数字乘除法玩具（Digital multiplication and division toys）

这是一个数学玩具，正反互为答案。辅助教学工具

pla和petg均可使用，默认参数为petg，可直接开始打印

This is a math toy, with positive and negative answers for each other. Auxiliary teaching tools

Both pla and petg can be used, with the default parameter being petg, and printing can start directly

Design by 一点三维（APoint3D） on MakerWorld (license: CC0).