5⼀1x8÷5⼀4 = 5⼀3+2⼀1X5⼀4 = 6⼀5÷3⼀2÷6⼀5 = (8⼀5

5/1x8÷5/4 = 5/3+2/1X5/4 = 6/5÷3/2÷6/5 = (8/5十6/5)X25/4= (6/5-3/2)×10/9= 1-9/7÷8/7=
2024-12-03 15:42:03
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