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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 990 · 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. 1.30.59 ÷ 1000 =
  2. 2.49.33 × 10 =
  3. 3.19.53 × 1000 =
  4. 4.6.7 × 1000 =
  5. 5.24.38 ÷ 1000 =
  6. 6.44.38 ÷ 100 =
  7. 7.28.08 ÷ 100 =
  8. 8.8.21 ÷ 100 =
  9. 9.266.1 ÷ 100 =
  10. 10.17.71 ÷ 100 =
  11. 11.11.32 × 100 =
  12. 12.355.1 × 10 =
  13. 13.496.1 ÷ 10 =
  14. 14.32.25 × 1000 =
  15. 15.2.53 × 10 =
  16. 16.33.34 × 10 =
  17. 17.35.04 × 10 =
  18. 18.446.1 ÷ 10 =
  19. 19.38.82 × 10 =
  20. 20.192.1 ÷ 10 =
  21. 21.29.86 × 100 =
  22. 22.32.21 ÷ 10 =
  23. 23.47.93 ÷ 10 =
  24. 24.140.7 ÷ 10 =
  25. 25.285.5 ÷ 10 =
  26. 26.208.5 × 100 =
  27. 27.30.31 ÷ 10 =
  28. 28.151.7 ÷ 10 =
  29. 29.118.3 × 10 =
  30. 30.72.4 × 10 =
  31. 31.1.05 ÷ 10 =
  32. 32.374.8 × 100 =
  33. 33.402.5 × 1000 =
  34. 34.122.5 × 100 =
  35. 35.469.1 × 10 =
  36. 36.368.5 × 1000 =
  37. 37.3.98 ÷ 100 =
  38. 38.20.35 ÷ 1000 =
  39. 39.230.1 ÷ 100 =
  40. 40.25.82 ÷ 1000 =

Answer key

  1. 0.03059
  2. 493.3
  3. 19530
  4. 6700
  5. 0.02438
  6. 0.4438
  7. 0.2808
  8. 0.0821
  9. 2.661
  10. 0.1771
  11. 1132
  12. 3551
  13. 49.61
  14. 32250
  15. 25.3
  16. 333.4
  17. 350.4
  18. 44.61
  19. 388.2
  20. 19.21
  21. 2986
  22. 3.221
  23. 4.793
  24. 14.07
  25. 28.55
  26. 20850
  27. 3.031
  28. 15.17
  29. 1183
  30. 724
  31. 0.105
  32. 37480
  33. 402500
  34. 12250
  35. 4691
  36. 368500
  37. 0.0398
  38. 0.02035
  39. 2.301
  40. 0.02582

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