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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 493 · 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. 1.13.69 ÷ 100 =
  2. 2.44.35 × 1000 =
  3. 3.163.4 × 100 =
  4. 4.176.4 × 1000 =
  5. 5.44.29 ÷ 10 =
  6. 6.22.32 ÷ 1000 =
  7. 7.10.8 × 10 =
  8. 8.41.3 × 10 =
  9. 9.49.6 × 100 =
  10. 10.7.08 × 1000 =
  11. 11.437.6 ÷ 10 =
  12. 12.120.1 × 10 =
  13. 13.40.87 × 100 =
  14. 14.255.6 × 10 =
  15. 15.8.68 × 10 =
  16. 16.11.83 ÷ 10 =
  17. 17.473.9 ÷ 100 =
  18. 18.341.2 × 10 =
  19. 19.26.97 × 10 =
  20. 20.18.96 × 100 =
  21. 21.303.6 ÷ 1000 =
  22. 22.40.45 × 10 =
  23. 23.371.8 ÷ 100 =
  24. 24.20.38 × 10 =
  25. 25.285.6 ÷ 1000 =
  26. 26.14.72 ÷ 100 =
  27. 27.123.1 ÷ 10 =
  28. 28.199.5 × 1000 =
  29. 29.1.71 × 100 =
  30. 30.19.04 ÷ 100 =
  31. 31.375.9 ÷ 100 =
  32. 32.4.77 ÷ 1000 =
  33. 33.24.68 × 10 =
  34. 34.315.8 × 10 =
  35. 35.161.9 × 10 =
  36. 36.0.91 ÷ 100 =
  37. 37.370.7 × 1000 =
  38. 38.23.76 × 1000 =
  39. 39.18.81 × 10 =
  40. 40.430.4 ÷ 10 =

Answer key

  1. 0.1369
  2. 44350
  3. 16340
  4. 176400
  5. 4.429
  6. 0.02232
  7. 108
  8. 413
  9. 4960
  10. 7080
  11. 43.76
  12. 1201
  13. 4087
  14. 2556
  15. 86.8
  16. 1.183
  17. 4.739
  18. 3412
  19. 269.7
  20. 1896
  21. 0.3036
  22. 404.5
  23. 3.718
  24. 203.8
  25. 0.2856
  26. 0.1472
  27. 12.31
  28. 199500
  29. 171
  30. 0.1904
  31. 3.759
  32. 0.00477
  33. 246.8
  34. 3158
  35. 1619
  36. 0.0091
  37. 370700
  38. 23760
  39. 188.1
  40. 43.04

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