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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 516 · 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. 1.40.63 ÷ 100 =
  2. 2.39.4 ÷ 10 =
  3. 3.470.4 ÷ 1000 =
  4. 4.8.99 × 1000 =
  5. 5.250.7 ÷ 10 =
  6. 6.473.6 ÷ 1000 =
  7. 7.61.1 ÷ 1000 =
  8. 8.99.1 × 10 =
  9. 9.21.73 ÷ 1000 =
  10. 10.125.1 × 1000 =
  11. 11.496.5 × 100 =
  12. 12.31.22 ÷ 1000 =
  13. 13.8.31 ÷ 1000 =
  14. 14.47.35 × 1000 =
  15. 15.44.57 × 10 =
  16. 16.28.53 × 10 =
  17. 17.178.7 ÷ 100 =
  18. 18.194.4 ÷ 1000 =
  19. 19.101.6 × 10 =
  20. 20.11.02 × 100 =
  21. 21.246.7 × 10 =
  22. 22.394.8 × 100 =
  23. 23.214.7 × 100 =
  24. 24.85.4 × 100 =
  25. 25.37.04 ÷ 1000 =
  26. 26.83.5 ÷ 1000 =
  27. 27.123.8 ÷ 100 =
  28. 28.160.6 × 100 =
  29. 29.13.2 × 10 =
  30. 30.23.42 ÷ 10 =
  31. 31.46.67 ÷ 1000 =
  32. 32.240.9 × 1000 =
  33. 33.1.11 ÷ 10 =
  34. 34.122.6 × 100 =
  35. 35.47.18 × 100 =
  36. 36.4.51 ÷ 100 =
  37. 37.135.6 ÷ 1000 =
  38. 38.42.82 × 100 =
  39. 39.13.05 × 1000 =
  40. 40.244.5 ÷ 1000 =

Answer key

  1. 0.4063
  2. 3.94
  3. 0.4704
  4. 8990
  5. 25.07
  6. 0.4736
  7. 0.0611
  8. 991
  9. 0.02173
  10. 125100
  11. 49650
  12. 0.03122
  13. 0.00831
  14. 47350
  15. 445.7
  16. 285.3
  17. 1.787
  18. 0.1944
  19. 1016
  20. 1102
  21. 2467
  22. 39480
  23. 21470
  24. 8540
  25. 0.03704
  26. 0.0835
  27. 1.238
  28. 16060
  29. 132
  30. 2.342
  31. 0.04667
  32. 240900
  33. 0.111
  34. 12260
  35. 4718
  36. 0.0451
  37. 0.1356
  38. 4282
  39. 13050
  40. 0.2445

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