数学题25x(32十4)用简便法怎么计算

2025-03-12 19:03:03
推荐回答(4个)
回答1:

原式
=25x36
=25x4x9
=100x9
=900

或者:原式
=25x32+25x4
=25x4x8+100
=100x8+100
=800+100
=900

回答2:

=25x32+25x4=25x4x2+25x8=200+200=400 希望采纳

回答3:

分成25*40-25*4,我觉着这样算挺快

回答4:

=25x32 25x4
=25x4x8 25x4
=800 100
=900