2.7*25%+40*2.5%+3.3/4 简算

问题描述:

2.7*25%+40*2.5%+3.3/4 简算

2.7*25%+40*2.5%+3.3/4
=2.7*25%+4*25%+3.3×1/4
=【2.7+4+3.3】×1/4
=10×1/4
=2.5