We worked on Mental Math the entire time!!! I had another activity planned, but everyone was so determined to finish their booklet work that I really didn't want to interrupt that! :)
I must say, as a whole, we have a great group of mental mathematicians. (I was impressed!) I observed great strategies while I was walking around the room!
We went through the powerpoint below (slides 0-12) together and then worked diligently out of our Mental Math Booklets completing sections for outcome B16.