0.84×1.2+8.4×0.88 = = = = = =

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/25 18:29:44

0.84×1.2+8.4×0.88 = = = = = =

=0.84×1.2+0.84×8.8
=0.84×(1.2+8.8)
=0.84×10
=8.4