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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 389 · 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. 1.251.9 ÷ 10 =
  2. 2.47.51 ÷ 100 =
  3. 3.163.1 ÷ 10 =
  4. 4.410.1 ÷ 100 =
  5. 5.49.17 × 10 =
  6. 6.104.6 ÷ 10 =
  7. 7.387.6 × 100 =
  8. 8.3.01 ÷ 1000 =
  9. 9.35.59 ÷ 100 =
  10. 10.32.18 ÷ 10 =
  11. 11.12.77 ÷ 10 =
  12. 12.31.24 × 100 =
  13. 13.37.02 × 100 =
  14. 14.190.6 × 1000 =
  15. 15.224.8 × 10 =
  16. 16.41.25 × 1000 =
  17. 17.494.1 ÷ 10 =
  18. 18.27.67 ÷ 100 =
  19. 19.451.4 × 10 =
  20. 20.21.18 × 1000 =
  21. 21.488.6 ÷ 10 =
  22. 22.3.32 × 100 =
  23. 23.3.52 ÷ 100 =
  24. 24.24.26 × 1000 =
  25. 25.25.04 ÷ 1000 =
  26. 26.7.75 ÷ 10 =
  27. 27.7.24 × 100 =
  28. 28.20.8 × 100 =
  29. 29.284.8 × 10 =
  30. 30.198.7 ÷ 10 =
  31. 31.33.58 × 100 =
  32. 32.47.77 ÷ 1000 =
  33. 33.143.4 × 100 =
  34. 34.193.4 × 10 =
  35. 35.21.19 ÷ 1000 =
  36. 36.426.6 × 10 =
  37. 37.11.9 ÷ 10 =
  38. 38.233.1 ÷ 100 =
  39. 39.4.43 ÷ 10 =
  40. 40.212.9 ÷ 100 =

Answer key

  1. 25.19
  2. 0.4751
  3. 16.31
  4. 4.101
  5. 491.7
  6. 10.46
  7. 38760
  8. 0.00301
  9. 0.3559
  10. 3.218
  11. 1.277
  12. 3124
  13. 3702
  14. 190600
  15. 2248
  16. 41250
  17. 49.41
  18. 0.2767
  19. 4514
  20. 21180
  21. 48.86
  22. 332
  23. 0.0352
  24. 24260
  25. 0.02504
  26. 0.775
  27. 724
  28. 2080
  29. 2848
  30. 19.87
  31. 3358
  32. 0.04777
  33. 14340
  34. 1934
  35. 0.02119
  36. 4266
  37. 1.19
  38. 2.331
  39. 0.443
  40. 2.129

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