如题所述
第1个回答 2016-04-24
124×25×64
=31×4×25×64
=4×25×64×31
=100×64×31
=6400×31
=6400×(30+1)
=6400×30+6400×1
=192000+6400
=198400追答
=31×4×25×64
=4×25×64×31
=100×64×31
=6400×31
=6400×(30+1)
=6400×30+6400×1
=192000+6400
=198400追答
第2个回答 2016-04-24
=25x4x16x96 =99x99+99+100 =1600x96 =99x(99+1)+100 =153600 =99x100+100 =9900+100 =10000
