AMC 8 1992 Problem 6

AMC8 1992 年第 6

表达式与运算★★☆☆☆
Problem Suppose that means a+b-c. For example, is 5+4-6 = 3. Then the sum is
abca\triangle b\triangle c 表示 a+b-c。例如 5465\triangle 4\triangle 65+4-6 = 3。则 8568\triangle 5\triangle 62732\triangle 7\triangle 3 的和是
AMC 8 1992 Problem 6 figure
  1. A.-2
  2. B.-1
  3. C.0
  4. D.1
  5. E.2

正确答案 · Correct Answer

D

解析 · Solution

解析整理中

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