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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 587 · 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. 1.247.4 ÷ 10 =
  2. 2.3.1 × 10 =
  3. 3.276.9 × 10 =
  4. 4.126.6 × 10 =
  5. 5.336.1 × 10 =
  6. 6.426.1 ÷ 10 =
  7. 7.144.5 × 10 =
  8. 8.36.17 ÷ 10 =
  9. 9.21.1 × 100 =
  10. 10.44.47 ÷ 1000 =
  11. 11.326.8 ÷ 1000 =
  12. 12.61.1 ÷ 100 =
  13. 13.34.24 ÷ 100 =
  14. 14.148.8 × 10 =
  15. 15.14.79 ÷ 10 =
  16. 16.95.4 × 10 =
  17. 17.260.9 ÷ 1000 =
  18. 18.387.6 ÷ 100 =
  19. 19.218.1 ÷ 100 =
  20. 20.35.74 ÷ 1000 =
  21. 21.22.31 × 10 =
  22. 22.417.8 ÷ 10 =
  23. 23.321.6 ÷ 10 =
  24. 24.126.2 ÷ 1000 =
  25. 25.49.95 ÷ 1000 =
  26. 26.239.9 ÷ 1000 =
  27. 27.8.86 × 1000 =
  28. 28.6.31 × 100 =
  29. 29.43.39 ÷ 10 =
  30. 30.255.9 ÷ 1000 =
  31. 31.55.5 ÷ 10 =
  32. 32.41.11 ÷ 100 =
  33. 33.42.77 ÷ 10 =
  34. 34.7.51 × 100 =
  35. 35.37.51 × 100 =
  36. 36.29.27 ÷ 10 =
  37. 37.128.7 ÷ 1000 =
  38. 38.37.05 ÷ 100 =
  39. 39.214.1 ÷ 100 =
  40. 40.86.1 × 100 =

Answer key

  1. 24.74
  2. 31
  3. 2769
  4. 1266
  5. 3361
  6. 42.61
  7. 1445
  8. 3.617
  9. 2110
  10. 0.04447
  11. 0.3268
  12. 0.611
  13. 0.3424
  14. 1488
  15. 1.479
  16. 954
  17. 0.2609
  18. 3.876
  19. 2.181
  20. 0.03574
  21. 223.1
  22. 41.78
  23. 32.16
  24. 0.1262
  25. 0.04995
  26. 0.2399
  27. 8860
  28. 631
  29. 4.339
  30. 0.2559
  31. 5.55
  32. 0.4111
  33. 4.277
  34. 751
  35. 3751
  36. 2.927
  37. 0.1287
  38. 0.3705
  39. 2.141
  40. 8610

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