个
= = =
0.2= 0.09= 0.404=
①410-80=
②270+600=
③420÷70=
④25x40=
⑤108-8x7=
⑥136÷4x4=
⑦24+26x5=
⑧35X4÷35x4=
我想到的数量关系是: