End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://dars.pdf-doc.ir/file/18007/طرح-درس-ریاضی-پنجم-ابتدایی-نسبت-های-مساوی