(-0.5)-(-3又1/4)+2.75-(+7又1/2)-2又1/2÷1又1/4*(-4)60÷(-1/2+1/3+1/5){30-(7/9+5/6-11/12)*36}÷(-5)(3-3又1/2)÷4*1/2-1的4次方-(1-0.5)
问题描述:
(-0.5)-(-3又1/4)+2.75-(+7又1/2)
-2又1/2÷1又1/4*(-4)
60÷(-1/2+1/3+1/5)
{30-(7/9+5/6-11/12)*36}÷(-5)
(3-3又1/2)÷4*1/2-1的4次方-(1-0.5)*1/3*{1-(-2)²}
(-4/5)*5/13-(-3/5)*(-5/13)-5/13*(-1又3/5)
|1/3-1/2|+|1/4-1/3|+|1/5-1/4|+……|1/2012-1/2011|
/ 是分之
答
(-0.5)-(-3又1/4)+2.75-(+7又1/2)=-0.5+3.25+2.75-7.5=3.25+2.75-7.5-0.5=6-8=-2-2又1/2÷1又1/4*(-4)=-2.5÷1.25x(-4)=-2x(-4)=860÷(-1/2+1/3+1/5)=60÷(1/30)=2{30-(7/9+5/6-11/12)*36}÷(-5)=...