A4 paper size: 2 10x297mm

Math exercise book size: about 183x258mm.

Generally, the content printed on A4 paper is about the same size as the math exercise book, because the printing will leave blank space at the top, bottom, left and right.

Extended data:

For example, "A4" paper is a type A basic size paper folded four times, so the area of an A4 paper is a quarter of the area of the basic paper, that is,116. The rest and so on.

There is also a kind of K-type paper, which is often called open-type paper. K-type paper can only be used in China. Generally, A-type paper is used. Whether it is type A or type B, its classification is like this.

For example, A5 is twice as big as A6, A4 is twice as big as A5, A3 is twice as big as A4, B4 is twice as big as B5, and B3 is twice as big as B4, while K-type classification is to divide a large piece of 10K paper into two 2K pieces, divide 2K paper into half of 4K, divide 4K paper into half of 8K, divide 8K into half of 16K, and divide1.

The format size stipulated by the state is an international standard series, which has been incorporated into the national industry standard GB/T 1999 and implemented nationwide. At present, the format specifications of books and periodicals are mainly series specifications, as follows:

a4( 16k)297mm×2 10mm；

a5(32k)2 10mm× 148mm；

a6(64k) 144mm× 105mm；

a3(8k)420mm×297mm；

Note: The size of A3(8k) has not been determined, but it is widely used. A4(2 10*297mm) paper is widely used to print copy paper in the world, but the United States and some countries use abnormal A4 paper: 2 16*279mm, commonly known as American standard and American standard.

Baidu encyclopedia -a4