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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 339 · 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. 1.259.9 × 1000 =
  2. 2.490.8 ÷ 10 =
  3. 3.32.91 × 10 =
  4. 4.0.44 ÷ 100 =
  5. 5.32.51 × 100 =
  6. 6.9.51 × 100 =
  7. 7.311.7 ÷ 10 =
  8. 8.221.3 × 100 =
  9. 9.17.66 × 1000 =
  10. 10.43.68 ÷ 10 =
  11. 11.8.86 × 1000 =
  12. 12.294.5 × 1000 =
  13. 13.28.94 × 100 =
  14. 14.244.8 × 1000 =
  15. 15.34.65 × 100 =
  16. 16.2.96 × 100 =
  17. 17.29.24 ÷ 100 =
  18. 18.427.4 × 10 =
  19. 19.44.95 ÷ 100 =
  20. 20.28.48 × 1000 =
  21. 21.330.1 × 10 =
  22. 22.136.9 ÷ 1000 =
  23. 23.12.46 × 10 =
  24. 24.35.14 × 100 =
  25. 25.34.29 × 100 =
  26. 26.113.4 × 1000 =
  27. 27.2.36 × 100 =
  28. 28.12.91 ÷ 1000 =
  29. 29.118.3 ÷ 100 =
  30. 30.23.7 × 10 =
  31. 31.26.24 × 10 =
  32. 32.69.4 × 1000 =
  33. 33.431.5 × 100 =
  34. 34.24.02 ÷ 1000 =
  35. 35.268.3 × 10 =
  36. 36.3.07 ÷ 10 =
  37. 37.468.9 ÷ 1000 =
  38. 38.42.98 ÷ 100 =
  39. 39.31.52 ÷ 1000 =
  40. 40.13.66 × 10 =

Answer key

  1. 259900
  2. 49.08
  3. 329.1
  4. 0.0044
  5. 3251
  6. 951
  7. 31.17
  8. 22130
  9. 17660
  10. 4.368
  11. 8860
  12. 294500
  13. 2894
  14. 244800
  15. 3465
  16. 296
  17. 0.2924
  18. 4274
  19. 0.4495
  20. 28480
  21. 3301
  22. 0.1369
  23. 124.6
  24. 3514
  25. 3429
  26. 113400
  27. 236
  28. 0.01291
  29. 1.183
  30. 237
  31. 262.4
  32. 69400
  33. 43150
  34. 0.02402
  35. 2683
  36. 0.307
  37. 0.4689
  38. 0.4298
  39. 0.03152
  40. 136.6

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