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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 246 · 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. 1.386.3 × 10 =
  2. 2.368.2 ÷ 1000 =
  3. 3.36.33 × 10 =
  4. 4.40.41 × 1000 =
  5. 5.13.03 ÷ 10 =
  6. 6.254.5 ÷ 10 =
  7. 7.38.1 × 1000 =
  8. 8.144.3 × 10 =
  9. 9.303.7 ÷ 10 =
  10. 10.276.2 × 10 =
  11. 11.4.58 × 10 =
  12. 12.6.36 ÷ 100 =
  13. 13.245.5 ÷ 10 =
  14. 14.12.1 × 10 =
  15. 15.242.8 × 10 =
  16. 16.30.72 ÷ 1000 =
  17. 17.339.6 ÷ 1000 =
  18. 18.41.37 ÷ 1000 =
  19. 19.46.6 ÷ 10 =
  20. 20.248.7 × 10 =
  21. 21.456.4 × 10 =
  22. 22.44.88 ÷ 10 =
  23. 23.6.1 ÷ 10 =
  24. 24.37.84 × 100 =
  25. 25.76.5 ÷ 100 =
  26. 26.56.1 ÷ 1000 =
  27. 27.433.5 ÷ 10 =
  28. 28.268.4 ÷ 1000 =
  29. 29.34.97 ÷ 10 =
  30. 30.14.42 × 10 =
  31. 31.260.2 × 100 =
  32. 32.25.37 × 1000 =
  33. 33.412.7 × 100 =
  34. 34.37.91 × 100 =
  35. 35.32.57 × 10 =
  36. 36.164.6 × 100 =
  37. 37.37.45 ÷ 1000 =
  38. 38.18.99 ÷ 10 =
  39. 39.39.06 × 1000 =
  40. 40.213.8 ÷ 1000 =

Answer key

  1. 3863
  2. 0.3682
  3. 363.3
  4. 40410
  5. 1.303
  6. 25.45
  7. 38100
  8. 1443
  9. 30.37
  10. 2762
  11. 45.8
  12. 0.0636
  13. 24.55
  14. 121
  15. 2428
  16. 0.03072
  17. 0.3396
  18. 0.04137
  19. 4.66
  20. 2487
  21. 4564
  22. 4.488
  23. 0.61
  24. 3784
  25. 0.765
  26. 0.0561
  27. 43.35
  28. 0.2684
  29. 3.497
  30. 144.2
  31. 26020
  32. 25370
  33. 41270
  34. 3791
  35. 325.7
  36. 16460
  37. 0.03745
  38. 1.899
  39. 39060
  40. 0.2138

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