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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 219 · 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. 1.70.1 × 100 =
  2. 2.332.1 × 1000 =
  3. 3.383.7 ÷ 1000 =
  4. 4.20.9 ÷ 100 =
  5. 5.288.7 ÷ 100 =
  6. 6.10.58 × 1000 =
  7. 7.403.8 × 10 =
  8. 8.356.7 ÷ 100 =
  9. 9.203.9 ÷ 100 =
  10. 10.59.8 × 10 =
  11. 11.33.58 × 1000 =
  12. 12.268.8 × 10 =
  13. 13.40.29 × 10 =
  14. 14.0.32 ÷ 1000 =
  15. 15.284.6 × 10 =
  16. 16.85.4 ÷ 10 =
  17. 17.5.35 × 10 =
  18. 18.10.99 ÷ 10 =
  19. 19.9.89 × 1000 =
  20. 20.200.7 ÷ 10 =
  21. 21.12.65 × 100 =
  22. 22.24.08 ÷ 10 =
  23. 23.36.9 × 1000 =
  24. 24.2.93 ÷ 100 =
  25. 25.31.11 ÷ 10 =
  26. 26.99.8 × 100 =
  27. 27.41.15 ÷ 10 =
  28. 28.133.7 ÷ 100 =
  29. 29.291.9 × 10 =
  30. 30.24.63 ÷ 1000 =
  31. 31.46.23 ÷ 1000 =
  32. 32.320.4 × 10 =
  33. 33.22.17 × 1000 =
  34. 34.5.9 ÷ 100 =
  35. 35.432.2 ÷ 1000 =
  36. 36.10.09 × 10 =
  37. 37.34.17 × 10 =
  38. 38.28.65 × 10 =
  39. 39.418.8 × 10 =
  40. 40.337.6 × 10 =

Answer key

  1. 7010
  2. 332100
  3. 0.3837
  4. 0.209
  5. 2.887
  6. 10580
  7. 4038
  8. 3.567
  9. 2.039
  10. 598
  11. 33580
  12. 2688
  13. 402.9
  14. 0.00032
  15. 2846
  16. 8.54
  17. 53.5
  18. 1.099
  19. 9890
  20. 20.07
  21. 1265
  22. 2.408
  23. 36900
  24. 0.0293
  25. 3.111
  26. 9980
  27. 4.115
  28. 1.337
  29. 2919
  30. 0.02463
  31. 0.04623
  32. 3204
  33. 22170
  34. 0.059
  35. 0.4322
  36. 100.9
  37. 341.7
  38. 286.5
  39. 4188
  40. 3376

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