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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 706 · 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. 1.13.96 ÷ 100 =
  2. 2.453.2 ÷ 1000 =
  3. 3.14.66 × 100 =
  4. 4.270.3 ÷ 100 =
  5. 5.432.4 ÷ 10 =
  6. 6.47.01 × 100 =
  7. 7.139.9 ÷ 10 =
  8. 8.5.76 ÷ 10 =
  9. 9.407.4 × 10 =
  10. 10.203.7 × 1000 =
  11. 11.282.6 × 100 =
  12. 12.39.42 ÷ 10 =
  13. 13.22.94 × 1000 =
  14. 14.12.78 × 1000 =
  15. 15.39.3 ÷ 1000 =
  16. 16.3.72 ÷ 100 =
  17. 17.375.1 × 100 =
  18. 18.12.68 × 10 =
  19. 19.49.18 ÷ 1000 =
  20. 20.183.1 × 10 =
  21. 21.111.2 ÷ 100 =
  22. 22.479.4 × 10 =
  23. 23.10.14 × 1000 =
  24. 24.12.24 × 10 =
  25. 25.50.2 ÷ 1000 =
  26. 26.466.9 × 1000 =
  27. 27.436.6 ÷ 1000 =
  28. 28.385.7 × 1000 =
  29. 29.1.52 × 1000 =
  30. 30.15.43 × 10 =
  31. 31.395.7 ÷ 10 =
  32. 32.215.7 ÷ 10 =
  33. 33.444.3 × 1000 =
  34. 34.9.03 × 100 =
  35. 35.0.45 ÷ 100 =
  36. 36.402.3 × 1000 =
  37. 37.6.78 ÷ 10 =
  38. 38.46.72 × 1000 =
  39. 39.97.5 × 10 =
  40. 40.37.88 ÷ 1000 =

Answer key

  1. 0.1396
  2. 0.4532
  3. 1466
  4. 2.703
  5. 43.24
  6. 4701
  7. 13.99
  8. 0.576
  9. 4074
  10. 203700
  11. 28260
  12. 3.942
  13. 22940
  14. 12780
  15. 0.0393
  16. 0.0372
  17. 37510
  18. 126.8
  19. 0.04918
  20. 1831
  21. 1.112
  22. 4794
  23. 10140
  24. 122.4
  25. 0.0502
  26. 466900
  27. 0.4366
  28. 385700
  29. 1520
  30. 154.3
  31. 39.57
  32. 21.57
  33. 444300
  34. 903
  35. 0.0045
  36. 402300
  37. 0.678
  38. 46720
  39. 975
  40. 0.03788

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