计算:-6-8-2+3.54-4.72+16.46-5.28
问题描述:
计算:-6-8-2+3.54-4.72+16.46-5.28
还有一道题:a=3,b=-4,c=-5;根据条件,求a+(-b)-(-c)的值.
二选一,你会做哪道,就做那一道,管你做拿到,只要做的好就给财富.
答
-6-8-2+3.54-4.72+16.46-5.28
=(-6-8-2)+(3.54+16.46)-(4.72+5.28)
=-16+20-10
=-6
a=3,b=-4,c=-5;
a+(-b)-(-c)
=a-b+c
=3+4-5
=2