I don't know if there are countries. I believe that if there actually was a unified accelerated math framework that was really emphasized starting age 4/5 then

I don't know if there are countries. I believe that if there actually was a unified accelerated math framework that was really emphasized starting age 4/5 then kids would be absolutely fantastic at math. > What's the point ... ? Paraphrasing what I said a comment above, you drill addition and subtraction until everyone is good at it, then you drill multiplication, then you do basic division, then you start introducing basic one variable algebra with "move plus to the other side to get minus" etc. The application is using algebra for word problems; formalism can come later.