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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 271 · 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. 1.253.3 ÷ 100 =
  2. 2.45.69 × 100 =
  3. 3.33.34 ÷ 1000 =
  4. 4.429.7 × 1000 =
  5. 5.187.8 ÷ 1000 =
  6. 6.22.77 ÷ 1000 =
  7. 7.366.4 × 100 =
  8. 8.35.98 × 10 =
  9. 9.15.92 ÷ 100 =
  10. 10.286.4 × 1000 =
  11. 11.375.1 × 1000 =
  12. 12.0.57 × 10 =
  13. 13.20.15 × 100 =
  14. 14.125.7 ÷ 1000 =
  15. 15.10.25 × 1000 =
  16. 16.441.2 × 1000 =
  17. 17.234.3 × 10 =
  18. 18.21.17 ÷ 100 =
  19. 19.38.45 ÷ 10 =
  20. 20.34.88 × 10 =
  21. 21.21.16 ÷ 100 =
  22. 22.37.16 × 1000 =
  23. 23.339.9 ÷ 10 =
  24. 24.276.4 × 10 =
  25. 25.162.1 × 10 =
  26. 26.375.7 × 100 =
  27. 27.272.1 × 10 =
  28. 28.332.2 × 1000 =
  29. 29.456.5 ÷ 10 =
  30. 30.3.51 × 100 =
  31. 31.408.1 × 1000 =
  32. 32.4.59 ÷ 10 =
  33. 33.208.8 × 100 =
  34. 34.318.9 × 10 =
  35. 35.11.91 × 10 =
  36. 36.44.14 × 100 =
  37. 37.35.62 × 10 =
  38. 38.20.71 × 1000 =
  39. 39.36.04 ÷ 1000 =
  40. 40.289.8 ÷ 10 =

Answer key

  1. 2.533
  2. 4569
  3. 0.03334
  4. 429700
  5. 0.1878
  6. 0.02277
  7. 36640
  8. 359.8
  9. 0.1592
  10. 286400
  11. 375100
  12. 5.7
  13. 2015
  14. 0.1257
  15. 10250
  16. 441200
  17. 2343
  18. 0.2117
  19. 3.845
  20. 348.8
  21. 0.2116
  22. 37160
  23. 33.99
  24. 2764
  25. 1621
  26. 37570
  27. 2721
  28. 332200
  29. 45.65
  30. 351
  31. 408100
  32. 0.459
  33. 20880
  34. 3189
  35. 119.1
  36. 4414
  37. 356.2
  38. 20710
  39. 0.03604
  40. 28.98

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