I removed some tile from a 10' by 15' section of my basement floor. As I was removing the tile, much of the concrete chipped away leaving low areas. Other areas have thin set remaining in the shape of the trowel grooves. And yet some areas are at the original level of the concrete floor. I want to eventually lay down some type of laminate hardwood.
How do I fill the low spots and knock down the high spots so it's level?