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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 907 · 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. 1.237.9 × 10 =
  2. 2.385.9 × 10 =
  3. 3.47.18 × 1000 =
  4. 4.6.01 ÷ 1000 =
  5. 5.413.7 ÷ 100 =
  6. 6.5.38 × 10 =
  7. 7.388.1 × 1000 =
  8. 8.13.59 ÷ 10 =
  9. 9.94.6 × 10 =
  10. 10.164.1 × 1000 =
  11. 11.13.76 × 10 =
  12. 12.28.34 ÷ 10 =
  13. 13.28.47 × 100 =
  14. 14.3.45 ÷ 100 =
  15. 15.21.74 ÷ 10 =
  16. 16.27.39 ÷ 1000 =
  17. 17.437.7 ÷ 100 =
  18. 18.45.11 × 1000 =
  19. 19.144.2 ÷ 10 =
  20. 20.31.91 ÷ 1000 =
  21. 21.41.22 × 1000 =
  22. 22.129.5 ÷ 10 =
  23. 23.44.41 ÷ 10 =
  24. 24.24.46 ÷ 100 =
  25. 25.36.76 × 100 =
  26. 26.408.1 ÷ 100 =
  27. 27.96.5 × 1000 =
  28. 28.384.3 × 1000 =
  29. 29.43.02 ÷ 100 =
  30. 30.292.5 ÷ 100 =
  31. 31.250.5 × 10 =
  32. 32.246.4 ÷ 1000 =
  33. 33.45.01 × 100 =
  34. 34.140.7 ÷ 10 =
  35. 35.12.83 × 10 =
  36. 36.143.4 ÷ 1000 =
  37. 37.256.9 × 1000 =
  38. 38.111.8 × 100 =
  39. 39.71.7 ÷ 10 =
  40. 40.12.38 ÷ 100 =

Answer key

  1. 2379
  2. 3859
  3. 47180
  4. 0.00601
  5. 4.137
  6. 53.8
  7. 388100
  8. 1.359
  9. 946
  10. 164100
  11. 137.6
  12. 2.834
  13. 2847
  14. 0.0345
  15. 2.174
  16. 0.02739
  17. 4.377
  18. 45110
  19. 14.42
  20. 0.03191
  21. 41220
  22. 12.95
  23. 4.441
  24. 0.2446
  25. 3676
  26. 4.081
  27. 96500
  28. 384300
  29. 0.4302
  30. 2.925
  31. 2505
  32. 0.2464
  33. 4501
  34. 14.07
  35. 128.3
  36. 0.1434
  37. 256900
  38. 11180
  39. 7.17
  40. 0.1238

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