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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 900 · 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. 1.418.6 ÷ 1000 =
  2. 2.267.8 ÷ 100 =
  3. 3.162.5 × 100 =
  4. 4.14.81 ÷ 1000 =
  5. 5.453.1 ÷ 10 =
  6. 6.228.5 × 1000 =
  7. 7.8.45 ÷ 10 =
  8. 8.261.1 × 100 =
  9. 9.231.6 × 10 =
  10. 10.26.93 × 10 =
  11. 11.49.41 ÷ 10 =
  12. 12.37.6 ÷ 1000 =
  13. 13.30.7 × 100 =
  14. 14.214.5 ÷ 100 =
  15. 15.47.01 ÷ 100 =
  16. 16.289.7 ÷ 100 =
  17. 17.452.8 × 10 =
  18. 18.382.5 ÷ 10 =
  19. 19.4.43 × 100 =
  20. 20.279.6 ÷ 1000 =
  21. 21.30.01 ÷ 10 =
  22. 22.27.51 × 100 =
  23. 23.402.7 ÷ 1000 =
  24. 24.23.09 ÷ 100 =
  25. 25.6.48 × 10 =
  26. 26.125.1 ÷ 1000 =
  27. 27.38.55 × 10 =
  28. 28.10.45 × 100 =
  29. 29.6.96 × 100 =
  30. 30.17.84 ÷ 10 =
  31. 31.27.81 × 1000 =
  32. 32.34.02 ÷ 10 =
  33. 33.11.6 × 1000 =
  34. 34.397.9 ÷ 10 =
  35. 35.3.94 × 1000 =
  36. 36.366.4 × 100 =
  37. 37.36.44 × 1000 =
  38. 38.36.8 × 100 =
  39. 39.49.74 × 1000 =
  40. 40.27.36 × 100 =

Answer key

  1. 0.4186
  2. 2.678
  3. 16250
  4. 0.01481
  5. 45.31
  6. 228500
  7. 0.845
  8. 26110
  9. 2316
  10. 269.3
  11. 4.941
  12. 0.0376
  13. 3070
  14. 2.145
  15. 0.4701
  16. 2.897
  17. 4528
  18. 38.25
  19. 443
  20. 0.2796
  21. 3.001
  22. 2751
  23. 0.4027
  24. 0.2309
  25. 64.8
  26. 0.1251
  27. 385.5
  28. 1045
  29. 696
  30. 1.784
  31. 27810
  32. 3.402
  33. 11600
  34. 39.79
  35. 3940
  36. 36640
  37. 36440
  38. 3680
  39. 49740
  40. 2736

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