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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 424 · 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. 1.9.01 ÷ 10 =
  2. 2.464.5 ÷ 1000 =
  3. 3.47.49 ÷ 10 =
  4. 4.429.6 ÷ 1000 =
  5. 5.164.9 ÷ 10 =
  6. 6.31.41 × 10 =
  7. 7.104.7 ÷ 1000 =
  8. 8.24.48 × 1000 =
  9. 9.45.85 ÷ 100 =
  10. 10.12.58 × 1000 =
  11. 11.52.9 × 1000 =
  12. 12.38.05 × 100 =
  13. 13.31.23 × 100 =
  14. 14.88.7 × 1000 =
  15. 15.232.6 ÷ 100 =
  16. 16.326.9 × 1000 =
  17. 17.36.46 ÷ 10 =
  18. 18.424.2 ÷ 1000 =
  19. 19.107.3 × 100 =
  20. 20.424.1 × 10 =
  21. 21.499.5 ÷ 10 =
  22. 22.120.6 × 10 =
  23. 23.130.1 × 1000 =
  24. 24.27.01 × 10 =
  25. 25.0.51 × 1000 =
  26. 26.32.81 × 1000 =
  27. 27.33.51 × 100 =
  28. 28.3.13 × 10 =
  29. 29.19.53 × 10 =
  30. 30.37.21 ÷ 10 =
  31. 31.43.51 × 10 =
  32. 32.408.1 ÷ 1000 =
  33. 33.151.8 ÷ 1000 =
  34. 34.123.3 ÷ 1000 =
  35. 35.6.61 ÷ 100 =
  36. 36.117.4 ÷ 10 =
  37. 37.3.41 ÷ 10 =
  38. 38.365.8 ÷ 1000 =
  39. 39.27.69 ÷ 100 =
  40. 40.12.01 ÷ 10 =

Answer key

  1. 0.901
  2. 0.4645
  3. 4.749
  4. 0.4296
  5. 16.49
  6. 314.1
  7. 0.1047
  8. 24480
  9. 0.4585
  10. 12580
  11. 52900
  12. 3805
  13. 3123
  14. 88700
  15. 2.326
  16. 326900
  17. 3.646
  18. 0.4242
  19. 10730
  20. 4241
  21. 49.95
  22. 1206
  23. 130100
  24. 270.1
  25. 510
  26. 32810
  27. 3351
  28. 31.3
  29. 195.3
  30. 3.721
  31. 435.1
  32. 0.4081
  33. 0.1518
  34. 0.1233
  35. 0.0661
  36. 11.74
  37. 0.341
  38. 0.3658
  39. 0.2769
  40. 1.201

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