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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 51 · 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. 1.101.1 × 1000 =
  2. 2.36.53 ÷ 10 =
  3. 3.24.28 ÷ 100 =
  4. 4.29.51 ÷ 100 =
  5. 5.92.8 ÷ 100 =
  6. 6.9.05 ÷ 10 =
  7. 7.483.6 ÷ 1000 =
  8. 8.21.26 × 10 =
  9. 9.212.2 ÷ 100 =
  10. 10.49.19 × 1000 =
  11. 11.19.23 × 10 =
  12. 12.21.52 × 1000 =
  13. 13.7.77 × 10 =
  14. 14.211.3 ÷ 100 =
  15. 15.201.1 ÷ 10 =
  16. 16.0.25 × 1000 =
  17. 17.494.4 × 1000 =
  18. 18.16.07 ÷ 100 =
  19. 19.369.1 × 1000 =
  20. 20.24.46 ÷ 10 =
  21. 21.265.1 × 1000 =
  22. 22.16.16 × 10 =
  23. 23.33.48 ÷ 1000 =
  24. 24.48.44 ÷ 1000 =
  25. 25.14.31 ÷ 1000 =
  26. 26.251.3 ÷ 1000 =
  27. 27.233.2 ÷ 1000 =
  28. 28.333.6 ÷ 1000 =
  29. 29.45.33 ÷ 100 =
  30. 30.49.98 × 1000 =
  31. 31.246.9 × 10 =
  32. 32.27.17 ÷ 100 =
  33. 33.280.3 × 10 =
  34. 34.320.7 ÷ 10 =
  35. 35.12.68 ÷ 1000 =
  36. 36.30.89 × 100 =
  37. 37.70.4 ÷ 100 =
  38. 38.263.3 × 1000 =
  39. 39.43.1 × 10 =
  40. 40.59.9 × 1000 =

Answer key

  1. 101100
  2. 3.653
  3. 0.2428
  4. 0.2951
  5. 0.928
  6. 0.905
  7. 0.4836
  8. 212.6
  9. 2.122
  10. 49190
  11. 192.3
  12. 21520
  13. 77.7
  14. 2.113
  15. 20.11
  16. 250
  17. 494400
  18. 0.1607
  19. 369100
  20. 2.446
  21. 265100
  22. 161.6
  23. 0.03348
  24. 0.04844
  25. 0.01431
  26. 0.2513
  27. 0.2332
  28. 0.3336
  29. 0.4533
  30. 49980
  31. 2469
  32. 0.2717
  33. 2803
  34. 32.07
  35. 0.01268
  36. 3089
  37. 0.704
  38. 263300
  39. 431
  40. 59900

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