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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 147 · 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. 1.419.3 ÷ 100 =
  2. 2.4.09 ÷ 1000 =
  3. 3.33.27 × 1000 =
  4. 4.455.1 × 10 =
  5. 5.22.39 × 1000 =
  6. 6.9.89 ÷ 100 =
  7. 7.39.67 ÷ 100 =
  8. 8.202.8 × 10 =
  9. 9.45.32 ÷ 100 =
  10. 10.145.9 × 10 =
  11. 11.22.27 ÷ 10 =
  12. 12.32.09 × 100 =
  13. 13.252.3 × 1000 =
  14. 14.154.5 ÷ 10 =
  15. 15.18.67 ÷ 10 =
  16. 16.128.6 × 100 =
  17. 17.30.1 ÷ 100 =
  18. 18.2.65 ÷ 100 =
  19. 19.42.91 ÷ 10 =
  20. 20.57.2 × 10 =
  21. 21.197.8 ÷ 1000 =
  22. 22.408.9 ÷ 100 =
  23. 23.14.8 × 10 =
  24. 24.110.7 × 1000 =
  25. 25.152.8 ÷ 10 =
  26. 26.48.01 × 100 =
  27. 27.435.5 × 100 =
  28. 28.490.2 ÷ 100 =
  29. 29.28.31 × 1000 =
  30. 30.28.79 ÷ 10 =
  31. 31.429.4 × 100 =
  32. 32.32.51 × 1000 =
  33. 33.43.7 ÷ 1000 =
  34. 34.250.8 ÷ 1000 =
  35. 35.22.01 × 1000 =
  36. 36.210.9 × 1000 =
  37. 37.11.19 ÷ 1000 =
  38. 38.4.71 × 100 =
  39. 39.14.11 ÷ 1000 =
  40. 40.133.1 × 10 =

Answer key

  1. 4.193
  2. 0.00409
  3. 33270
  4. 4551
  5. 22390
  6. 0.0989
  7. 0.3967
  8. 2028
  9. 0.4532
  10. 1459
  11. 2.227
  12. 3209
  13. 252300
  14. 15.45
  15. 1.867
  16. 12860
  17. 0.301
  18. 0.0265
  19. 4.291
  20. 572
  21. 0.1978
  22. 4.089
  23. 148
  24. 110700
  25. 15.28
  26. 4801
  27. 43550
  28. 4.902
  29. 28310
  30. 2.879
  31. 42940
  32. 32510
  33. 0.0437
  34. 0.2508
  35. 22010
  36. 210900
  37. 0.01119
  38. 471
  39. 0.01411
  40. 1331

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