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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 764 · 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. 1.27.29 ÷ 100 =
  2. 2.327.6 ÷ 10 =
  3. 3.450.1 × 10 =
  4. 4.35.57 × 100 =
  5. 5.280.1 × 10 =
  6. 6.18.28 × 1000 =
  7. 7.41.7 × 1000 =
  8. 8.33.48 ÷ 10 =
  9. 9.15.47 ÷ 1000 =
  10. 10.44.97 × 100 =
  11. 11.69.5 ÷ 10 =
  12. 12.317.7 ÷ 10 =
  13. 13.19.81 ÷ 1000 =
  14. 14.123.9 × 100 =
  15. 15.2.25 ÷ 100 =
  16. 16.47.77 ÷ 1000 =
  17. 17.21.79 × 100 =
  18. 18.21.16 × 100 =
  19. 19.7.23 ÷ 10 =
  20. 20.23.72 ÷ 1000 =
  21. 21.38.56 × 1000 =
  22. 22.1.43 × 100 =
  23. 23.36.82 × 10 =
  24. 24.322.7 ÷ 100 =
  25. 25.26.94 ÷ 1000 =
  26. 26.23.68 ÷ 100 =
  27. 27.194.2 ÷ 100 =
  28. 28.135.5 ÷ 100 =
  29. 29.18.64 × 10 =
  30. 30.320.5 × 100 =
  31. 31.75.5 ÷ 1000 =
  32. 32.150.1 × 10 =
  33. 33.45.99 × 10 =
  34. 34.4.02 ÷ 10 =
  35. 35.302.7 ÷ 1000 =
  36. 36.5.24 × 10 =
  37. 37.1.71 ÷ 1000 =
  38. 38.17.72 × 100 =
  39. 39.22.51 ÷ 1000 =
  40. 40.9.83 × 10 =

Answer key

  1. 0.2729
  2. 32.76
  3. 4501
  4. 3557
  5. 2801
  6. 18280
  7. 41700
  8. 3.348
  9. 0.01547
  10. 4497
  11. 6.95
  12. 31.77
  13. 0.01981
  14. 12390
  15. 0.0225
  16. 0.04777
  17. 2179
  18. 2116
  19. 0.723
  20. 0.02372
  21. 38560
  22. 143
  23. 368.2
  24. 3.227
  25. 0.02694
  26. 0.2368
  27. 1.942
  28. 1.355
  29. 186.4
  30. 32050
  31. 0.0755
  32. 1501
  33. 459.9
  34. 0.402
  35. 0.3027
  36. 52.4
  37. 0.00171
  38. 1772
  39. 0.02251
  40. 98.3

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