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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 947 · 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. 1.361.3 × 10 =
  2. 2.383.4 × 100 =
  3. 3.227.4 × 10 =
  4. 4.26.65 ÷ 10 =
  5. 5.230.3 ÷ 100 =
  6. 6.10.64 ÷ 100 =
  7. 7.23.31 ÷ 100 =
  8. 8.218.1 × 1000 =
  9. 9.124.1 × 1000 =
  10. 10.73.7 × 100 =
  11. 11.5.57 ÷ 10 =
  12. 12.47.88 ÷ 10 =
  13. 13.114.1 × 100 =
  14. 14.124.9 × 100 =
  15. 15.33.02 ÷ 100 =
  16. 16.149.6 ÷ 10 =
  17. 17.0.63 ÷ 1000 =
  18. 18.11.95 ÷ 100 =
  19. 19.314.6 ÷ 10 =
  20. 20.171.4 × 1000 =
  21. 21.49.23 × 1000 =
  22. 22.9.34 ÷ 100 =
  23. 23.9.84 ÷ 100 =
  24. 24.6.7 × 100 =
  25. 25.36.81 ÷ 10 =
  26. 26.45.59 ÷ 100 =
  27. 27.322.2 ÷ 10 =
  28. 28.46.18 ÷ 1000 =
  29. 29.37.6 × 100 =
  30. 30.19.22 × 10 =
  31. 31.5.58 × 10 =
  32. 32.100.1 ÷ 10 =
  33. 33.149.8 × 1000 =
  34. 34.25.52 ÷ 10 =
  35. 35.32.47 ÷ 1000 =
  36. 36.14.41 ÷ 10 =
  37. 37.6.51 × 10 =
  38. 38.2.27 × 1000 =
  39. 39.48.99 ÷ 1000 =
  40. 40.147.7 ÷ 100 =

Answer key

  1. 3613
  2. 38340
  3. 2274
  4. 2.665
  5. 2.303
  6. 0.1064
  7. 0.2331
  8. 218100
  9. 124100
  10. 7370
  11. 0.557
  12. 4.788
  13. 11410
  14. 12490
  15. 0.3302
  16. 14.96
  17. 0.00063
  18. 0.1195
  19. 31.46
  20. 171400
  21. 49230
  22. 0.0934
  23. 0.0984
  24. 670
  25. 3.681
  26. 0.4559
  27. 32.22
  28. 0.04618
  29. 3760
  30. 192.2
  31. 55.8
  32. 10.01
  33. 149800
  34. 2.552
  35. 0.03247
  36. 1.441
  37. 65.1
  38. 2270
  39. 0.04899
  40. 1.477

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