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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 46 · 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. 1.7.61 ÷ 10 =
  2. 2.374.9 ÷ 1000 =
  3. 3.8.49 × 1000 =
  4. 4.236.2 × 10 =
  5. 5.35.95 ÷ 100 =
  6. 6.250.6 ÷ 100 =
  7. 7.281.6 ÷ 10 =
  8. 8.179.1 ÷ 10 =
  9. 9.89.5 × 10 =
  10. 10.200.1 ÷ 10 =
  11. 11.424.6 × 10 =
  12. 12.25.56 × 10 =
  13. 13.39.45 ÷ 10 =
  14. 14.14.07 × 1000 =
  15. 15.24.12 × 10 =
  16. 16.134.2 ÷ 10 =
  17. 17.409.9 × 10 =
  18. 18.37.11 × 100 =
  19. 19.37.08 × 1000 =
  20. 20.145.3 ÷ 10 =
  21. 21.7.54 × 10 =
  22. 22.3.9 × 100 =
  23. 23.214.7 × 1000 =
  24. 24.37.16 × 1000 =
  25. 25.36.93 ÷ 100 =
  26. 26.36.74 × 1000 =
  27. 27.54.2 × 1000 =
  28. 28.5.22 × 10 =
  29. 29.247.1 ÷ 10 =
  30. 30.40.68 ÷ 10 =
  31. 31.407.3 ÷ 1000 =
  32. 32.31.58 ÷ 100 =
  33. 33.117.2 × 100 =
  34. 34.6.61 ÷ 1000 =
  35. 35.275.2 ÷ 10 =
  36. 36.32.41 × 1000 =
  37. 37.19.04 × 10 =
  38. 38.208.7 ÷ 10 =
  39. 39.164.1 × 10 =
  40. 40.201.1 ÷ 100 =

Answer key

  1. 0.761
  2. 0.3749
  3. 8490
  4. 2362
  5. 0.3595
  6. 2.506
  7. 28.16
  8. 17.91
  9. 895
  10. 20.01
  11. 4246
  12. 255.6
  13. 3.945
  14. 14070
  15. 241.2
  16. 13.42
  17. 4099
  18. 3711
  19. 37080
  20. 14.53
  21. 75.4
  22. 390
  23. 214700
  24. 37160
  25. 0.3693
  26. 36740
  27. 54200
  28. 52.2
  29. 24.71
  30. 4.068
  31. 0.4073
  32. 0.3158
  33. 11720
  34. 0.00661
  35. 27.52
  36. 32410
  37. 190.4
  38. 20.87
  39. 1641
  40. 2.011

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