This question examines the problem-solving of integer elementary arithmetic, and the idea of solving the problem is as follows:

1, the number of story books is three times that of science and technology books, and the number of science and technology books is:

128÷(3+ 1)

= 128÷4

=32 (Ben)

A: There are 32 science and technology books.

2. Multiply the calculated value by 3, that is, the number of story books:

32×3=96 (Ben)

A: There are 96 story books.

Extended data

The method of elementary arithmetic:

1, same level, from left to right;

2. Two-stage operation, first multiply and then divide, then add and subtract.

3. When there are brackets, count the inside of brackets first, and then count the outside of brackets;

4. When there are multiple brackets, count the brackets first, then the brackets inside, then the braces inside, and finally the brackets outside.

If there is a power, calculate the power first.

5. In the mixed operation, the numbers in brackets are calculated first, and the brackets are from small to large. If there is a power, calculate the power first, and then from high to low.