78/76×71/77简便算法
78/76×71/77简便算法
日期：2022-04-06 10:51:19 人气：1
解：
78/76x71/77
=（77+1）/76x71/77
=77/76x71/77+1/76x71/77
=71/76+1/76x71/77
=70/76+1/76+1/76x71/77
=70/76+1/76x（77&#
78/76x71/77
=（77+1）/76x71/77
=77/76x71/77+1/76x71/77
=71/76+1/76x71/77
=70/76+1/76+1/76x71/77
=70/76+1/76x（77&#