25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)

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25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)25×69+75×77怎么简算啊

25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)
25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)

25×69+75×77怎么简算啊?(=@__@=)帮帮忙吧,小妹一定酬谢!(⊙o⊙)
25×69+75×77
=25×3×23+25×3×77
=25×3×(23+77)
=75×100
=7500

25*69+75*77=25*3*23+75*77=75*23+75*77=75*(23+77)=75*100=7500

=25*69+25*3*77
=25*(69+231)
=25*300
=7500

25*69+75*77
=25*3*23+75*77
=75*(23+77)
=7500

25×69+75×77 == 25*3*23+75*77 == 75*(23+77)==7500

25×69+75×77
=25×(69+3×77)
=25×(69+231)
=25×300
=7500