Abacus is not just a tool to learn how to use it, but the skill... once for the lifetime...so kindly teach people in details
not clear.how did u get the answer 9?
Abacus is not just a tool to learn how to use it, but the skill... once for the lifetime...
ReplyDeleteso kindly teach people in details
not clear.how did u get the answer 9?
ReplyDelete