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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 941 · 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. 1.294.6 ÷ 10 =
  2. 2.15.65 ÷ 1000 =
  3. 3.32.73 ÷ 10 =
  4. 4.214.7 ÷ 1000 =
  5. 5.103.8 ÷ 1000 =
  6. 6.268.6 ÷ 100 =
  7. 7.6.46 ÷ 10 =
  8. 8.7.11 ÷ 1000 =
  9. 9.14.69 × 1000 =
  10. 10.26.15 ÷ 100 =
  11. 11.147.1 × 100 =
  12. 12.361.1 × 10 =
  13. 13.40.25 × 1000 =
  14. 14.56.1 ÷ 100 =
  15. 15.35.76 ÷ 1000 =
  16. 16.9.11 × 1000 =
  17. 17.16.22 × 100 =
  18. 18.419.4 × 1000 =
  19. 19.378.3 ÷ 1000 =
  20. 20.4.97 × 100 =
  21. 21.12.27 × 1000 =
  22. 22.94.7 ÷ 100 =
  23. 23.323.7 × 1000 =
  24. 24.22.41 ÷ 100 =
  25. 25.35.35 × 100 =
  26. 26.38.16 × 1000 =
  27. 27.41.73 × 1000 =
  28. 28.233.1 × 1000 =
  29. 29.30.08 × 10 =
  30. 30.403.3 ÷ 100 =
  31. 31.17.15 × 100 =
  32. 32.360.8 × 1000 =
  33. 33.28.26 ÷ 100 =
  34. 34.283.1 ÷ 10 =
  35. 35.201.5 ÷ 100 =
  36. 36.46.73 × 1000 =
  37. 37.361.4 ÷ 10 =
  38. 38.211.4 ÷ 1000 =
  39. 39.234.1 × 1000 =
  40. 40.497.5 × 10 =

Answer key

  1. 29.46
  2. 0.01565
  3. 3.273
  4. 0.2147
  5. 0.1038
  6. 2.686
  7. 0.646
  8. 0.00711
  9. 14690
  10. 0.2615
  11. 14710
  12. 3611
  13. 40250
  14. 0.561
  15. 0.03576
  16. 9110
  17. 1622
  18. 419400
  19. 0.3783
  20. 497
  21. 12270
  22. 0.947
  23. 323700
  24. 0.2241
  25. 3535
  26. 38160
  27. 41730
  28. 233100
  29. 300.8
  30. 4.033
  31. 1715
  32. 360800
  33. 0.2826
  34. 28.31
  35. 2.015
  36. 46730
  37. 36.14
  38. 0.2114
  39. 234100
  40. 4975

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