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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 872 · 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. 1.49.02 × 1000 =
  2. 2.4.32 ÷ 10 =
  3. 3.4.84 ÷ 10 =
  4. 4.255.2 ÷ 100 =
  5. 5.0.54 × 100 =
  6. 6.168.8 ÷ 1000 =
  7. 7.33.71 × 10 =
  8. 8.209.5 × 100 =
  9. 9.18.62 × 1000 =
  10. 10.105.1 × 10 =
  11. 11.285.8 ÷ 100 =
  12. 12.392.2 ÷ 10 =
  13. 13.441.8 ÷ 100 =
  14. 14.347.9 × 1000 =
  15. 15.392.1 × 10 =
  16. 16.19.21 ÷ 100 =
  17. 17.56.3 × 1000 =
  18. 18.107.3 × 10 =
  19. 19.14.46 × 100 =
  20. 20.7.53 × 100 =
  21. 21.177.4 ÷ 100 =
  22. 22.33.6 ÷ 100 =
  23. 23.42.39 ÷ 1000 =
  24. 24.131.8 × 100 =
  25. 25.7.71 ÷ 1000 =
  26. 26.176.4 × 100 =
  27. 27.43.67 ÷ 100 =
  28. 28.47.81 × 1000 =
  29. 29.120.8 × 100 =
  30. 30.251.9 × 10 =
  31. 31.383.1 × 10 =
  32. 32.1.3 ÷ 100 =
  33. 33.456.5 ÷ 1000 =
  34. 34.473.9 × 100 =
  35. 35.35.1 × 100 =
  36. 36.46.04 × 10 =
  37. 37.53.4 × 100 =
  38. 38.38.58 × 1000 =
  39. 39.33.55 × 100 =
  40. 40.290.6 ÷ 10 =

Answer key

  1. 49020
  2. 0.432
  3. 0.484
  4. 2.552
  5. 54
  6. 0.1688
  7. 337.1
  8. 20950
  9. 18620
  10. 1051
  11. 2.858
  12. 39.22
  13. 4.418
  14. 347900
  15. 3921
  16. 0.1921
  17. 56300
  18. 1073
  19. 1446
  20. 753
  21. 1.774
  22. 0.336
  23. 0.04239
  24. 13180
  25. 0.00771
  26. 17640
  27. 0.4367
  28. 47810
  29. 12080
  30. 2519
  31. 3831
  32. 0.013
  33. 0.4565
  34. 47390
  35. 3510
  36. 460.4
  37. 5340
  38. 38580
  39. 3355
  40. 29.06

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