What is mathematics, mathematics in three different ways, number system (Number, Numeral, Digit)

[@iqraashfaq87]

جزاک اللہ سر❤ اللہ پاک آپ کو اجر دے

[@sanasaleem7147]

Starting from the basics,that's the quality of a good mentor...
Well explained sir....

[@statisticsineasysteps7735]

can you explain chapter wise all these contents?