Question

8ⅹ4十78x3十78x3的简便计算？

Answer 1

8ⅹ4十78x3十78x3
=8ⅹ4十78x（3十3）
=8ⅹ4十78x6
=8ⅹ4十39x2x3x2
=8ⅹ4十117ⅹ4
=（8十117）ⅹ4
=125ⅹ4
=（100+25）ⅹ4
=100ⅹ4+25ⅹ4
=400+100
=500

Answer 2

8＊4+78＊3+78＊3

=32+78＊3＊2

=32+468

=500

Answer 3

8×4+78×3+78×3
=32+78×（3+3）
=32+78×6
=32+468
=500
望采纳 谢谢~~

Answer 4

这道理可以这样算：8×4+78×3+78×3=8×4+73×3×2=32+219×2=32+438=470

Answer 5

=32+78*6=32+78*5+78=110+390=500