TeachingIn2ndGrade

I made this short and sweet powerpoint because subtracting three digit numbers always takes several weeks to teach. I use this to supplement my math curriculum. We've all been there: The internet suddenly decides to not cooperate, or we go to copy a math worksheet and the copier is jammed. Instead, I don't have to have any of those fears. I can easily open this up from my desktop and have problems already typed without me having to think! It also allows students to use their whiteboards and solv