用简便算法25ᠧ46+56ᠧ27=

2024-12-23 00:27:04
推荐回答(3个)
回答1:

25✘46+56✘2
=25×2×23+56×2
=50×23+(50+6)×2
=50×23+50×2+12
=50×(23+2)+12
=50×25+12
=1250+12
=1262

回答2:


回答3:

25×46+56×27

=25×2×23+56×27

=50×23+(50+6)×27

=50×23 + 50×27 + 6×27

=50 ×(23+27)+2×9×9

= 50 × 50 + 2 × 81

= 2500 + 162

= 2662