0.79×0.18+0.79×36+0.79×0.44怎么巧算?
问题描述:
0.79×0.18+0.79×36+0.79×0.44怎么巧算?
答
0.79×0.18+0.79×36+0.79×0.44
=0.79×(0.18+36+0.44)
=0.79×(36+0.62)
=28.9298