Addition

Descending into his secret crypt, Igor walks down 37 steps. Then he trips and falls down the remaining 52 steps before landing at the bottom with a nasty bump on his head. How many steps are there in total?

89 stairs
One awful orc has sharpened the bones of his enemies into 157 arrowheads. Another awful orc has sharpened the bones of her enemies into 388 arrowheads. How many arrowheads do they have all together?

545 arrowheads