Four math books weigh about 200 grams. The general four books here can be divided into: first, the content is average, second, the paper of the book is average, third, the packaging is average, and so on, all of which meet the meaning of this question, so generally speaking, it has nothing to do with weight.

Generally, four books will not have multiple problems. This math book weighs 200 grams. Books refer to spiritual and cultural products with material as the carrier created by the same producer or different producers through spiritual and material activities and a series of production relations.

Weight of various daily necessities:

Weight of a pack of candy: 400g, a pack of instant noodles: 120g, pheromone soap: 220g, net content of heart-to-heart printed toilet paper: 140G (excluding cores).

Black Toothpaste: 175g, Rejoice Essence Care Shampoo: 750ml, HR Helena Rubinstein SPA Bath Gel: 200ml, Philips electric toothbrush: 0.36kg, and milk powder: 400g.