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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 559 · 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. 1.441.4 × 100 =
  2. 2.23.09 ÷ 1000 =
  3. 3.44.7 × 100 =
  4. 4.217.4 × 10 =
  5. 5.397.6 ÷ 1000 =
  6. 6.44.57 ÷ 1000 =
  7. 7.30.4 ÷ 10 =
  8. 8.43.61 ÷ 1000 =
  9. 9.11.33 × 1000 =
  10. 10.329.4 × 10 =
  11. 11.268.7 × 100 =
  12. 12.35.64 × 10 =
  13. 13.20.99 × 10 =
  14. 14.364.4 × 10 =
  15. 15.299.7 × 10 =
  16. 16.15.25 × 10 =
  17. 17.45.61 ÷ 100 =
  18. 18.13.92 ÷ 1000 =
  19. 19.13.73 ÷ 1000 =
  20. 20.47.84 ÷ 100 =
  21. 21.20.16 ÷ 10 =
  22. 22.44.32 × 1000 =
  23. 23.4.8 × 1000 =
  24. 24.12.91 ÷ 1000 =
  25. 25.4.32 ÷ 100 =
  26. 26.1.35 × 100 =
  27. 27.60.5 ÷ 10 =
  28. 28.30.36 × 100 =
  29. 29.436.2 × 10 =
  30. 30.37.82 ÷ 100 =
  31. 31.17.31 × 100 =
  32. 32.387.5 × 100 =
  33. 33.286.1 × 1000 =
  34. 34.199.6 ÷ 1000 =
  35. 35.27.31 × 1000 =
  36. 36.401.6 × 100 =
  37. 37.36.93 × 10 =
  38. 38.404.1 ÷ 1000 =
  39. 39.44.99 × 10 =
  40. 40.26.21 ÷ 1000 =

Answer key

  1. 44140
  2. 0.02309
  3. 4470
  4. 2174
  5. 0.3976
  6. 0.04457
  7. 3.04
  8. 0.04361
  9. 11330
  10. 3294
  11. 26870
  12. 356.4
  13. 209.9
  14. 3644
  15. 2997
  16. 152.5
  17. 0.4561
  18. 0.01392
  19. 0.01373
  20. 0.4784
  21. 2.016
  22. 44320
  23. 4800
  24. 0.01291
  25. 0.0432
  26. 135
  27. 6.05
  28. 3036
  29. 4362
  30. 0.3782
  31. 1731
  32. 38750
  33. 286100
  34. 0.1996
  35. 27310
  36. 40160
  37. 369.3
  38. 0.4041
  39. 449.9
  40. 0.02621

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