9.75+99.75+999.75+9999.75.
9.75+99.75+999.75+9999.75.
计算:0.75+9.75+99.75+999.75+1= ?
估算:789*4、5392/9、99.75+999.75、7.37-1.63+2.37
99.75-4.25乘1.2.怎么简算
975×0.25+9.75×76-9.75 简便算法
(1) (-0.5)+(+4.5)+(-9.5)+9.75
12.56×0.8-9.75÷3
9.75*0.84怎么简便计算?
6.76-2.75/[10%*(9.75-4.25)]
6.75-2.75÷[10%×(9.75-174
X(8-X)=9.75
(-0.5)+(9/2)+(-19/2)+9.75=?