7.42×125%-9.24÷(-5分之4)+16.66×(-1又4分之1)

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/01 04:56:51

7.42×125%-9.24÷(-5分之4)+16.66×(-1又4分之1)

7.42×125%-9.24÷(-5分之4)+16.66×(-1又4分之1)
=7.42×5/4+9.24×5/4-16.66×5/4
=5/4×(7.42+9.24-16.66)
=5/4×0
=0

-0.225