用简便方法计算:455×7.6+111×19.2+43.3×76

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/29 07:14:32

用简便方法计算:455×7.6+111×19.2+43.3×76

455×7.6+111×19.2+43.3×76
=455×7.6+111×19.2+433×7.6
=(455+433)×7.6+111×19.2
=888*7.6+111*18.2
=8*111*7.6+111*(8*2.4)
= 111*(8*7.6+8*2.4)
=111*8*10
=8880