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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 816 · 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. 1.37.36 × 1000 =
  2. 2.11.31 × 100 =
  3. 3.203.4 ÷ 1000 =
  4. 4.26.81 × 100 =
  5. 5.16.7 ÷ 100 =
  6. 6.305.1 ÷ 1000 =
  7. 7.421.8 ÷ 10 =
  8. 8.48.01 ÷ 10 =
  9. 9.490.1 × 1000 =
  10. 10.15.61 × 10 =
  11. 11.407.6 ÷ 1000 =
  12. 12.18.12 ÷ 100 =
  13. 13.380.9 × 100 =
  14. 14.245.8 × 10 =
  15. 15.112.2 × 1000 =
  16. 16.48.72 ÷ 100 =
  17. 17.217.2 × 100 =
  18. 18.0.62 × 1000 =
  19. 19.46.9 ÷ 10 =
  20. 20.391.5 × 10 =
  21. 21.304.7 ÷ 10 =
  22. 22.420.8 ÷ 10 =
  23. 23.3.34 ÷ 1000 =
  24. 24.39.32 ÷ 100 =
  25. 25.10.14 ÷ 1000 =
  26. 26.12.61 × 10 =
  27. 27.14.19 × 10 =
  28. 28.474.9 × 100 =
  29. 29.83.6 × 1000 =
  30. 30.10.61 × 1000 =
  31. 31.59.6 ÷ 10 =
  32. 32.37.01 × 100 =
  33. 33.254.1 ÷ 100 =
  34. 34.21.68 ÷ 10 =
  35. 35.30.81 ÷ 10 =
  36. 36.328.1 ÷ 1000 =
  37. 37.303.5 ÷ 10 =
  38. 38.23.75 ÷ 10 =
  39. 39.5.94 × 10 =
  40. 40.48.87 ÷ 10 =

Answer key

  1. 37360
  2. 1131
  3. 0.2034
  4. 2681
  5. 0.167
  6. 0.3051
  7. 42.18
  8. 4.801
  9. 490100
  10. 156.1
  11. 0.4076
  12. 0.1812
  13. 38090
  14. 2458
  15. 112200
  16. 0.4872
  17. 21720
  18. 620
  19. 4.69
  20. 3915
  21. 30.47
  22. 42.08
  23. 0.00334
  24. 0.3932
  25. 0.01014
  26. 126.1
  27. 141.9
  28. 47490
  29. 83600
  30. 10610
  31. 5.96
  32. 3701
  33. 2.541
  34. 2.168
  35. 3.081
  36. 0.3281
  37. 30.35
  38. 2.375
  39. 59.4
  40. 4.887

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