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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 858 · 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. 1.481.1 × 100 =
  2. 2.90.9 × 10 =
  3. 3.29.78 ÷ 100 =
  4. 4.27.89 × 1000 =
  5. 5.10.17 × 1000 =
  6. 6.314.4 ÷ 100 =
  7. 7.31.01 ÷ 1000 =
  8. 8.27.55 × 1000 =
  9. 9.18.59 × 1000 =
  10. 10.9.11 ÷ 1000 =
  11. 11.26.71 × 10 =
  12. 12.7.7 ÷ 100 =
  13. 13.471.2 × 100 =
  14. 14.8.51 ÷ 10 =
  15. 15.225.5 ÷ 1000 =
  16. 16.11.06 ÷ 1000 =
  17. 17.15.24 ÷ 100 =
  18. 18.449.4 ÷ 1000 =
  19. 19.18.61 × 100 =
  20. 20.30.5 ÷ 100 =
  21. 21.492.1 ÷ 100 =
  22. 22.28.89 ÷ 100 =
  23. 23.286.6 × 100 =
  24. 24.248.1 ÷ 1000 =
  25. 25.400.3 ÷ 10 =
  26. 26.48.16 ÷ 100 =
  27. 27.28.61 × 100 =
  28. 28.27.29 ÷ 1000 =
  29. 29.78.9 × 100 =
  30. 30.3.82 × 1000 =
  31. 31.77.8 ÷ 100 =
  32. 32.32.22 ÷ 1000 =
  33. 33.200.9 ÷ 100 =
  34. 34.385.4 ÷ 100 =
  35. 35.47.78 × 1000 =
  36. 36.28.61 × 100 =
  37. 37.32.73 × 100 =
  38. 38.249.6 ÷ 1000 =
  39. 39.7.61 ÷ 1000 =
  40. 40.52.6 ÷ 100 =

Answer key

  1. 48110
  2. 909
  3. 0.2978
  4. 27890
  5. 10170
  6. 3.144
  7. 0.03101
  8. 27550
  9. 18590
  10. 0.00911
  11. 267.1
  12. 0.077
  13. 47120
  14. 0.851
  15. 0.2255
  16. 0.01106
  17. 0.1524
  18. 0.4494
  19. 1861
  20. 0.305
  21. 4.921
  22. 0.2889
  23. 28660
  24. 0.2481
  25. 40.03
  26. 0.4816
  27. 2861
  28. 0.02729
  29. 7890
  30. 3820
  31. 0.778
  32. 0.03222
  33. 2.009
  34. 3.854
  35. 47780
  36. 2861
  37. 3273
  38. 0.2496
  39. 0.00761
  40. 0.526

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