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几个几个地数,每次数的个数越多,数的次数就越少。
7
2
14
3
4
12
4
12
3
7
2
14
2
14
7
横着数:每行有__块,有__行,一共有__块。
竖着数:每列有__块,有__列,一共有__块。
5
3
15
3
5
15
5
5
5
15
块
3
3
3
3
3
15
块
一共有25个。
4
5
20
4
5