Question

123×82+19×123×3-123简便运算？

Answer 1

你好，（82+19-1）×123
=100×123
=12300
满意请采纳谢谢！

Answer 2

这很明显的是提公因数，原式=123×（82+19×3-1）=123×138=

Answer 3

123x82十19X123ⅹ3一123
=123ⅹ(82十57一1)
=123X138
=12300十3690十984
=16974

Answer 4

123*82+ 123*19*3 -123*1=123*（82+19*3-1）=123*138=16974

Answer 5

解：原式=123X82+123Ⅹ57-123=
123X（82+57-1）=123X138=16974。