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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 675 · 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. 1.29.48 ÷ 1000 =
  2. 2.8.81 ÷ 100 =
  3. 3.39.71 ÷ 100 =
  4. 4.409.9 ÷ 100 =
  5. 5.1.52 ÷ 10 =
  6. 6.20.14 ÷ 100 =
  7. 7.38.2 ÷ 100 =
  8. 8.8.94 × 1000 =
  9. 9.37.33 × 10 =
  10. 10.345.4 × 10 =
  11. 11.227.1 ÷ 10 =
  12. 12.235.4 × 1000 =
  13. 13.14.23 × 100 =
  14. 14.115.1 ÷ 1000 =
  15. 15.14.25 × 1000 =
  16. 16.49.73 × 10 =
  17. 17.241.2 × 1000 =
  18. 18.31.9 ÷ 100 =
  19. 19.387.8 × 1000 =
  20. 20.299.8 ÷ 1000 =
  21. 21.378.9 × 1000 =
  22. 22.360.2 × 100 =
  23. 23.5.06 × 1000 =
  24. 24.7.16 × 1000 =
  25. 25.270.3 ÷ 1000 =
  26. 26.183.8 ÷ 10 =
  27. 27.67.6 ÷ 10 =
  28. 28.6.36 ÷ 10 =
  29. 29.25.08 ÷ 10 =
  30. 30.342.2 ÷ 1000 =
  31. 31.375.1 × 10 =
  32. 32.48.7 ÷ 100 =
  33. 33.71.2 ÷ 100 =
  34. 34.48.77 ÷ 1000 =
  35. 35.46.13 ÷ 100 =
  36. 36.47.6 ÷ 10 =
  37. 37.40.6 ÷ 100 =
  38. 38.0.39 ÷ 100 =
  39. 39.14.75 ÷ 100 =
  40. 40.217.1 × 100 =

Answer key

  1. 0.02948
  2. 0.0881
  3. 0.3971
  4. 4.099
  5. 0.152
  6. 0.2014
  7. 0.382
  8. 8940
  9. 373.3
  10. 3454
  11. 22.71
  12. 235400
  13. 1423
  14. 0.1151
  15. 14250
  16. 497.3
  17. 241200
  18. 0.319
  19. 387800
  20. 0.2998
  21. 378900
  22. 36020
  23. 5060
  24. 7160
  25. 0.2703
  26. 18.38
  27. 6.76
  28. 0.636
  29. 2.508
  30. 0.3422
  31. 3751
  32. 0.487
  33. 0.712
  34. 0.04877
  35. 0.4613
  36. 4.76
  37. 0.406
  38. 0.0039
  39. 0.1475
  40. 21710

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