(↑This is the solution of the question that we did on our class.)
At first I didn't even know what to do.The answer was suppose to be 14, but my answer was 40 at first😅.
I didn't get why the answer was 14 before Ms.Angela brought the blocks to explain it.
When Ms.Angela showed us how, I knew why the answer was 14.(picture is up there⇧)
now I don't know why I got 40..haha...