计算：567+345×566567×345+222=_．
问题描述：
计算：
=______． 567+345×566 567×345+222
答
：
，567+345×566 567×345+222
=
，567+345×566 (566+1)×345+222
=
，567+345×566 345×566+345+222
=
，567+345×566 345×566+567
=
，567+345×566 567+345×566
=1．