58.76-(8.76-15)怎么算

问题描述:

58.76-(8.76-15)怎么算

简便算法么?
58.76-(8.76-15)
=58+0.76-(8+0.76-15)
=58+0.76-8-0.76+15
=58-8+15+0.76-0.76
=65