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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 351 · 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. 1.45.28 ÷ 10 =
  2. 2.16.2 ÷ 10 =
  3. 3.17.41 × 1000 =
  4. 4.22.33 ÷ 1000 =
  5. 5.32.76 ÷ 1000 =
  6. 6.331.9 ÷ 1000 =
  7. 7.439.3 ÷ 1000 =
  8. 8.35.56 × 1000 =
  9. 9.401.1 ÷ 100 =
  10. 10.239.7 × 100 =
  11. 11.36.64 × 10 =
  12. 12.17.93 × 100 =
  13. 13.260.5 × 1000 =
  14. 14.139.4 × 10 =
  15. 15.1.51 × 10 =
  16. 16.3.07 ÷ 10 =
  17. 17.69.4 × 10 =
  18. 18.20.11 × 1000 =
  19. 19.30.51 ÷ 100 =
  20. 20.24.69 ÷ 10 =
  21. 21.243.6 × 1000 =
  22. 22.110.2 × 1000 =
  23. 23.37.19 × 1000 =
  24. 24.264.2 × 10 =
  25. 25.46.33 ÷ 10 =
  26. 26.12.57 ÷ 10 =
  27. 27.452.3 ÷ 1000 =
  28. 28.6.94 × 10 =
  29. 29.39.17 ÷ 100 =
  30. 30.237.3 × 100 =
  31. 31.30.81 × 1000 =
  32. 32.156.9 ÷ 1000 =
  33. 33.43.6 × 100 =
  34. 34.241.8 × 1000 =
  35. 35.15.7 × 1000 =
  36. 36.19.7 ÷ 1000 =
  37. 37.102.6 × 100 =
  38. 38.24.11 ÷ 10 =
  39. 39.22.18 × 100 =
  40. 40.131.9 ÷ 10 =

Answer key

  1. 4.528
  2. 1.62
  3. 17410
  4. 0.02233
  5. 0.03276
  6. 0.3319
  7. 0.4393
  8. 35560
  9. 4.011
  10. 23970
  11. 366.4
  12. 1793
  13. 260500
  14. 1394
  15. 15.1
  16. 0.307
  17. 694
  18. 20110
  19. 0.3051
  20. 2.469
  21. 243600
  22. 110200
  23. 37190
  24. 2642
  25. 4.633
  26. 1.257
  27. 0.4523
  28. 69.4
  29. 0.3917
  30. 23730
  31. 30810
  32. 0.1569
  33. 4360
  34. 241800
  35. 15700
  36. 0.0197
  37. 10260
  38. 2.411
  39. 2218
  40. 13.19

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