Question

7.25×1.6+1.6×7.25+1.6怎么简便运算？

Answer 1

把1.6作为公因式提取出来，就变成了1.6*（7.25+7.25+1）＝1.6×15.5＝1.6×31/2＝0.8×31＝24.8

Answer 2

=1.6x(7.25+7.25+1)
=1.6x15.5
=15.5x2x0.8
=31x0.8
=24.8

Answer 3

7.25×1.6+1.6×7.25+1.6
=1.6×(7.25+7.25+1)
=1.6×15.5
=24.8
望采纳。