有理数的加法计算(+14)+(-4)+(-2)+(+26)+(-3)(-83)+(+26)+(-41)+(+15)(-1.8)+(+0.7)+(-0.9)+1.3+(-0.2)1/4+(-3又1/3)+(+4又3/4)+(-6又2/3)
问题描述：
有理数的加法计算
(+14)+(-4)+(-2)+(+26)+(-3)
(-83)+(+26)+(-41)+(+15)
(-1.8)+(+0.7)+(-0.9)+1.3+(-0.2)
1/4+(-3又1/3)+(+4又3/4)+(-6又2/3)
答
31
83
-0.9
-6
答
(+14)+(-4)+(-2)+(+26)+(-3)=14-4-2+26-3=31(-83)+(+26)+(-41)+(+15)=83+26-41+15=83(-1.8)+(+0.7)+(-0.9)+1.3+(-0.2) =1.8+0.7-0.9+1.3-0.2=2.71/4+(-3又1/3)+(+4又3/4)+(-6又2/3)=1/4-3又1/3+4又3/4-6又2/3=（1/4+...