Mathematics for SSC IBPS SBI CTET HTET DSSSB KVS UPSC Railway FCI or other competitive Exams

We are uploading here tricks / short cuts / and Basis rules for Mathematics for SSC IBPS SBI CTET HTET DSSSB KVS UPSC Railway FCI or other competitive Exams. I believe these tricks will be extremely useful. We have developed our methods and students have found them extremely useful over the years.