把得数相同的数用线连起来。7?*A3j6c/d,t.l
①27+35 A.81-457?*A3j6c/d,t.l
②48+10 B.89-277?*A3j6c/d,t.l
③73-37 C.97-277?*A3j6c/d,t.l
④16+54 D.41+177?*A3j6c/d,t.l
①——5Y:H/Y5G9J-z:s7v1@1Z/a6]'t;②——:W.@8c9A0P2q/E3]/`;③——+R0q-S5O(};K)y)z;N2Z6R;④——,g3a)x4`5O:`(n7?*A3j6c/d,t.l