A brush costs 3 yuan, and Xiaohong has 20 yuan, so buy a few at most.

You can buy up to six brushes. Answer: Answer analysis: 20÷3=6 (pieces) ... 2 (yuan) a brush of 3 yuan money, Xiaohong has 20 yuan, and can buy up to 6 brushes, leaving 2 yuan.

Brush is a traditional writing tool which originated in China. Known as jade tube and jade tube, it is listed as one of Four Treasures of the Study in China. The writing brush was invented by the Han nationality in production practice. With the continuous development of human society, the industrious and intelligent Han nationality constantly sums up experience, preserves the essence, abandons the dross and dares to explore and innovate. For thousands of years, it has made outstanding contributions to creating the splendid culture of the Han nationality and promoting the cultural exchanges between the Han nationality and all ethnic groups in the world.

At first, the brush was made of rabbit hair, and later it was made of sheep, ferrets, wolves, chickens, rats and other animals. The pen tube is made of bamboo or other materials. The head is round and pointed, which is used for traditional writing and painting. Brush is a treasure provided by the Han nationality to the world art treasure house with a long history. Types of brush: There are many types of brush, which can be divided according to size, bristle, source, shape, pen tube and so on. Let's be specific.

1, the size of the brush can be divided into small characters, Chinese characters and large characters.

2. Brush can be divided into soft hair, hard hair and double hair. Bristle is mainly made of hard ordinary hair such as ferret hair, rabbit hair and bristles. It is characterized by strong elasticity, sharpness, great strength and easy to master, but it is not as good as soft hair. Soft wool is mainly made of goat wool, green wool and northwest yellow wool. It is characterized by softness, roundness, more ink storage and full strokes, but it is not easy to master, so you can practice brushwork. Double-stranded brushes are made of two kinds of animal hair with different hardness, and the elasticity of these pens is between soft and hard.

3. Source brushes can be divided into: tire brush, wolf brush, rabbit shoulder brush, deer brush, chicken brush, duck brush, brush, pig brush, mouse brush, tiger brush, ear brush, etc.

4. The shape of the brush can be divided into: round, pointed, etc.

5, brush brush brush is divided into: gold, silver, ivory, glass, rosewood, spotted bamboo and so on.