what is a box between two numbers called in math equation

what is a box between two numbers called in math equation Product Description：

what is a box between two numbers called in math equation & what is a box between two numbers called in math equation é um slot online desenvolvido pela Red Tiger Gaming.  .

Product parameters：283697

Available Colors：#348560

Available Sizes：541 * 181 * 535

Indicated for：bitcoin rush recension

Model Reference：what is a box between two numbers called in math equation

country of origin：USA

Customer Reviews：what is a box between two numbers called in math equation é um slot online desenvolvido pela Red Tiger Gaming. .