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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 286 · 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. 1.281.6 ÷ 100 =
  2. 2.94.6 × 1000 =
  3. 3.446.8 ÷ 100 =
  4. 4.32.73 × 10 =
  5. 5.22.21 ÷ 1000 =
  6. 6.37.34 ÷ 100 =
  7. 7.422.2 ÷ 1000 =
  8. 8.37.9 ÷ 10 =
  9. 9.9.47 × 1000 =
  10. 10.17.91 × 1000 =
  11. 11.1.6 ÷ 1000 =
  12. 12.0.81 × 100 =
  13. 13.32.96 ÷ 1000 =
  14. 14.118.2 × 100 =
  15. 15.33.36 ÷ 10 =
  16. 16.365.6 × 10 =
  17. 17.49.01 ÷ 1000 =
  18. 18.31.34 ÷ 10 =
  19. 19.14.34 ÷ 10 =
  20. 20.112.2 ÷ 10 =
  21. 21.5.33 × 100 =
  22. 22.374.9 ÷ 10 =
  23. 23.470.4 × 10 =
  24. 24.212.3 × 1000 =
  25. 25.255.8 × 1000 =
  26. 26.36.35 × 1000 =
  27. 27.26.36 ÷ 1000 =
  28. 28.30.01 ÷ 10 =
  29. 29.361.5 × 1000 =
  30. 30.13.12 × 10 =
  31. 31.442.7 × 1000 =
  32. 32.348.7 ÷ 10 =
  33. 33.17.27 × 100 =
  34. 34.364.2 × 10 =
  35. 35.22.39 × 100 =
  36. 36.182.3 ÷ 100 =
  37. 37.466.6 × 1000 =
  38. 38.142.2 × 100 =
  39. 39.341.4 × 10 =
  40. 40.148.6 × 1000 =

Answer key

  1. 2.816
  2. 94600
  3. 4.468
  4. 327.3
  5. 0.02221
  6. 0.3734
  7. 0.4222
  8. 3.79
  9. 9470
  10. 17910
  11. 0.0016
  12. 81
  13. 0.03296
  14. 11820
  15. 3.336
  16. 3656
  17. 0.04901
  18. 3.134
  19. 1.434
  20. 11.22
  21. 533
  22. 37.49
  23. 4704
  24. 212300
  25. 255800
  26. 36350
  27. 0.02636
  28. 3.001
  29. 361500
  30. 131.2
  31. 442700
  32. 34.87
  33. 1727
  34. 3642
  35. 2239
  36. 1.823
  37. 466600
  38. 14220
  39. 3414
  40. 148600

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