This is a fun cut-and-paste activity to help kids choose the best strategy for solving a math fact. You can spend lots of time teaching strategies but at some point kids have to get good at knowing when to apply which strategy.
This activity has one page with "pig pens." Each pen is labeled with a strategy:
-think 10 to add 9
There are also pigs with math facts on them to cut out. Kids cut out the pigs and paste them into the correct pen based on the strategy used to solve the fact.