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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 165 · 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. 1.26.76 ÷ 10 =
  2. 2.142.2 ÷ 100 =
  3. 3.43.1 × 1000 =
  4. 4.30.27 × 10 =
  5. 5.10.9 × 1000 =
  6. 6.69.8 ÷ 100 =
  7. 7.21.41 ÷ 1000 =
  8. 8.324.4 × 10 =
  9. 9.39.1 ÷ 1000 =
  10. 10.352.9 ÷ 100 =
  11. 11.207.2 ÷ 100 =
  12. 12.381.2 × 10 =
  13. 13.120.2 ÷ 1000 =
  14. 14.10.24 ÷ 10 =
  15. 15.14.06 × 100 =
  16. 16.163.8 ÷ 10 =
  17. 17.22.35 × 10 =
  18. 18.13.53 ÷ 1000 =
  19. 19.448.5 ÷ 1000 =
  20. 20.62.7 ÷ 1000 =
  21. 21.3.21 ÷ 10 =
  22. 22.235.1 ÷ 100 =
  23. 23.246.5 ÷ 100 =
  24. 24.350.5 ÷ 1000 =
  25. 25.49.84 ÷ 100 =
  26. 26.397.1 × 1000 =
  27. 27.7.96 ÷ 10 =
  28. 28.163.4 × 1000 =
  29. 29.22.82 ÷ 1000 =
  30. 30.4.17 ÷ 100 =
  31. 31.46.61 ÷ 10 =
  32. 32.3.6 × 1000 =
  33. 33.150.4 ÷ 10 =
  34. 34.201.6 ÷ 100 =
  35. 35.36.98 ÷ 1000 =
  36. 36.23.84 ÷ 100 =
  37. 37.45.15 ÷ 10 =
  38. 38.231.9 ÷ 1000 =
  39. 39.45.82 × 100 =
  40. 40.14.66 × 100 =

Answer key

  1. 2.676
  2. 1.422
  3. 43100
  4. 302.7
  5. 10900
  6. 0.698
  7. 0.02141
  8. 3244
  9. 0.0391
  10. 3.529
  11. 2.072
  12. 3812
  13. 0.1202
  14. 1.024
  15. 1406
  16. 16.38
  17. 223.5
  18. 0.01353
  19. 0.4485
  20. 0.0627
  21. 0.321
  22. 2.351
  23. 2.465
  24. 0.3505
  25. 0.4984
  26. 397100
  27. 0.796
  28. 163400
  29. 0.02282
  30. 0.0417
  31. 4.661
  32. 3600
  33. 15.04
  34. 2.016
  35. 0.03698
  36. 0.2384
  37. 4.515
  38. 0.2319
  39. 4582
  40. 1466

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