已知a=-10.5,b=-3.7,c=5.8,d=-3.5,求a-b+(-c)-(-d)的值
问题描述:
已知a=-10.5,b=-3.7,c=5.8,d=-3.5,求a-b+(-c)-(-d)的值
具体
答
a-b+(-c)-(-d)
=(-10)-(-3.7)+(-5.8)-[-(-3.5)]
=(-10)+3.7-5.8-3.5
=-6.3-5.8-3.5
=-12.1-3.5
=-15.6