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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 851 · 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. 1.41.24 × 1000 =
  2. 2.52.3 × 1000 =
  3. 3.174.3 × 10 =
  4. 4.85.8 ÷ 1000 =
  5. 5.36.94 × 1000 =
  6. 6.31.1 × 1000 =
  7. 7.17.86 × 10 =
  8. 8.176.3 ÷ 1000 =
  9. 9.88.5 × 10 =
  10. 10.165.4 ÷ 10 =
  11. 11.4.3 × 1000 =
  12. 12.29.9 ÷ 10 =
  13. 13.75.9 × 10 =
  14. 14.13.24 ÷ 100 =
  15. 15.22.11 ÷ 10 =
  16. 16.7.14 × 1000 =
  17. 17.11.31 ÷ 10 =
  18. 18.96.3 × 10 =
  19. 19.282.7 ÷ 100 =
  20. 20.103.5 × 100 =
  21. 21.14.26 × 100 =
  22. 22.41.74 ÷ 1000 =
  23. 23.16.38 × 100 =
  24. 24.2.13 × 10 =
  25. 25.8.86 ÷ 1000 =
  26. 26.359.3 ÷ 1000 =
  27. 27.268.4 ÷ 100 =
  28. 28.48.02 ÷ 100 =
  29. 29.289.4 × 10 =
  30. 30.220.4 ÷ 100 =
  31. 31.18.39 × 1000 =
  32. 32.111.3 ÷ 10 =
  33. 33.3.54 × 10 =
  34. 34.26.59 ÷ 100 =
  35. 35.34.32 × 10 =
  36. 36.30.59 × 1000 =
  37. 37.38.58 × 1000 =
  38. 38.33.72 ÷ 10 =
  39. 39.31.84 ÷ 10 =
  40. 40.33.62 ÷ 1000 =

Answer key

  1. 41240
  2. 52300
  3. 1743
  4. 0.0858
  5. 36940
  6. 31100
  7. 178.6
  8. 0.1763
  9. 885
  10. 16.54
  11. 4300
  12. 2.99
  13. 759
  14. 0.1324
  15. 2.211
  16. 7140
  17. 1.131
  18. 963
  19. 2.827
  20. 10350
  21. 1426
  22. 0.04174
  23. 1638
  24. 21.3
  25. 0.00886
  26. 0.3593
  27. 2.684
  28. 0.4802
  29. 2894
  30. 2.204
  31. 18390
  32. 11.13
  33. 35.4
  34. 0.2659
  35. 343.2
  36. 30590
  37. 38580
  38. 3.372
  39. 3.184
  40. 0.03362

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