(-5/8)×(-4)-0.25×(-5)×(-4)
/-0.75/+(+3又4分之1)-(-1.125)-/-0.25/+1又8分之5
用有理数计算6-9;(+4)-(-7);(-5)-(-8)
10-【-(-4)】+(-3)-5
计算:(-6)-(+5)+(-9)+(-4)-(-9)
- |- 0.25 |+(+4分之3)-(-0.125)+|-0.75|
数学题(x-4)/(x-3)+(x-6)/(x-5)=(x-8)/(x-7)+(x-10)/(x-9)解方程,
数学题目: --------—4+(-5)=-12 -15- ----------+(-1)=8 -9--------+
求这些题的解 -40-28-(-19)+(-24); 化简 (8a-6a)-(4a-5a)+(3a-2b)
几道初一计算题3×(-9)+7×(-9)(5/4-7/6)×(-8/7)(-54)/6/(-3)2×〔5+(-2)&su
简算:25×(-0.125)÷(-1/4)×(-4/5)×(-8)÷4/5
1111111成语接龙万众一心------( )------( )-----( )------收回成命
比-7大-5的数是().()比-4大3.