怎样简便就怎样算.718×37-7181113×37+73×1113-19×111324×5143+51×194369×1354-13×1554.-数学
题文
怎样简便就怎样算.
24×
69×
|
答案
(1)
=
=
=14; (2)
=
=
=77; (3)24×
=24×
=(24+19)×
=43×
=51; (4)69×
=23×
|
题文
怎样简便就怎样算.
24×
69×
|
答案
(1)
=
=
=14; (2)
=
=
=77; (3)24×
=24×
=(24+19)×
=43×
=51; (4)69×
=23×
|