46乘61加23乘78巧算
问题描述:
46乘61加23乘78巧算
答
=23*2*61+23*78
=23*(122+78)
=23*200
=4600
答
46*61+23*78
=23*2*61+23*78
=23*122+23*78
=23*(122+78)
=23*200
=4600
答
46乘61加23乘78
=46×61+46×39
=46×100
=4600