-8.4+10-4.2+5.7=
-4.2+5.7-8.4+10
-4.2+5.7-8.4+10;计算
(1)-4.2+5.7-8.4+10
-4.2+5.7-8.4+10简便计算
-4.2+5.7+10-8.4等于多少
2x-6.6=5x-8.4
初中,有理数的加减法.(-7)-9-(-3)+(-5),-4.2+5.7-8.4+10,(-1.3)-(-3.2), -
计算:(1)-4.2+5.7-8.4+10; (2)6.1-3.7-4.9+1.8;(
10-x=7
(老实说什么让用"去加号去负号"法.来写.)1,-4.2+5.7–8.4+10
(1)-4.2+5.7—8.4+10 (2)-4/1+6/5+3/2—2/1
有理数的加减法.-4.2+5.7-8.4+10,-1/4+5/6+2/3-1/2,12-(-18)+(-7)-15,4.