Chapter 15 Youju Yousan

She simply taught her son abacus, but did not think that the gifted son, soon came to mind belongs to his own head of the abacus image. In addition, three groups of addition and subtraction mental arithmetic can be completed in a very short time.

"Of course... Both of you are old enough to go to school."

"Yeah, great, brother... We can finally go to school."

And Kay's voice is not bad, his brother is good at multiplying and dividing, and his sister is good at adding and subtracting. Both guys are endowed with genius and memory.

It seems that the two brothers and sisters are...