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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 976 · 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. 1.27.68 ÷ 10 =
  2. 2.448.6 × 100 =
  3. 3.157.2 ÷ 10 =
  4. 4.243.8 × 10 =
  5. 5.294.2 × 100 =
  6. 6.47.86 ÷ 10 =
  7. 7.233.7 ÷ 10 =
  8. 8.40.79 × 1000 =
  9. 9.124.9 × 1000 =
  10. 10.315.3 × 10 =
  11. 11.156.7 × 10 =
  12. 12.17.77 × 10 =
  13. 13.140.5 ÷ 1000 =
  14. 14.229.4 × 10 =
  15. 15.431.7 × 100 =
  16. 16.47.86 × 10 =
  17. 17.31.5 × 10 =
  18. 18.48.36 × 10 =
  19. 19.345.2 ÷ 10 =
  20. 20.16.36 ÷ 1000 =
  21. 21.9.64 × 1000 =
  22. 22.20.28 ÷ 100 =
  23. 23.245.8 × 10 =
  24. 24.37.66 ÷ 1000 =
  25. 25.9.62 × 100 =
  26. 26.154.2 × 100 =
  27. 27.4.45 × 10 =
  28. 28.43.77 × 10 =
  29. 29.38.96 × 10 =
  30. 30.13.64 ÷ 1000 =
  31. 31.432.5 ÷ 1000 =
  32. 32.34.53 × 100 =
  33. 33.307.2 × 1000 =
  34. 34.40.82 × 10 =
  35. 35.113.6 ÷ 10 =
  36. 36.27.33 × 100 =
  37. 37.468.2 × 100 =
  38. 38.17.54 ÷ 10 =
  39. 39.16.84 ÷ 100 =
  40. 40.390.5 ÷ 10 =

Answer key

  1. 2.768
  2. 44860
  3. 15.72
  4. 2438
  5. 29420
  6. 4.786
  7. 23.37
  8. 40790
  9. 124900
  10. 3153
  11. 1567
  12. 177.7
  13. 0.1405
  14. 2294
  15. 43170
  16. 478.6
  17. 315
  18. 483.6
  19. 34.52
  20. 0.01636
  21. 9640
  22. 0.2028
  23. 2458
  24. 0.03766
  25. 962
  26. 15420
  27. 44.5
  28. 437.7
  29. 389.6
  30. 0.01364
  31. 0.4325
  32. 3453
  33. 307200
  34. 408.2
  35. 11.36
  36. 2733
  37. 46820
  38. 1.754
  39. 0.1684
  40. 39.05

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