62.2-(62.2-40)简便运算
问题描述:
62.2-(62.2-40)简便运算
答
62.2-(62.2-40)
=62.2-62.2+40
=0+40
=40
62.2-(62.2-40)简便运算
62.2-(62.2-40)
=62.2-62.2+40
=0+40
=40