-21又2/3+3又-1/4-(-2/3)-(+1/4)的计算过程;
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/04 15:05:35
xJ@_e(
a23$t!sImbS\V\tUH+tҋucξnjOk揭\r,?O[/'1}zZ\I'ըM6q0rCscߖlފr8@J5M)/;SL& !_uQMת7(mх3IiF<3qȭ
Z3Mfc@LH<T@CA !98-JvZg(
Eg\J22G\
-21又2/3+3又-1/4-(-2/3)-(+1/4)的计算过程;
-21又2/3+3又-1/4-(-2/3)-(+1/4)的计算过程;
-21又2/3+3又-1/4-(-2/3)-(+1/4)的计算过程;
-21又2/3+3又-1/4-(-2/3)-(+1/4)
=(-21又2/3+2/3)+(3又1/4-1/4)
=-21+2
=-19
-21又2/3+3又-1/4-(-2/3)-(+1/4)
=-21 - 2/3 -3 -1/4 +2/3- 1/4
=-21-3 -1/2
=-24又1/2