362+548×361362×548−186.
问题描述:
. 362+548×361 362×548−186
答
,362+548×361 362×548−186
=
,362+548×361 (361+1)×548−186
=
,362+548×361 361×548+548−186
=
,362+548×361 361×548+362
=1.