3.24×0.16+0.0324×84如何巧?
问题描述:
3.24×0.16+0.0324×84如何巧?
答
3.24×0.16+0.0324×84
=3.24×0.16+3.24×0.84
=3.24×(0.16+0.84)
=3.24