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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 582 · 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. 1.34.55 × 10 =
  2. 2.452.7 ÷ 1000 =
  3. 3.22.02 × 10 =
  4. 4.254.7 × 10 =
  5. 5.368.5 × 10 =
  6. 6.29.31 ÷ 1000 =
  7. 7.305.1 ÷ 100 =
  8. 8.61.5 × 10 =
  9. 9.325.1 ÷ 1000 =
  10. 10.3.31 × 10 =
  11. 11.3.81 × 100 =
  12. 12.302.7 × 10 =
  13. 13.261.4 × 10 =
  14. 14.201.4 ÷ 1000 =
  15. 15.112.6 ÷ 100 =
  16. 16.406.1 × 1000 =
  17. 17.373.9 × 10 =
  18. 18.160.1 ÷ 10 =
  19. 19.26.79 × 10 =
  20. 20.277.1 × 10 =
  21. 21.191.3 ÷ 10 =
  22. 22.182.1 ÷ 10 =
  23. 23.8.3 ÷ 100 =
  24. 24.457.4 ÷ 100 =
  25. 25.12.66 × 100 =
  26. 26.29.05 × 100 =
  27. 27.190.5 ÷ 100 =
  28. 28.315.3 × 100 =
  29. 29.42.83 × 100 =
  30. 30.35.11 × 10 =
  31. 31.49.55 × 100 =
  32. 32.127.7 × 100 =
  33. 33.45.95 ÷ 100 =
  34. 34.46.33 ÷ 10 =
  35. 35.32.19 × 100 =
  36. 36.39.99 ÷ 10 =
  37. 37.472.9 ÷ 1000 =
  38. 38.32.87 ÷ 10 =
  39. 39.32.88 ÷ 10 =
  40. 40.411.2 ÷ 1000 =

Answer key

  1. 345.5
  2. 0.4527
  3. 220.2
  4. 2547
  5. 3685
  6. 0.02931
  7. 3.051
  8. 615
  9. 0.3251
  10. 33.1
  11. 381
  12. 3027
  13. 2614
  14. 0.2014
  15. 1.126
  16. 406100
  17. 3739
  18. 16.01
  19. 267.9
  20. 2771
  21. 19.13
  22. 18.21
  23. 0.083
  24. 4.574
  25. 1266
  26. 2905
  27. 1.905
  28. 31530
  29. 4283
  30. 351.1
  31. 4955
  32. 12770
  33. 0.4595
  34. 4.633
  35. 3219
  36. 3.999
  37. 0.4729
  38. 3.287
  39. 3.288
  40. 0.4112

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