This is a simple way to solve hard math questions.
My goal Is to use a broad range of mental strategies to solve addition and subtraction problems.
We had to learn three different strategies (Tidy numbers, Place value and Reversibility). Some were a little hard, but My Favorite strategy Was Place Value.
Here is an example:
123+321=
100+300=400
20+20=40
3+4=7
400+40+7=447
I hope you learned something!