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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 439 · 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. 1.10.32 × 1000 =
  2. 2.3.03 ÷ 1000 =
  3. 3.209.7 ÷ 10 =
  4. 4.160.9 ÷ 1000 =
  5. 5.15.57 ÷ 100 =
  6. 6.18.69 × 1000 =
  7. 7.98.4 ÷ 1000 =
  8. 8.33.66 × 100 =
  9. 9.475.7 ÷ 10 =
  10. 10.36.58 × 10 =
  11. 11.268.7 × 10 =
  12. 12.24.56 × 1000 =
  13. 13.40.81 ÷ 10 =
  14. 14.57.4 ÷ 10 =
  15. 15.97.7 ÷ 1000 =
  16. 16.420.7 × 10 =
  17. 17.42.79 × 100 =
  18. 18.96.3 × 10 =
  19. 19.47.01 × 100 =
  20. 20.98.9 × 100 =
  21. 21.10.33 × 100 =
  22. 22.4.73 ÷ 1000 =
  23. 23.23.61 ÷ 1000 =
  24. 24.20.34 × 100 =
  25. 25.255.9 × 10 =
  26. 26.307.8 × 1000 =
  27. 27.376.9 ÷ 10 =
  28. 28.114.4 × 1000 =
  29. 29.36.05 ÷ 100 =
  30. 30.19.48 ÷ 100 =
  31. 31.23.62 × 10 =
  32. 32.84.4 × 10 =
  33. 33.25.67 ÷ 10 =
  34. 34.32.54 × 10 =
  35. 35.376.3 ÷ 1000 =
  36. 36.384.7 × 1000 =
  37. 37.20.02 × 1000 =
  38. 38.7.97 × 100 =
  39. 39.13.12 ÷ 10 =
  40. 40.11.67 ÷ 100 =

Answer key

  1. 10320
  2. 0.00303
  3. 20.97
  4. 0.1609
  5. 0.1557
  6. 18690
  7. 0.0984
  8. 3366
  9. 47.57
  10. 365.8
  11. 2687
  12. 24560
  13. 4.081
  14. 5.74
  15. 0.0977
  16. 4207
  17. 4279
  18. 963
  19. 4701
  20. 9890
  21. 1033
  22. 0.00473
  23. 0.02361
  24. 2034
  25. 2559
  26. 307800
  27. 37.69
  28. 114400
  29. 0.3605
  30. 0.1948
  31. 236.2
  32. 844
  33. 2.567
  34. 325.4
  35. 0.3763
  36. 384700
  37. 20020
  38. 797
  39. 1.312
  40. 0.1167

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