986×89-987×88

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 09:48:48
986×89-987×88986×89-987×88986×89-987×88986×89-987×88=986×89-986×88-88=986×(89-88)-88=986-88=986-100+

986×89-987×88
986×89-987×88

986×89-987×88
986×89-987×88
=986×89-986×88 -88
=986×(89-88)-88
=986-88
=986-100+12
=898

=986×88+986-986×88-88
=986-88
=898

原式=986*88+986-986*88+88=986+88=1174

=986*89-986*88-88
=986-88
=898

原式=986*(89-88)-88
=986-88
=898

986×89-987×88
=986×(88+1)-(986+1)×88
=986X88+986-986X88-88
=986-88
=898

=986×88+986-986×88-88
=986-88
=898 (我是3年级的尖子)

89*(986-987)+987=898

=986×88+986-987×88
=(986-987)×88+986
=-88+986
=898

986×89-987×88
=986×(88+1)-(986+1)×88
=986×88+986-986×88-88
=986-88
=986-86-2
=900-2
=898