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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 27 · 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. 1.275.3 × 100 =
  2. 2.11.52 × 10 =
  3. 3.25.74 ÷ 100 =
  4. 4.327.9 ÷ 1000 =
  5. 5.278.8 × 10 =
  6. 6.47.45 × 100 =
  7. 7.98.9 × 100 =
  8. 8.45.57 × 1000 =
  9. 9.23.76 × 1000 =
  10. 10.412.9 ÷ 1000 =
  11. 11.171.5 ÷ 1000 =
  12. 12.129.7 ÷ 100 =
  13. 13.40.24 × 10 =
  14. 14.46.09 × 10 =
  15. 15.79.1 ÷ 1000 =
  16. 16.13.43 ÷ 10 =
  17. 17.233.4 × 1000 =
  18. 18.213.5 × 100 =
  19. 19.61.3 ÷ 100 =
  20. 20.82.9 ÷ 100 =
  21. 21.29.77 × 10 =
  22. 22.6.85 ÷ 1000 =
  23. 23.450.6 × 100 =
  24. 24.292.8 × 10 =
  25. 25.464.4 × 100 =
  26. 26.11.65 ÷ 1000 =
  27. 27.33.21 × 100 =
  28. 28.345.7 ÷ 10 =
  29. 29.26.87 × 10 =
  30. 30.15.24 × 10 =
  31. 31.30.26 ÷ 1000 =
  32. 32.238.1 ÷ 10 =
  33. 33.12.96 ÷ 1000 =
  34. 34.172.5 ÷ 100 =
  35. 35.13.02 × 100 =
  36. 36.336.4 × 10 =
  37. 37.8.39 ÷ 100 =
  38. 38.26.37 × 100 =
  39. 39.6.33 × 1000 =
  40. 40.476.7 ÷ 1000 =

Answer key

  1. 27530
  2. 115.2
  3. 0.2574
  4. 0.3279
  5. 2788
  6. 4745
  7. 9890
  8. 45570
  9. 23760
  10. 0.4129
  11. 0.1715
  12. 1.297
  13. 402.4
  14. 460.9
  15. 0.0791
  16. 1.343
  17. 233400
  18. 21350
  19. 0.613
  20. 0.829
  21. 297.7
  22. 0.00685
  23. 45060
  24. 2928
  25. 46440
  26. 0.01165
  27. 3321
  28. 34.57
  29. 268.7
  30. 152.4
  31. 0.03026
  32. 23.81
  33. 0.01296
  34. 1.725
  35. 1302
  36. 3364
  37. 0.0839
  38. 2637
  39. 6330
  40. 0.4767

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