Свойства сложения 2 класс
Познакомить переместительным и сочетательным свойствами сложения, показать значение данного приема при вычислениях.
5 months ago 00:03:56 1
5 months ago 00:11:21 1
5 months ago 01:37:27 1
5 months ago 00:04:55 1
5 months ago 00:02:56 1
5 months ago 00:07:26 1
5 months ago 01:05:42 1
5 months ago 00:26:26 1
5 months ago 00:04:41 1
5 months ago 00:08:50 1
5 months ago 02:02:35 1
5 months ago 00:03:21 1
5 months ago 00:01:18 1
5 months ago 00:01:01 1
5 months ago 00:01:55 1
5 months ago 00:05:00 1
5 months ago 00:04:56 1
5 months ago 02:41:22 1
5 months ago 00:14:17 4
5 months ago 00:12:54 1
5 months ago 01:06:56 1
5 months ago 01:52:00 1
5 months ago 00:29:19 1
5 months ago 00:34:35 1
