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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 329 · 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. 1.11.18 ÷ 10 =
  2. 2.46.82 × 1000 =
  3. 3.207.2 × 1000 =
  4. 4.107.5 × 10 =
  5. 5.48.1 × 10 =
  6. 6.52.1 ÷ 1000 =
  7. 7.16.48 × 100 =
  8. 8.485.7 × 100 =
  9. 9.242.6 ÷ 1000 =
  10. 10.23.15 ÷ 100 =
  11. 11.4.76 × 10 =
  12. 12.386.2 ÷ 1000 =
  13. 13.47.12 ÷ 10 =
  14. 14.53.1 × 1000 =
  15. 15.429.8 ÷ 100 =
  16. 16.68.5 × 100 =
  17. 17.172.8 × 100 =
  18. 18.347.1 × 100 =
  19. 19.143.5 × 1000 =
  20. 20.41.4 ÷ 1000 =
  21. 21.36.48 × 1000 =
  22. 22.23.36 ÷ 1000 =
  23. 23.19.31 × 10 =
  24. 24.42.76 ÷ 100 =
  25. 25.446.6 × 10 =
  26. 26.32.67 ÷ 100 =
  27. 27.194.1 × 1000 =
  28. 28.18.89 ÷ 1000 =
  29. 29.42.06 × 100 =
  30. 30.289.4 ÷ 1000 =
  31. 31.8.64 × 1000 =
  32. 32.11.24 ÷ 1000 =
  33. 33.5.47 × 1000 =
  34. 34.45.22 ÷ 1000 =
  35. 35.384.9 ÷ 1000 =
  36. 36.15.73 × 1000 =
  37. 37.15.98 × 100 =
  38. 38.394.9 ÷ 10 =
  39. 39.27.3 × 10 =
  40. 40.14.81 × 100 =

Answer key

  1. 1.118
  2. 46820
  3. 207200
  4. 1075
  5. 481
  6. 0.0521
  7. 1648
  8. 48570
  9. 0.2426
  10. 0.2315
  11. 47.6
  12. 0.3862
  13. 4.712
  14. 53100
  15. 4.298
  16. 6850
  17. 17280
  18. 34710
  19. 143500
  20. 0.0414
  21. 36480
  22. 0.02336
  23. 193.1
  24. 0.4276
  25. 4466
  26. 0.3267
  27. 194100
  28. 0.01889
  29. 4206
  30. 0.2894
  31. 8640
  32. 0.01124
  33. 5470
  34. 0.04522
  35. 0.3849
  36. 15730
  37. 1598
  38. 39.49
  39. 273
  40. 1481

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