15.7-3.75-4.25 简便算
问题描述:
15.7-3.75-4.25 简便算
答
15.7-3.75-4.25=15-(3.75+4.25)=15-8=7
答
15.7-(3.75+4.25)
=15.7-8
=7.7
答
=15.7-(3.75+4.25)
=15.7-8
=7.7
答
=15.7-(3.75+4.25)
=15.7-8
=7.7
答
15.7-3.75-4.25
=15.7-(3.75+4.25)
=15.7-8
=7.7
答
15.7-3.75-4.25=15.7-(3.75+4.25)=15.7-8=7.7