5.36循环 -(7.2-1.28*2.5)/11的简便方法,

问题描述:

5.36循环 -(7.2-1.28*2.5)/11的简便方法,

5.3636.-(7.2-1.28*2.5)/11
=5.3636.-(7.2-0.32*4*2.5)/11 利用2.5×4=10
=5.3636.-(7.2-3.2)/11
=5.3636.-4/11 这里实在没法简便了
=5 4/11=0.3636.