HEH#80 Kenken Mystery Cache

How to play KenKen
Your goal is to fill in the whole grid with numbers, making sure no number is repeated in any row or column.
In this 6x6 puzzle, use numbers 1-6.
The heavily-outlined areas are called “cages.”
The top left corner of each cage has a “target number” and math operation. The numbers you enter into a cage must combine (in any order) to produce the target number using the math operation noted (+, -, x, ÷).
A cage with one square is a “Freebie” just fill in the number you’re given.
Remember, a number cannot be repeated within the same row or column.

Assume N44 56.W6xx W78 O2x.xxx