初一数学加减乘除混合运算2道
问题描述：
初一数学加减乘除混合运算2道
答
[35.16*0.25+38.42/2)*0.2-1.63-2.36]/0.25=[(8.79+19.21)*0.2-1.63-2.36]/0.25=[5.6-1.63-2.36}/0.25=1.61*4=6.44[(42.7*0.75+57.3-57.3*0.25）/3]*7972=[(42.7*0.75+57.3*0.75）/3]*7972=(100*0.75/3)*7972=100*79...