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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 834 · 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. 1.425.7 × 10 =
  2. 2.75.3 × 10 =
  3. 3.39.48 ÷ 10 =
  4. 4.40.21 ÷ 1000 =
  5. 5.395.6 × 10 =
  6. 6.175.8 × 10 =
  7. 7.434.3 ÷ 10 =
  8. 8.154.6 × 10 =
  9. 9.34.9 ÷ 100 =
  10. 10.276.1 × 10 =
  11. 11.313.6 ÷ 10 =
  12. 12.34.1 ÷ 10 =
  13. 13.31.01 ÷ 1000 =
  14. 14.6.6 ÷ 1000 =
  15. 15.250.7 × 10 =
  16. 16.6.17 × 10 =
  17. 17.35.11 ÷ 1000 =
  18. 18.24.1 ÷ 1000 =
  19. 19.345.2 ÷ 10 =
  20. 20.480.3 ÷ 10 =
  21. 21.7.01 ÷ 1000 =
  22. 22.440.1 ÷ 10 =
  23. 23.14.59 ÷ 10 =
  24. 24.84.3 ÷ 10 =
  25. 25.351.8 × 1000 =
  26. 26.347.3 × 1000 =
  27. 27.231.6 × 10 =
  28. 28.231.7 ÷ 100 =
  29. 29.31.98 ÷ 100 =
  30. 30.117.7 × 100 =
  31. 31.174.1 × 100 =
  32. 32.5.66 × 100 =
  33. 33.28.79 ÷ 1000 =
  34. 34.38.8 × 100 =
  35. 35.32.81 × 100 =
  36. 36.186.2 ÷ 1000 =
  37. 37.98.4 × 1000 =
  38. 38.377.4 ÷ 100 =
  39. 39.1.69 ÷ 100 =
  40. 40.26.42 ÷ 1000 =

Answer key

  1. 4257
  2. 753
  3. 3.948
  4. 0.04021
  5. 3956
  6. 1758
  7. 43.43
  8. 1546
  9. 0.349
  10. 2761
  11. 31.36
  12. 3.41
  13. 0.03101
  14. 0.0066
  15. 2507
  16. 61.7
  17. 0.03511
  18. 0.0241
  19. 34.52
  20. 48.03
  21. 0.00701
  22. 44.01
  23. 1.459
  24. 8.43
  25. 351800
  26. 347300
  27. 2316
  28. 2.317
  29. 0.3198
  30. 11770
  31. 17410
  32. 566
  33. 0.02879
  34. 3880
  35. 3281
  36. 0.1862
  37. 98400
  38. 3.774
  39. 0.0169
  40. 0.02642

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