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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 549 · 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. 1.33.78 ÷ 1000 =
  2. 2.368.1 × 10 =
  3. 3.99.8 ÷ 10 =
  4. 4.32.11 ÷ 1000 =
  5. 5.430.1 × 1000 =
  6. 6.48.72 × 1000 =
  7. 7.42.6 ÷ 10 =
  8. 8.381.1 ÷ 100 =
  9. 9.436.5 × 10 =
  10. 10.332.7 × 100 =
  11. 11.44.8 × 10 =
  12. 12.14.68 × 10 =
  13. 13.51.4 ÷ 100 =
  14. 14.23.02 ÷ 1000 =
  15. 15.27.86 × 1000 =
  16. 16.290.4 × 1000 =
  17. 17.27.64 ÷ 1000 =
  18. 18.30.31 ÷ 100 =
  19. 19.1.24 × 10 =
  20. 20.265.1 × 10 =
  21. 21.215.1 ÷ 100 =
  22. 22.11.01 × 100 =
  23. 23.193.9 ÷ 100 =
  24. 24.22.96 ÷ 1000 =
  25. 25.21.97 × 10 =
  26. 26.12.28 × 100 =
  27. 27.177.8 × 100 =
  28. 28.457.1 ÷ 10 =
  29. 29.23.1 ÷ 10 =
  30. 30.206.9 ÷ 10 =
  31. 31.22.58 × 100 =
  32. 32.120.5 ÷ 10 =
  33. 33.26.18 ÷ 10 =
  34. 34.2.61 × 100 =
  35. 35.3.11 ÷ 100 =
  36. 36.32.78 ÷ 100 =
  37. 37.33.17 ÷ 1000 =
  38. 38.449.1 × 10 =
  39. 39.32.07 × 10 =
  40. 40.259.9 ÷ 100 =

Answer key

  1. 0.03378
  2. 3681
  3. 9.98
  4. 0.03211
  5. 430100
  6. 48720
  7. 4.26
  8. 3.811
  9. 4365
  10. 33270
  11. 448
  12. 146.8
  13. 0.514
  14. 0.02302
  15. 27860
  16. 290400
  17. 0.02764
  18. 0.3031
  19. 12.4
  20. 2651
  21. 2.151
  22. 1101
  23. 1.939
  24. 0.02296
  25. 219.7
  26. 1228
  27. 17780
  28. 45.71
  29. 2.31
  30. 20.69
  31. 2258
  32. 12.05
  33. 2.618
  34. 261
  35. 0.0311
  36. 0.3278
  37. 0.03317
  38. 4491
  39. 320.7
  40. 2.599

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