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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 585 · 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. 1.5.7 ÷ 1000 =
  2. 2.18.84 × 10 =
  3. 3.9.77 ÷ 100 =
  4. 4.14.34 × 1000 =
  5. 5.219.4 × 100 =
  6. 6.292.1 ÷ 1000 =
  7. 7.14.41 × 100 =
  8. 8.490.8 × 100 =
  9. 9.44.26 × 10 =
  10. 10.13.43 × 100 =
  11. 11.27.84 × 1000 =
  12. 12.39.31 ÷ 100 =
  13. 13.472.9 × 100 =
  14. 14.34.11 × 100 =
  15. 15.21.41 × 100 =
  16. 16.13.2 ÷ 1000 =
  17. 17.12.37 × 100 =
  18. 18.6.03 × 1000 =
  19. 19.7.96 × 100 =
  20. 20.12.56 ÷ 10 =
  21. 21.20.05 ÷ 10 =
  22. 22.370.5 ÷ 100 =
  23. 23.473.5 × 10 =
  24. 24.237.3 ÷ 100 =
  25. 25.459.1 × 10 =
  26. 26.164.4 × 10 =
  27. 27.96.2 × 1000 =
  28. 28.16.11 ÷ 10 =
  29. 29.359.4 × 100 =
  30. 30.376.4 × 1000 =
  31. 31.20.04 ÷ 10 =
  32. 32.1.27 ÷ 10 =
  33. 33.407.9 × 10 =
  34. 34.426.1 ÷ 100 =
  35. 35.249.4 ÷ 1000 =
  36. 36.26.77 × 1000 =
  37. 37.146.7 × 1000 =
  38. 38.13.98 × 10 =
  39. 39.5.86 ÷ 10 =
  40. 40.362.1 × 10 =

Answer key

  1. 0.0057
  2. 188.4
  3. 0.0977
  4. 14340
  5. 21940
  6. 0.2921
  7. 1441
  8. 49080
  9. 442.6
  10. 1343
  11. 27840
  12. 0.3931
  13. 47290
  14. 3411
  15. 2141
  16. 0.0132
  17. 1237
  18. 6030
  19. 796
  20. 1.256
  21. 2.005
  22. 3.705
  23. 4735
  24. 2.373
  25. 4591
  26. 1644
  27. 96200
  28. 1.611
  29. 35940
  30. 376400
  31. 2.004
  32. 0.127
  33. 4079
  34. 4.261
  35. 0.2494
  36. 26770
  37. 146700
  38. 139.8
  39. 0.586
  40. 3621

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