8﹡16=(8+16)÷4=6。那么7﹡(5﹡15)是多少?-O9y1g)U9z5T+r)A9U-y9z0l6A
算式:提示*r1P4s:A4s4A/H;|-O9y1g)U9z5T+r)A9U-y9z0l6A
答 :7﹡(5﹡15)是-c'O-n/V+I;N(k)w。-O9y1g)U9z5T+r)A9U-y9z0l6A