Question

25x69x2x4怎么用简便方法计算

Answer 1

25x69x2x4

=25×4×2×69

=100×2×69

=200×69

=13800

                                   

Answer 2

26×6+25×6-6
=26×6+25×6-6×1
=（26+25-1）×6
=（51-1）×6
=50×6
=300

Answer 3

25×69×2×4
＝25×4×2×69
＝200×69
＝13800