(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?最好从头写到尾.

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/10 10:26:28
(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?最好从头写到尾.(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?

(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?最好从头写到尾.
(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?最好从头写到尾.

(-40)-(+27)+19-24-(-32)变成-40-27+19-24+32之后怎么做?最好从头写到尾.
-40-27+19-24+32 =-(40+27+24)+32+19 =51-91 =-40