You are given a sentence in Japanese. Your job is to translate the Japanese sentence into English.

それで B + だとか A- だとかをかき集めてそれを3.4みたいな １個の数字にまとめ額にスタンプで押してそれがその人を表すというのです
So we collect your B pluses and your A minuses and we aggregate them into a number like 3.4, which is stamped on your forehead and sums up who you are.