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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 176 · 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. 1.371.1 ÷ 10 =
  2. 2.41.51 × 1000 =
  3. 3.491.9 × 10 =
  4. 4.9.52 × 100 =
  5. 5.177.3 ÷ 10 =
  6. 6.0.42 ÷ 100 =
  7. 7.181.1 × 1000 =
  8. 8.17.57 ÷ 100 =
  9. 9.203.3 × 1000 =
  10. 10.144.1 × 10 =
  11. 11.188.3 ÷ 10 =
  12. 12.123.1 ÷ 1000 =
  13. 13.39.7 ÷ 10 =
  14. 14.374.9 × 100 =
  15. 15.44.32 ÷ 100 =
  16. 16.334.4 × 1000 =
  17. 17.354.4 × 1000 =
  18. 18.188.3 × 100 =
  19. 19.11.11 ÷ 10 =
  20. 20.347.4 × 100 =
  21. 21.18.71 × 100 =
  22. 22.29.95 × 10 =
  23. 23.75.1 × 100 =
  24. 24.63.2 × 10 =
  25. 25.51.7 × 10 =
  26. 26.47.47 ÷ 1000 =
  27. 27.8.09 × 10 =
  28. 28.197.7 × 100 =
  29. 29.25.89 × 1000 =
  30. 30.108.1 ÷ 10 =
  31. 31.206.6 ÷ 10 =
  32. 32.445.7 ÷ 1000 =
  33. 33.35.08 × 1000 =
  34. 34.15.2 ÷ 100 =
  35. 35.30.29 × 10 =
  36. 36.15.68 ÷ 100 =
  37. 37.398.8 ÷ 10 =
  38. 38.427.5 ÷ 1000 =
  39. 39.10.16 ÷ 100 =
  40. 40.7.82 ÷ 1000 =

Answer key

  1. 37.11
  2. 41510
  3. 4919
  4. 952
  5. 17.73
  6. 0.0042
  7. 181100
  8. 0.1757
  9. 203300
  10. 1441
  11. 18.83
  12. 0.1231
  13. 3.97
  14. 37490
  15. 0.4432
  16. 334400
  17. 354400
  18. 18830
  19. 1.111
  20. 34740
  21. 1871
  22. 299.5
  23. 7510
  24. 632
  25. 517
  26. 0.04747
  27. 80.9
  28. 19770
  29. 25890
  30. 10.81
  31. 20.66
  32. 0.4457
  33. 35080
  34. 0.152
  35. 302.9
  36. 0.1568
  37. 39.88
  38. 0.4275
  39. 0.1016
  40. 0.00782

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