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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 461 · 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. 1.294.4 ÷ 10 =
  2. 2.145.7 ÷ 100 =
  3. 3.139.2 × 1000 =
  4. 4.31.61 ÷ 100 =
  5. 5.466.5 ÷ 1000 =
  6. 6.11.2 ÷ 1000 =
  7. 7.225.2 ÷ 1000 =
  8. 8.141.1 ÷ 10 =
  9. 9.38.03 × 1000 =
  10. 10.48.6 ÷ 100 =
  11. 11.323.7 × 100 =
  12. 12.208.4 × 1000 =
  13. 13.468.4 ÷ 100 =
  14. 14.278.3 × 10 =
  15. 15.17.32 ÷ 100 =
  16. 16.453.6 × 10 =
  17. 17.13.75 × 100 =
  18. 18.456.6 ÷ 100 =
  19. 19.155.9 ÷ 1000 =
  20. 20.149.5 × 100 =
  21. 21.214.4 × 10 =
  22. 22.251.4 × 1000 =
  23. 23.26.98 × 1000 =
  24. 24.91.4 × 100 =
  25. 25.30.13 ÷ 100 =
  26. 26.157.2 × 1000 =
  27. 27.1.15 ÷ 100 =
  28. 28.321.1 ÷ 1000 =
  29. 29.14.61 × 10 =
  30. 30.35.24 ÷ 10 =
  31. 31.276.6 × 1000 =
  32. 32.26.87 × 10 =
  33. 33.409.7 ÷ 100 =
  34. 34.29.92 ÷ 100 =
  35. 35.32.59 ÷ 100 =
  36. 36.28.26 × 10 =
  37. 37.460.1 × 10 =
  38. 38.263.2 × 10 =
  39. 39.5.1 × 100 =
  40. 40.434.6 ÷ 100 =

Answer key

  1. 29.44
  2. 1.457
  3. 139200
  4. 0.3161
  5. 0.4665
  6. 0.0112
  7. 0.2252
  8. 14.11
  9. 38030
  10. 0.486
  11. 32370
  12. 208400
  13. 4.684
  14. 2783
  15. 0.1732
  16. 4536
  17. 1375
  18. 4.566
  19. 0.1559
  20. 14950
  21. 2144
  22. 251400
  23. 26980
  24. 9140
  25. 0.3013
  26. 157200
  27. 0.0115
  28. 0.3211
  29. 146.1
  30. 3.524
  31. 276600
  32. 268.7
  33. 4.097
  34. 0.2992
  35. 0.3259
  36. 282.6
  37. 4601
  38. 2632
  39. 510
  40. 4.346

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