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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 440 · 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. 1.2.13 ÷ 1000 =
  2. 2.3.08 × 10 =
  3. 3.161.7 ÷ 1000 =
  4. 4.34.02 × 1000 =
  5. 5.212.1 ÷ 10 =
  6. 6.45.35 × 100 =
  7. 7.148.2 ÷ 10 =
  8. 8.20.59 × 1000 =
  9. 9.22.88 × 10 =
  10. 10.14.58 ÷ 10 =
  11. 11.48.65 ÷ 1000 =
  12. 12.443.1 × 100 =
  13. 13.168.5 × 100 =
  14. 14.44.07 × 10 =
  15. 15.145.8 ÷ 10 =
  16. 16.186.9 × 100 =
  17. 17.19.6 × 100 =
  18. 18.20.93 × 100 =
  19. 19.35.67 ÷ 1000 =
  20. 20.41.21 × 1000 =
  21. 21.321.4 × 10 =
  22. 22.33.66 × 10 =
  23. 23.24.83 ÷ 1000 =
  24. 24.43.92 × 10 =
  25. 25.103.5 × 10 =
  26. 26.111.1 × 10 =
  27. 27.109.6 × 10 =
  28. 28.37.51 × 100 =
  29. 29.20.59 × 10 =
  30. 30.85.7 ÷ 1000 =
  31. 31.259.9 ÷ 1000 =
  32. 32.1.66 × 100 =
  33. 33.52.1 ÷ 1000 =
  34. 34.434.2 ÷ 10 =
  35. 35.261.8 × 10 =
  36. 36.1.68 × 10 =
  37. 37.306.6 ÷ 100 =
  38. 38.6.81 ÷ 10 =
  39. 39.26.06 ÷ 1000 =
  40. 40.18.06 × 100 =

Answer key

  1. 0.00213
  2. 30.8
  3. 0.1617
  4. 34020
  5. 21.21
  6. 4535
  7. 14.82
  8. 20590
  9. 228.8
  10. 1.458
  11. 0.04865
  12. 44310
  13. 16850
  14. 440.7
  15. 14.58
  16. 18690
  17. 1960
  18. 2093
  19. 0.03567
  20. 41210
  21. 3214
  22. 336.6
  23. 0.02483
  24. 439.2
  25. 1035
  26. 1111
  27. 1096
  28. 3751
  29. 205.9
  30. 0.0857
  31. 0.2599
  32. 166
  33. 0.0521
  34. 43.42
  35. 2618
  36. 16.8
  37. 3.066
  38. 0.681
  39. 0.02606
  40. 1806

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