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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 213 · 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. 1.104.6 × 10 =
  2. 2.288.9 ÷ 1000 =
  3. 3.31.74 × 1000 =
  4. 4.387.3 × 10 =
  5. 5.467.5 ÷ 1000 =
  6. 6.121.8 × 1000 =
  7. 7.341.9 × 100 =
  8. 8.332.7 × 1000 =
  9. 9.346.1 × 100 =
  10. 10.47.35 × 10 =
  11. 11.9.13 × 1000 =
  12. 12.173.9 ÷ 100 =
  13. 13.45.22 ÷ 10 =
  14. 14.236.5 × 10 =
  15. 15.137.1 × 100 =
  16. 16.51.2 ÷ 100 =
  17. 17.48.42 × 100 =
  18. 18.23.51 × 1000 =
  19. 19.38.76 × 10 =
  20. 20.260.1 × 1000 =
  21. 21.355.4 ÷ 10 =
  22. 22.10.52 × 1000 =
  23. 23.2.11 × 10 =
  24. 24.35.09 ÷ 10 =
  25. 25.47.64 ÷ 100 =
  26. 26.29.29 ÷ 100 =
  27. 27.36.97 ÷ 100 =
  28. 28.272.6 ÷ 10 =
  29. 29.46.69 × 100 =
  30. 30.45.6 × 10 =
  31. 31.3.79 ÷ 1000 =
  32. 32.23.01 ÷ 100 =
  33. 33.8.99 × 100 =
  34. 34.49.2 × 1000 =
  35. 35.131.1 ÷ 10 =
  36. 36.239.3 × 10 =
  37. 37.183.1 ÷ 1000 =
  38. 38.2.79 × 100 =
  39. 39.333.1 × 10 =
  40. 40.218.6 ÷ 1000 =

Answer key

  1. 1046
  2. 0.2889
  3. 31740
  4. 3873
  5. 0.4675
  6. 121800
  7. 34190
  8. 332700
  9. 34610
  10. 473.5
  11. 9130
  12. 1.739
  13. 4.522
  14. 2365
  15. 13710
  16. 0.512
  17. 4842
  18. 23510
  19. 387.6
  20. 260100
  21. 35.54
  22. 10520
  23. 21.1
  24. 3.509
  25. 0.4764
  26. 0.2929
  27. 0.3697
  28. 27.26
  29. 4669
  30. 456
  31. 0.00379
  32. 0.2301
  33. 899
  34. 49200
  35. 13.11
  36. 2393
  37. 0.1831
  38. 279
  39. 3331
  40. 0.2186

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