Specifications: [Addition Roller] includes ink and packaging box, [Subtraction Roller] includes ink and packaging box, [Multiplication Roller] includes ink and packaging box, [Division Roller] includes ink and packaging box,

Function: Addition and subtraction question generating stamp

Product: Math Question Generator

Purpose: A powerful tool for generating oral calculation problems

Colors: Blue, Pink

Size: 5cm*7cm

Target audience: Teachers, parents, students

Purpose: Teaching, tutoring, learning

Title: 100 problems