计算:(1)(-7)-9-(-3)+(-5) (2)-4.2+5.7-8.4+1
问题描述:
计算:(1)(-7)-9-(-3)+(-5) (2)-4.2+5.7-8.4+1
计算:(1)(-7)-9-(-3)+(-5)
(2)-4.2+5.7-8.4+10
答
-7-9+3-5=-18
计算:(1)(-7)-9-(-3)+(-5) (2)-4.2+5.7-8.4+1
计算:(1)(-7)-9-(-3)+(-5)
(2)-4.2+5.7-8.4+10
-7-9+3-5=-18