[MATH] Reversing Digits
2007-04-25 5:20 pm
Suppose the hundreds digit of three-digit number is greater than the tens digit and the ones digit. When the digits in the numbers are reversed and the resulting number is subtracted from the original number, the units digit in the different is 4. What is the difference between the three-digit umber and its reverse? How many different three-digit numbers meet the given conditions?
回答 (1)
2007-04-25 5:38 pm
✔ 最佳答案
1. What is the difference between the three-digit umber and its reverse? 2. How many different three-digit numbers meet the given conditions?
1. The difference is 594.
2. There are a total of 15 three-digit numbers meeting the given conditions. They are
983, 973, 963, 953, 943;
872, 862, 852, 842, 832;
761, 751, 741, 731, 721
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