Свойства сложения рациональных чисел, 6 класс
Переместительное свойство сложения: а b=b a
Сочетательное свойство: (a b) c=a (b c)
7 months ago 00:08:50 2
7 months ago 01:17:52 0
7 months ago 02:10:42 25
8 months ago 00:30:05 0
8 months ago 00:23:26 0
8 months ago 01:30:50 4
8 months ago 01:28:52 67
8 months ago 00:02:30 1
8 months ago 00:13:32 1
8 months ago 00:16:06 2
8 months ago 00:09:27 1
8 months ago 00:08:31 0
8 months ago 00:26:26 0
7 months ago 01:34:50 1
9 months ago 00:09:40 0
9 months ago 01:37:27 47
9 months ago 02:29:31 0
9 months ago 02:41:22 0
9 months ago 02:09:49 0
9 months ago 00:45:08 0
10 months ago 00:34:35 0
10 months ago 00:17:19 1
10 months ago 00:08:02 2
10 months ago 00:01:00 0
