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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 179 · 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. 1.19.86 × 10 =
  2. 2.45.79 ÷ 1000 =
  3. 3.31.95 × 100 =
  4. 4.415.1 ÷ 10 =
  5. 5.46.03 ÷ 10 =
  6. 6.470.6 × 10 =
  7. 7.36.29 × 1000 =
  8. 8.9.33 × 1000 =
  9. 9.62.3 ÷ 10 =
  10. 10.347.4 × 100 =
  11. 11.1.73 ÷ 1000 =
  12. 12.18.68 × 100 =
  13. 13.54.9 ÷ 10 =
  14. 14.12.11 × 1000 =
  15. 15.496.3 × 100 =
  16. 16.101.8 × 1000 =
  17. 17.46.94 ÷ 100 =
  18. 18.11.37 × 10 =
  19. 19.164.9 × 1000 =
  20. 20.336.7 × 1000 =
  21. 21.7.75 × 1000 =
  22. 22.347.9 × 100 =
  23. 23.45.96 ÷ 10 =
  24. 24.366.3 × 10 =
  25. 25.358.4 × 100 =
  26. 26.11.24 × 10 =
  27. 27.409.2 × 100 =
  28. 28.153.5 × 1000 =
  29. 29.31.01 ÷ 1000 =
  30. 30.183.3 × 1000 =
  31. 31.38.24 ÷ 1000 =
  32. 32.38.73 ÷ 10 =
  33. 33.34.3 × 100 =
  34. 34.6.06 ÷ 10 =
  35. 35.0.56 ÷ 1000 =
  36. 36.149.4 × 100 =
  37. 37.47.92 ÷ 10 =
  38. 38.201.3 × 100 =
  39. 39.454.4 ÷ 10 =
  40. 40.201.6 × 1000 =

Answer key

  1. 198.6
  2. 0.04579
  3. 3195
  4. 41.51
  5. 4.603
  6. 4706
  7. 36290
  8. 9330
  9. 6.23
  10. 34740
  11. 0.00173
  12. 1868
  13. 5.49
  14. 12110
  15. 49630
  16. 101800
  17. 0.4694
  18. 113.7
  19. 164900
  20. 336700
  21. 7750
  22. 34790
  23. 4.596
  24. 3663
  25. 35840
  26. 112.4
  27. 40920
  28. 153500
  29. 0.03101
  30. 183300
  31. 0.03824
  32. 3.873
  33. 3430
  34. 0.606
  35. 0.00056
  36. 14940
  37. 4.792
  38. 20130
  39. 45.44
  40. 201600

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