3-(+63)-(-259)-(-41)等于多少,请写出过程

问题描述:

3-(+63)-(-259)-(-41)等于多少,请写出过程

原式=3-63+259+41
=240

3-(+63)-(-259)-(-41)
=3-63+259+41
=240

3-(+63)-(-259)-(-41)
=-60+259+41
=-60+(259+41)
=-60+300
=240

=3-63+259+41
=(3+259+41)-63
=240