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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 443 · 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. 1.34.2 × 100 =
  2. 2.158.2 × 10 =
  3. 3.110.7 × 1000 =
  4. 4.26.25 ÷ 1000 =
  5. 5.40.65 ÷ 10 =
  6. 6.30.58 × 10 =
  7. 7.0.66 ÷ 1000 =
  8. 8.25.82 × 100 =
  9. 9.383.7 ÷ 10 =
  10. 10.64.2 ÷ 10 =
  11. 11.2.68 × 1000 =
  12. 12.160.6 × 100 =
  13. 13.38.96 ÷ 1000 =
  14. 14.23.78 × 1000 =
  15. 15.28.12 × 1000 =
  16. 16.44.62 × 100 =
  17. 17.87.3 ÷ 10 =
  18. 18.412.8 ÷ 1000 =
  19. 19.7.15 ÷ 100 =
  20. 20.461.4 ÷ 10 =
  21. 21.10.58 ÷ 10 =
  22. 22.43.11 × 10 =
  23. 23.466.8 × 100 =
  24. 24.490.1 × 10 =
  25. 25.47.7 ÷ 1000 =
  26. 26.1.08 ÷ 100 =
  27. 27.464.3 ÷ 10 =
  28. 28.37.32 × 100 =
  29. 29.438.8 × 100 =
  30. 30.160.7 × 1000 =
  31. 31.192.4 ÷ 1000 =
  32. 32.4.45 ÷ 1000 =
  33. 33.39.81 ÷ 100 =
  34. 34.72.6 ÷ 1000 =
  35. 35.45.54 ÷ 100 =
  36. 36.4.96 × 100 =
  37. 37.10.01 ÷ 10 =
  38. 38.380.7 × 100 =
  39. 39.123.9 × 10 =
  40. 40.18.31 ÷ 10 =

Answer key

  1. 3420
  2. 1582
  3. 110700
  4. 0.02625
  5. 4.065
  6. 305.8
  7. 0.00066
  8. 2582
  9. 38.37
  10. 6.42
  11. 2680
  12. 16060
  13. 0.03896
  14. 23780
  15. 28120
  16. 4462
  17. 8.73
  18. 0.4128
  19. 0.0715
  20. 46.14
  21. 1.058
  22. 431.1
  23. 46680
  24. 4901
  25. 0.0477
  26. 0.0108
  27. 46.43
  28. 3732
  29. 43880
  30. 160700
  31. 0.1924
  32. 0.00445
  33. 0.3981
  34. 0.0726
  35. 0.4554
  36. 496
  37. 1.001
  38. 38070
  39. 1239
  40. 1.831

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