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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 370 · 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. 1.216.6 ÷ 1000 =
  2. 2.44.91 ÷ 10 =
  3. 3.44.97 ÷ 1000 =
  4. 4.3.49 ÷ 1000 =
  5. 5.22.09 ÷ 100 =
  6. 6.8.77 × 10 =
  7. 7.136.3 × 10 =
  8. 8.209.7 × 10 =
  9. 9.41.24 ÷ 1000 =
  10. 10.10.6 ÷ 10 =
  11. 11.46.04 ÷ 10 =
  12. 12.44.24 ÷ 10 =
  13. 13.146.7 × 1000 =
  14. 14.42.53 × 1000 =
  15. 15.29.99 ÷ 1000 =
  16. 16.22.01 × 100 =
  17. 17.149.1 × 1000 =
  18. 18.120.3 × 100 =
  19. 19.462.9 ÷ 10 =
  20. 20.29.95 ÷ 1000 =
  21. 21.27.01 × 10 =
  22. 22.40.6 ÷ 10 =
  23. 23.447.1 × 10 =
  24. 24.38.17 ÷ 10 =
  25. 25.477.4 ÷ 1000 =
  26. 26.45.75 ÷ 10 =
  27. 27.8.63 × 10 =
  28. 28.454.2 ÷ 1000 =
  29. 29.173.4 ÷ 10 =
  30. 30.21.56 × 10 =
  31. 31.87.2 × 1000 =
  32. 32.265.4 ÷ 100 =
  33. 33.32.16 ÷ 100 =
  34. 34.28.8 × 10 =
  35. 35.86.6 ÷ 1000 =
  36. 36.141.2 ÷ 100 =
  37. 37.306.4 × 1000 =
  38. 38.61.9 × 100 =
  39. 39.353.9 × 10 =
  40. 40.382.5 ÷ 10 =

Answer key

  1. 0.2166
  2. 4.491
  3. 0.04497
  4. 0.00349
  5. 0.2209
  6. 87.7
  7. 1363
  8. 2097
  9. 0.04124
  10. 1.06
  11. 4.604
  12. 4.424
  13. 146700
  14. 42530
  15. 0.02999
  16. 2201
  17. 149100
  18. 12030
  19. 46.29
  20. 0.02995
  21. 270.1
  22. 4.06
  23. 4471
  24. 3.817
  25. 0.4774
  26. 4.575
  27. 86.3
  28. 0.4542
  29. 17.34
  30. 215.6
  31. 87200
  32. 2.654
  33. 0.3216
  34. 288
  35. 0.0866
  36. 1.412
  37. 306400
  38. 6190
  39. 3539
  40. 38.25

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