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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 359 · 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. 1.25.91 × 100 =
  2. 2.150.7 ÷ 1000 =
  3. 3.61.3 ÷ 1000 =
  4. 4.48.77 ÷ 10 =
  5. 5.324.1 ÷ 10 =
  6. 6.5.23 × 10 =
  7. 7.177.4 ÷ 1000 =
  8. 8.168.2 ÷ 1000 =
  9. 9.341.6 × 1000 =
  10. 10.218.1 ÷ 1000 =
  11. 11.2.51 × 1000 =
  12. 12.358.5 × 100 =
  13. 13.401.1 ÷ 10 =
  14. 14.61.9 ÷ 100 =
  15. 15.28.12 × 1000 =
  16. 16.423.4 × 10 =
  17. 17.146.1 ÷ 10 =
  18. 18.358.4 ÷ 1000 =
  19. 19.249.1 × 10 =
  20. 20.79.5 × 1000 =
  21. 21.14.04 ÷ 10 =
  22. 22.231.9 × 1000 =
  23. 23.42.55 × 100 =
  24. 24.228.5 × 1000 =
  25. 25.118.1 × 1000 =
  26. 26.17.89 × 100 =
  27. 27.366.6 ÷ 10 =
  28. 28.67.1 × 10 =
  29. 29.49.75 ÷ 10 =
  30. 30.38.58 × 10 =
  31. 31.2.77 ÷ 10 =
  32. 32.32.48 × 1000 =
  33. 33.222.9 × 1000 =
  34. 34.32.68 ÷ 1000 =
  35. 35.191.4 ÷ 100 =
  36. 36.419.5 × 10 =
  37. 37.32.11 × 100 =
  38. 38.141.2 ÷ 10 =
  39. 39.16.29 × 100 =
  40. 40.49.01 ÷ 100 =

Answer key

  1. 2591
  2. 0.1507
  3. 0.0613
  4. 4.877
  5. 32.41
  6. 52.3
  7. 0.1774
  8. 0.1682
  9. 341600
  10. 0.2181
  11. 2510
  12. 35850
  13. 40.11
  14. 0.619
  15. 28120
  16. 4234
  17. 14.61
  18. 0.3584
  19. 2491
  20. 79500
  21. 1.404
  22. 231900
  23. 4255
  24. 228500
  25. 118100
  26. 1789
  27. 36.66
  28. 671
  29. 4.975
  30. 385.8
  31. 0.277
  32. 32480
  33. 222900
  34. 0.03268
  35. 1.914
  36. 4195
  37. 3211
  38. 14.12
  39. 1629
  40. 0.4901

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