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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 543 · 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. 1.443.6 × 100 =
  2. 2.46.34 ÷ 100 =
  3. 3.435.1 ÷ 1000 =
  4. 4.23.76 ÷ 10 =
  5. 5.13.95 ÷ 10 =
  6. 6.130.5 ÷ 1000 =
  7. 7.45.91 ÷ 1000 =
  8. 8.9.76 × 100 =
  9. 9.1.86 × 100 =
  10. 10.269.4 ÷ 1000 =
  11. 11.145.9 × 1000 =
  12. 12.34.61 × 10 =
  13. 13.202.8 ÷ 1000 =
  14. 14.0.66 × 100 =
  15. 15.452.7 × 1000 =
  16. 16.84.4 ÷ 1000 =
  17. 17.422.2 ÷ 1000 =
  18. 18.498.7 ÷ 100 =
  19. 19.61.7 × 100 =
  20. 20.17.18 × 10 =
  21. 21.2.46 × 1000 =
  22. 22.4.49 ÷ 1000 =
  23. 23.324.6 × 1000 =
  24. 24.18.3 × 100 =
  25. 25.20.3 × 1000 =
  26. 26.31.58 ÷ 100 =
  27. 27.29.76 × 100 =
  28. 28.8.75 × 100 =
  29. 29.7.31 × 10 =
  30. 30.241.3 × 100 =
  31. 31.41.63 ÷ 100 =
  32. 32.222.2 × 100 =
  33. 33.10.63 ÷ 1000 =
  34. 34.476.3 × 10 =
  35. 35.280.6 × 1000 =
  36. 36.257.3 ÷ 10 =
  37. 37.24.34 ÷ 100 =
  38. 38.365.9 × 1000 =
  39. 39.381.9 × 10 =
  40. 40.20.84 × 100 =

Answer key

  1. 44360
  2. 0.4634
  3. 0.4351
  4. 2.376
  5. 1.395
  6. 0.1305
  7. 0.04591
  8. 976
  9. 186
  10. 0.2694
  11. 145900
  12. 346.1
  13. 0.2028
  14. 66
  15. 452700
  16. 0.0844
  17. 0.4222
  18. 4.987
  19. 6170
  20. 171.8
  21. 2460
  22. 0.00449
  23. 324600
  24. 1830
  25. 20300
  26. 0.3158
  27. 2976
  28. 875
  29. 73.1
  30. 24130
  31. 0.4163
  32. 22220
  33. 0.01063
  34. 4763
  35. 280600
  36. 25.73
  37. 0.2434
  38. 365900
  39. 3819
  40. 2084

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