Evaluation of my Animated story

I will design and produce (Animed) for
(Kids 20 to 50 year old ) to be used to.
(My Aimed story is about a Dogs.
that are on street.).

My Animated story is currently under construction.
Could you please help me by gaveing me feedback on my conceptual.
of my animated story

Adding Decimals

Today I did a DLO showing how to find out how to solve a Decimals so I add .4 to the 128.6 and take away .4 from 120.9. Under the top one I add 100 + 100 = 200 then I add 2 + 2 = 4 then I add 9 + 0 = 9 the answer was 249.5.