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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 352 · 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. 1.2.94 ÷ 10 =
  2. 2.290.3 ÷ 100 =
  3. 3.4.41 × 10 =
  4. 4.5.21 × 100 =
  5. 5.192.1 × 1000 =
  6. 6.4.82 ÷ 100 =
  7. 7.316.3 ÷ 10 =
  8. 8.89.9 × 1000 =
  9. 9.120.5 × 100 =
  10. 10.25.38 ÷ 10 =
  11. 11.236.4 ÷ 10 =
  12. 12.46.5 ÷ 100 =
  13. 13.184.4 ÷ 100 =
  14. 14.317.4 ÷ 10 =
  15. 15.20.56 × 1000 =
  16. 16.43.27 × 10 =
  17. 17.31.2 × 100 =
  18. 18.418.3 ÷ 1000 =
  19. 19.216.8 × 10 =
  20. 20.30.89 ÷ 1000 =
  21. 21.268.3 × 1000 =
  22. 22.348.7 ÷ 10 =
  23. 23.46.42 × 100 =
  24. 24.242.9 ÷ 10 =
  25. 25.26.09 ÷ 100 =
  26. 26.160.7 × 1000 =
  27. 27.202.7 × 10 =
  28. 28.37.2 × 100 =
  29. 29.29.66 × 100 =
  30. 30.450.6 ÷ 1000 =
  31. 31.13.18 ÷ 10 =
  32. 32.203.3 × 100 =
  33. 33.484.6 ÷ 10 =
  34. 34.25.05 ÷ 1000 =
  35. 35.11.8 ÷ 100 =
  36. 36.169.1 ÷ 1000 =
  37. 37.9.89 × 100 =
  38. 38.47.1 ÷ 10 =
  39. 39.1.65 × 10 =
  40. 40.134.4 × 100 =

Answer key

  1. 0.294
  2. 2.903
  3. 44.1
  4. 521
  5. 192100
  6. 0.0482
  7. 31.63
  8. 89900
  9. 12050
  10. 2.538
  11. 23.64
  12. 0.465
  13. 1.844
  14. 31.74
  15. 20560
  16. 432.7
  17. 3120
  18. 0.4183
  19. 2168
  20. 0.03089
  21. 268300
  22. 34.87
  23. 4642
  24. 24.29
  25. 0.2609
  26. 160700
  27. 2027
  28. 3720
  29. 2966
  30. 0.4506
  31. 1.318
  32. 20330
  33. 48.46
  34. 0.02505
  35. 0.118
  36. 0.1691
  37. 989
  38. 4.71
  39. 16.5
  40. 13440

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