 1000 =
  15. 15.47.74 ÷ 100 =
  16. 16.43.11 × 100 =
  17. 17.240.8 × 1000 =
  18. 18.39.06 × 10 =
  19. 19.13.09 × 100 =
  20. 20.9.07 × 1000 =
  21. 21.296.1 ÷ 1000 =
  22. 22.1.71 ÷ 10 =
  23. 23.393.2 ÷ 1000 =
  24. 24.26.77 × 100 =
  25. 25.138.1 ÷ 10 =
  26. 26.377.1 × 10 =
  27. 27.138.4 ÷ 1000 =
  28. 28.16.1 × 10 =
  29. 29.359.4 × 10 =
  30. 30.45.11 ÷ 100 =
  31. 31.35.68 ÷ 100 =
  32. 32.38.06 × 10 =
  33. 33.38.97 × 100 =
  34. 34.41.25 × 10 =
  35. 35.106.5 ÷ 100 =
  36. 36.296.8 × 10 =
  37. 37.178.3 ÷ 10 =
  38. 38.131.9 ÷ 1000 =
  39. 39.263.3 ÷ 1000 =
  40. 40.412.3 ÷ 10 =

Answer key

  1. 4.144
  2. 1240
  3. 0.04531
  4. 556
  5. 401400
  6. 0.01491
  7. 0.1176
  8. 195.1
  9. 25340
  10. 4.168
  11. 21730
  12. 0.3649
  13. 2.203
  14. 0.04717
  15. 0.4774
  16. 4311
  17. 240800
  18. 390.6
  19. 1309
  20. 9070
  21. 0.2961
  22. 0.171
  23. 0.3932
  24. 2677
  25. 13.81
  26. 3771
  27. 0.1384
  28. 161
  29. 3594
  30. 0.4511
  31. 0.3568
  32. 380.6
  33. 3897
  34. 412.5
  35. 1.065
  36. 2968
  37. 17.83
  38. 0.1319
  39. 0.2633
  40. 41.23

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