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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 18 · 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. 1.13.7 ÷ 1000 =
  2. 2.162.1 × 10 =
  3. 3.3.27 × 100 =
  4. 4.40.32 ÷ 10 =
  5. 5.3.59 × 10 =
  6. 6.42.9 ÷ 1000 =
  7. 7.152.5 × 10 =
  8. 8.38.68 × 1000 =
  9. 9.253.5 × 1000 =
  10. 10.112.8 × 1000 =
  11. 11.42.47 × 10 =
  12. 12.18.59 × 1000 =
  13. 13.18.46 × 10 =
  14. 14.370.8 × 100 =
  15. 15.458.5 × 10 =
  16. 16.374.1 × 10 =
  17. 17.78.3 × 10 =
  18. 18.25.13 ÷ 1000 =
  19. 19.12.3 × 10 =
  20. 20.21.09 ÷ 10 =
  21. 21.211.1 ÷ 1000 =
  22. 22.6.57 × 10 =
  23. 23.10.91 ÷ 1000 =
  24. 24.237.8 × 10 =
  25. 25.413.2 ÷ 1000 =
  26. 26.270.3 ÷ 10 =
  27. 27.24.5 × 1000 =
  28. 28.14.1 × 10 =
  29. 29.26.46 × 100 =
  30. 30.27.9 × 1000 =
  31. 31.42.38 × 100 =
  32. 32.193.5 ÷ 10 =
  33. 33.123.1 ÷ 1000 =
  34. 34.29.05 × 1000 =
  35. 35.3.1 × 100 =
  36. 36.46.43 ÷ 10 =
  37. 37.21.82 × 10 =
  38. 38.27.29 ÷ 100 =
  39. 39.62.3 × 10 =
  40. 40.184.9 × 100 =

Answer key

  1. 0.0137
  2. 1621
  3. 327
  4. 4.032
  5. 35.9
  6. 0.0429
  7. 1525
  8. 38680
  9. 253500
  10. 112800
  11. 424.7
  12. 18590
  13. 184.6
  14. 37080
  15. 4585
  16. 3741
  17. 783
  18. 0.02513
  19. 123
  20. 2.109
  21. 0.2111
  22. 65.7
  23. 0.01091
  24. 2378
  25. 0.4132
  26. 27.03
  27. 24500
  28. 141
  29. 2646
  30. 27900
  31. 4238
  32. 19.35
  33. 0.1231
  34. 29050
  35. 310
  36. 4.643
  37. 218.2
  38. 0.2729
  39. 623
  40. 18490

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