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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 958 · 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. 1.5.31 × 1000 =
  2. 2.43.97 ÷ 100 =
  3. 3.472.2 × 100 =
  4. 4.24.68 ÷ 100 =
  5. 5.48.31 ÷ 100 =
  6. 6.51.1 ÷ 1000 =
  7. 7.134.1 ÷ 1000 =
  8. 8.20.07 × 10 =
  9. 9.274.8 × 10 =
  10. 10.30.35 ÷ 1000 =
  11. 11.5.71 ÷ 10 =
  12. 12.123.7 × 100 =
  13. 13.43.55 ÷ 100 =
  14. 14.15.51 ÷ 10 =
  15. 15.21.98 ÷ 1000 =
  16. 16.30.4 ÷ 100 =
  17. 17.170.1 × 10 =
  18. 18.3.81 ÷ 1000 =
  19. 19.25.65 ÷ 1000 =
  20. 20.16.21 ÷ 10 =
  21. 21.20.83 ÷ 10 =
  22. 22.37.06 ÷ 1000 =
  23. 23.413.9 × 10 =
  24. 24.5.41 ÷ 100 =
  25. 25.80.2 × 1000 =
  26. 26.446.1 × 10 =
  27. 27.49.55 ÷ 1000 =
  28. 28.29.87 ÷ 100 =
  29. 29.317.1 ÷ 1000 =
  30. 30.288.1 × 1000 =
  31. 31.443.4 × 1000 =
  32. 32.116.8 ÷ 100 =
  33. 33.20.01 × 1000 =
  34. 34.390.9 ÷ 10 =
  35. 35.469.6 ÷ 1000 =
  36. 36.102.3 ÷ 10 =
  37. 37.11.09 ÷ 100 =
  38. 38.373.6 ÷ 100 =
  39. 39.32.95 × 10 =
  40. 40.425.1 ÷ 1000 =

Answer key

  1. 5310
  2. 0.4397
  3. 47220
  4. 0.2468
  5. 0.4831
  6. 0.0511
  7. 0.1341
  8. 200.7
  9. 2748
  10. 0.03035
  11. 0.571
  12. 12370
  13. 0.4355
  14. 1.551
  15. 0.02198
  16. 0.304
  17. 1701
  18. 0.00381
  19. 0.02565
  20. 1.621
  21. 2.083
  22. 0.03706
  23. 4139
  24. 0.0541
  25. 80200
  26. 4461
  27. 0.04955
  28. 0.2987
  29. 0.3171
  30. 288100
  31. 443400
  32. 1.168
  33. 20010
  34. 39.09
  35. 0.4696
  36. 10.23
  37. 0.1109
  38. 3.736
  39. 329.5
  40. 0.4251

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