Fold in half, Chinese word, which means to fold in half; 50% off.

Folding in half, as the name implies, is like origami. When a piece of paper is folded in half, the area becomes half of its original size. Applied to mathematics, folding in half is to halve the original element (that is, multiply it by half) and then calculate it. Therefore, selling half is selling at half price. I hope you are satisfied with my answer.

Folding quotation explanation:

Lu Xun's "pseudo-casual reading, literature discount": "For example, praise your face as' two earlobes and shoulders'. At this time, we will at least fold him in half, thinking that it may be a little bigger than usual, but we will never believe that his ears are like pigs. "

Ru Zhijuan's tall poplar: "Aunt He suddenly sat up, put on clothes, reached under the pillow and took out a red envelope folded in half."