Super Heroes of Abacus 🧮 Multiplication and Division in seconds.Can u do this? 2436× 4= ? 7998÷7=?

We work on brain of a human being, tell them they can imagine anything and how to get benefit of unused brain? This process totally based on Abacus mind calculator.
Many benefits gained by doing Abacus from which we all are unaware
I want to give knowledge to make people active and potential.
Thanks
Ms. NEHA GUPTA
MASTER ABACUS TRAINER
9899698414
INDIA