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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 694 · 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. 1.45.95 ÷ 100 =
  2. 2.41.76 × 10 =
  3. 3.18.49 ÷ 100 =
  4. 4.45.76 × 1000 =
  5. 5.34.1 × 100 =
  6. 6.8.9 ÷ 10 =
  7. 7.21.51 × 1000 =
  8. 8.251.8 × 100 =
  9. 9.485.5 ÷ 10 =
  10. 10.3.86 ÷ 100 =
  11. 11.124.1 × 10 =
  12. 12.10.44 × 10 =
  13. 13.43.08 × 100 =
  14. 14.31.41 × 10 =
  15. 15.488.4 × 10 =
  16. 16.34.57 × 100 =
  17. 17.11.01 × 10 =
  18. 18.6.62 ÷ 10 =
  19. 19.121.9 × 10 =
  20. 20.26.47 ÷ 1000 =
  21. 21.247.6 × 100 =
  22. 22.43.22 ÷ 10 =
  23. 23.36.18 ÷ 10 =
  24. 24.32.08 ÷ 100 =
  25. 25.339.1 ÷ 10 =
  26. 26.267.8 ÷ 1000 =
  27. 27.4.56 × 100 =
  28. 28.20.45 ÷ 100 =
  29. 29.27.14 × 10 =
  30. 30.41.01 × 1000 =
  31. 31.117.7 × 100 =
  32. 32.31.36 ÷ 100 =
  33. 33.383.6 × 100 =
  34. 34.44.39 ÷ 10 =
  35. 35.219.8 ÷ 10 =
  36. 36.453.6 × 10 =
  37. 37.0.18 × 1000 =
  38. 38.26.85 × 10 =
  39. 39.41.08 × 1000 =
  40. 40.294.5 × 100 =

Answer key

  1. 0.4595
  2. 417.6
  3. 0.1849
  4. 45760
  5. 3410
  6. 0.89
  7. 21510
  8. 25180
  9. 48.55
  10. 0.0386
  11. 1241
  12. 104.4
  13. 4308
  14. 314.1
  15. 4884
  16. 3457
  17. 110.1
  18. 0.662
  19. 1219
  20. 0.02647
  21. 24760
  22. 4.322
  23. 3.618
  24. 0.3208
  25. 33.91
  26. 0.2678
  27. 456
  28. 0.2045
  29. 271.4
  30. 41010
  31. 11770
  32. 0.3136
  33. 38360
  34. 4.439
  35. 21.98
  36. 4536
  37. 180
  38. 268.5
  39. 41080
  40. 29450

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