Calculators in early math classes, such as algebra, would be 100% detrimental to learning. Getting an intuitive understanding of addition and multiplication is

Calculators in early math classes, such as algebra, would be 100% detrimental to learning. Getting an intuitive understanding of addition and multiplication is invaluable and can only be obtained through repetition. Once you reach higher levels of math, the actual numbers become irrelevant so a calculator is fine. But for anything below that, you need to do it by hand to get any value.