Psd retro sign collection flower pattern fonts https://www.rawpixel.com/image/2668041/free-illustration-psdView license
Math signs doodle typography vector font https://www.rawpixel.com/image/2514090/free-illustration-vector-equal-set-abstract-background-doodle-fontView license
Symbol multiplication sign png paper cut symbol https://www.rawpixel.com/image/2671368/free-illustration-png-advertisementView license
Symbol multiplication sign png paper cut symbol https://www.rawpixel.com/image/2671371/free-illustration-png-advertisementView license