Day -1	https://rajumaths.blogspot.com/2020/03/iit-foundation-course-day-1.html	https://youtu.be/MpcWrcyTFMo
day -2	https://rajumaths.blogspot.com/2020/04/iit-mathematics-day-2.html	https://youtu.be/FgIzK2_-mvA
day-3	https://rajumaths.blogspot.com/2020/04/iit-mathematics-day-3.html	https://youtu.be/RSV3yC1U1gg
Day-4	https://rajumaths.blogspot.com/2020/04/iit-mathematics-work-sheet-day-4.html	https://youtu.be/lmNH_bW9sDc

introduction of big numbers పెద్ద సంఖ్యల పరిచయం	https://youtu.be/FiYiB3lZo9g
Properties of Natural Numbers సహజసంఖ్యల ధర్మాలు	https://youtu.be/UQu2Hu_dqRA

Day- 5	https://rajumaths.blogspot.com/2020/04/iit-foundation-mathematics-day-5.html	https://youtu.be/fn3gwitiqwY
Day-6		https://youtu.be/fUdvcwSJHqk
Day-7		https://youtu.be/jobSrgCXikY
Fundamental operations on Integers		https://youtu.be/V3HCiIubqpc