{(4x9+9)x25}+12 = 按公式法算出来
问题描述:
{(4x9+9)x25}+12 = 按公式法算出来
答
((4+1)×9×25)+12=5×9×25+12=125×9+12=1125+12=1137
{(4x9+9)x25}+12 = 按公式法算出来
((4+1)×9×25)+12=5×9×25+12=125×9+12=1125+12=1137