alt Hacker NewsMultiplication needs to be automatic for doing algebra: FOIL and factoring polynomials immediately come to mind.
Long division, at least conceptually, is also present in algebra and partial fractions.
Multiplication needs to be automatic for doing algebra: FOIL and factoring polynomials immediately come to mind.
Long division, at least conceptually, is also present in algebra and partial fractions.
Similarly, algebra needs to be automatic to do calculus.
Everything builds on everything else.