四年级上册简便计算题125x(80-8)
问题描述:
四年级上册简便计算题125x(80-8)
答
=【125x80】-【128x8】
=10000-1000
=9000
答
=125x8x(80-8)/8
=1000x72\8
=1000x9
=9000
答
125x(80-8)
=125×80-125×8
=10000-1000
=9000
答
等于125x80减125x8