Su Jiaoban's answer to the supplementary exercises of mathematics in the first volume of the sixth grade of primary school Xiaohong bought 13 stamps with 6 and 8 cents, and spent 4 cents for 8 yuan to see how many stamps she bought. Hello! It can be solved by hypothesis.

Suppose that the little red buy 13 are all 6 horns, and 7 yuan needs 13 * 6 = 8 horns.

8 yuan 4 minus 7 yuan 8 =6.

6\(8-6)=3 pieces

Then there are six angles: 13-3= 10.

A: Six-corner tickets 10, and three eight-corner tickets.

I hope it will help you and adopt favorable comments. Thank you!