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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 517 · 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. 1.45.96 ÷ 1000 =
  2. 2.375.8 × 10 =
  3. 3.105.9 × 10 =
  4. 4.213.2 × 1000 =
  5. 5.428.5 × 10 =
  6. 6.5.56 ÷ 1000 =
  7. 7.48.38 ÷ 10 =
  8. 8.272.2 ÷ 1000 =
  9. 9.196.8 ÷ 10 =
  10. 10.6.89 ÷ 1000 =
  11. 11.242.2 × 100 =
  12. 12.20.11 × 1000 =
  13. 13.1.81 ÷ 1000 =
  14. 14.7.55 ÷ 10 =
  15. 15.262.6 × 1000 =
  16. 16.4.39 ÷ 1000 =
  17. 17.491.9 × 1000 =
  18. 18.127.3 × 10 =
  19. 19.16.43 × 1000 =
  20. 20.155.5 × 1000 =
  21. 21.338.2 ÷ 1000 =
  22. 22.460.2 ÷ 10 =
  23. 23.332.3 × 10 =
  24. 24.409.3 ÷ 1000 =
  25. 25.0.53 ÷ 10 =
  26. 26.436.7 ÷ 10 =
  27. 27.410.2 ÷ 10 =
  28. 28.34.84 × 1000 =
  29. 29.432.4 ÷ 100 =
  30. 30.43.01 × 1000 =
  31. 31.40.21 ÷ 10 =
  32. 32.16.21 × 1000 =
  33. 33.453.9 ÷ 1000 =
  34. 34.312.3 × 100 =
  35. 35.395.4 × 10 =
  36. 36.10.3 × 100 =
  37. 37.2.07 × 100 =
  38. 38.42.43 ÷ 1000 =
  39. 39.6.65 ÷ 10 =
  40. 40.28.62 × 1000 =

Answer key

  1. 0.04596
  2. 3758
  3. 1059
  4. 213200
  5. 4285
  6. 0.00556
  7. 4.838
  8. 0.2722
  9. 19.68
  10. 0.00689
  11. 24220
  12. 20110
  13. 0.00181
  14. 0.755
  15. 262600
  16. 0.00439
  17. 491900
  18. 1273
  19. 16430
  20. 155500
  21. 0.3382
  22. 46.02
  23. 3323
  24. 0.4093
  25. 0.053
  26. 43.67
  27. 41.02
  28. 34840
  29. 4.324
  30. 43010
  31. 4.021
  32. 16210
  33. 0.4539
  34. 31230
  35. 3954
  36. 1030
  37. 207
  38. 0.04243
  39. 0.665
  40. 28620

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