简便运算3.78×99+3.78
问题描述:
简便运算3.78×99+3.78
答
3.78×99+3.78
=3.78×(99+1)
=3.78×100
=378
简便运算3.78×99+3.78
3.78×99+3.78
=3.78×(99+1)
=3.78×100
=378