"' Why is it good to be able to calculate by mental math? (1)"  

blog : 07-Jan-2022

One of the goals of Pygmalion is for children to be able to do 4-digit addition and subtraction operations by mental arithmetic at around the age of 6. Many people find it hard to believe that a child can reach such a high level at such an early age, until they see it actually happen, but if the child is nurtured correctly they can do it without having to do hundreds of pages of calculation exercises.