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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 208 · 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. 1.475.2 ÷ 100 =
  2. 2.25.95 ÷ 100 =
  3. 3.225.6 × 100 =
  4. 4.0.32 ÷ 10 =
  5. 5.466.7 × 10 =
  6. 6.158.1 ÷ 10 =
  7. 7.289.2 × 100 =
  8. 8.4.1 × 10 =
  9. 9.390.3 ÷ 1000 =
  10. 10.487.5 × 100 =
  11. 11.356.5 ÷ 1000 =
  12. 12.338.6 × 100 =
  13. 13.39.47 × 10 =
  14. 14.106.8 ÷ 10 =
  15. 15.1.27 ÷ 10 =
  16. 16.10.1 ÷ 100 =
  17. 17.277.2 × 100 =
  18. 18.485.6 × 100 =
  19. 19.0.27 × 10 =
  20. 20.456.4 ÷ 100 =
  21. 21.15.06 ÷ 100 =
  22. 22.451.4 ÷ 10 =
  23. 23.452.7 ÷ 100 =
  24. 24.71.8 ÷ 1000 =
  25. 25.5.91 × 10 =
  26. 26.334.5 ÷ 1000 =
  27. 27.169.2 × 1000 =
  28. 28.182.9 × 100 =
  29. 29.441.7 ÷ 1000 =
  30. 30.32.04 ÷ 100 =
  31. 31.5.01 ÷ 100 =
  32. 32.493.5 ÷ 1000 =
  33. 33.48.97 ÷ 100 =
  34. 34.73.1 ÷ 10 =
  35. 35.444.7 × 1000 =
  36. 36.24.4 ÷ 1000 =
  37. 37.140.9 ÷ 100 =
  38. 38.136.7 × 10 =
  39. 39.44.16 × 1000 =
  40. 40.172.1 ÷ 10 =

Answer key

  1. 4.752
  2. 0.2595
  3. 22560
  4. 0.032
  5. 4667
  6. 15.81
  7. 28920
  8. 41
  9. 0.3903
  10. 48750
  11. 0.3565
  12. 33860
  13. 394.7
  14. 10.68
  15. 0.127
  16. 0.101
  17. 27720
  18. 48560
  19. 2.7
  20. 4.564
  21. 0.1506
  22. 45.14
  23. 4.527
  24. 0.0718
  25. 59.1
  26. 0.3345
  27. 169200
  28. 18290
  29. 0.4417
  30. 0.3204
  31. 0.0501
  32. 0.4935
  33. 0.4897
  34. 7.31
  35. 444700
  36. 0.0244
  37. 1.409
  38. 1367
  39. 44160
  40. 17.21

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