102乘36减72的简便运算
问题描述：
102乘36减72的简便运算
答
(102-2)*36
=3600
答
102x36-72
=102x36-36x2
=36x(102-2)
=36x100
=3600
答
102×36-72
=102×36-2×36
=36×(102-2)
=36×100
=3600