计算:-4.23+3.8-(-1.2)+(-0.5)-(+0.73) 原式=
问题描述：
计算:-4.23+3.8-(-1.2)+(-0.5)-(+0.73) 原式=
答
-4.28+3.8+1.2-0.5-0.37=（3.8+1.2)-(4.28+0.5+0.37)=5-6.7=-1.7
答
=-4.23+3.8+1.2-0.5-0.73
=-4.73+5-0.73
=-0.46
答
原式=-4.23+3.8+1.2+(-0.5)-(+0.73)
=-(4.23+0.5+0.73)+3.8+1.2
=-0.46
答
-0.46