Сургутские дети считают на сверхскорости
Ментальная арифметика - уникальная методика развития умственных способностей детей от 4 до 14 лет, основанная на системе устного счета
1 year ago 00:00:16 451
1 year ago 00:01:02 148
7 years ago 00:50:24 1.5K
8 years ago 00:02:16 371
5 years ago 00:00:15 5.1K
11 years ago 00:00:15 1.5K
1 year ago 00:01:02 5.1K
1 year ago 00:00:22 1.2K
8 years ago 00:02:16 8
11 months ago 00:00:19 4.1K
9 years ago 00:05:44 18
11 months ago 00:05:28 6.2K
1 year ago 00:01:02 3.6K
5 months ago 00:03:44 4K
9 years ago 00:05:33 6.3K
2 years ago 00:15:17 2
9 years ago 00:00:14 2.1K
11 months ago 00:00:27 1K
8 months ago 00:02:11 6.3K
1 year ago 00:03:21 4.2K
4 years ago 00:03:24 20
2 years ago 00:04:51 481
2 years ago 00:01:50 1.3K
3 years ago 00:00:11 140