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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 653 · 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. 1.6.74 ÷ 100 =
  2. 2.22.92 ÷ 1000 =
  3. 3.34.87 ÷ 10 =
  4. 4.45.3 ÷ 100 =
  5. 5.273.3 × 1000 =
  6. 6.7.01 × 1000 =
  7. 7.345.3 × 10 =
  8. 8.174.1 ÷ 100 =
  9. 9.34.21 ÷ 10 =
  10. 10.10.99 × 10 =
  11. 11.32.98 ÷ 100 =
  12. 12.7.71 ÷ 100 =
  13. 13.47.87 × 1000 =
  14. 14.38.63 ÷ 1000 =
  15. 15.10.48 ÷ 10 =
  16. 16.262.4 ÷ 1000 =
  17. 17.228.6 × 1000 =
  18. 18.51.1 × 10 =
  19. 19.92.8 × 10 =
  20. 20.41.63 × 10 =
  21. 21.7.43 ÷ 1000 =
  22. 22.161.5 × 1000 =
  23. 23.108.9 × 100 =
  24. 24.91.7 × 1000 =
  25. 25.49.5 ÷ 10 =
  26. 26.24.61 × 100 =
  27. 27.31.06 × 10 =
  28. 28.27.77 ÷ 10 =
  29. 29.8.29 ÷ 1000 =
  30. 30.128.1 × 100 =
  31. 31.12.84 × 10 =
  32. 32.28.27 × 1000 =
  33. 33.126.1 ÷ 10 =
  34. 34.478.6 ÷ 100 =
  35. 35.49.4 × 1000 =
  36. 36.386.3 ÷ 100 =
  37. 37.48.84 × 10 =
  38. 38.398.9 × 10 =
  39. 39.72.1 × 1000 =
  40. 40.38.41 ÷ 10 =

Answer key

  1. 0.0674
  2. 0.02292
  3. 3.487
  4. 0.453
  5. 273300
  6. 7010
  7. 3453
  8. 1.741
  9. 3.421
  10. 109.9
  11. 0.3298
  12. 0.0771
  13. 47870
  14. 0.03863
  15. 1.048
  16. 0.2624
  17. 228600
  18. 511
  19. 928
  20. 416.3
  21. 0.00743
  22. 161500
  23. 10890
  24. 91700
  25. 4.95
  26. 2461
  27. 310.6
  28. 2.777
  29. 0.00829
  30. 12810
  31. 128.4
  32. 28270
  33. 12.61
  34. 4.786
  35. 49400
  36. 3.863
  37. 488.4
  38. 3989
  39. 72100
  40. 3.841

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