计算 0.25*(-2.15)+0.75*(+3.15)/3=?
计算 0.25*(-2.15)+0.75*(+3.15)/3=?
-0.75+(-2.5)+0.25计算过程
递等式计算:48×0.25×1.25=?简便计算
计算:(+3)+(+4)= (-2)+(+8)= (-0.25)+(+0.75)= (-2)+(-5)= (-9)+(+
计算:0.25^-2分之1+8^-3分之2=?
0.25×4/13+3/4×9/13=?简便计算
"2计算"和"3计算",
0.75-0.25+0.75-0.25的 简便计算
简便计算:8×[0.75-0.25×(4-2)]
30/0.25+30/0.75 简便计算
0.75*4*0.25*4 简便计算
用简便方法计算4.8×0.25=