Свойства сложения 2 класс
Познакомить переместительным и сочетательным свойствами сложения, показать значение данного приема при вычислениях.
9 years ago 00:15:20 105
5 years ago 00:16:32 1
10 years ago 00:07:38 22
2 years ago 00:13:07 6
5 years ago 00:04:17 8
5 years ago 00:21:22 207
5 years ago 00:07:31 5
4 years ago 00:15:54 28
4 years ago 00:11:11 7
5 years ago 00:07:26 37
5 years ago 00:06:36 2
5 years ago 00:02:59 12
3 years ago 00:02:21 2
9 months ago 00:09:27 1
2 years ago 00:02:30 1
2 years ago 00:09:48 2
2 years ago 00:08:36 1
2 years ago 00:03:04 5
7 years ago 00:03:57 39
4 years ago 00:03:21 8
5 years ago 00:05:48 1
3 years ago 00:04:36 13
2 years ago 00:07:55 3
1 year ago 02:41:22 16
