Приемы быстрого счета.
Рассмотрим приёмы, при помощи которых можно быстро складывать, умножать и делить числа.
4 weeks ago 00:30:14 1
1 month ago 00:36:31 1
1 month ago 00:29:01 1
1 month ago 00:07:11 1
1 month ago 00:02:09 1
1 month ago 03:30:05 1
1 month ago 00:00:00 2
1 month ago 00:00:56 1
1 month ago 00:12:29 1
1 month ago 00:15:39 1
1 month ago 00:12:22 1
1 month ago 00:08:16 1
1 month ago 00:00:18 1
1 month ago 00:13:33 1
1 month ago 00:03:10 1
1 month ago 00:02:56 1
1 month ago 00:00:08 1
1 month ago 00:00:09 1
1 month ago 00:18:55 1
1 month ago 00:47:21 1
1 month ago 00:25:02 1
1 month ago 00:07:05 1
1 month ago 00:26:36 1
1 month ago 00:00:38 1
