Gel mathematical symbols. These are children's toys for learning mathematics. The five symbols represent the basic mathematical symbols used in arithmetic,from left: addition,subtraction,multiplication,division,and,at far right,the equals sign | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Sambraus, Daniel |
Bildgröße: | 5157 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |