Reflection math

I think i should work about numbers and operations because in my test i got an M for number and operation and E for problem solving and E for algebra so i would like to get an E for numbers and operations too. I think to improve on numbers and operations i need to work more on pemdas. some times on tests i write some careless mistakes like 6+7x2 and i could improve not making careless mistakes by CHECKING which sometimes i don't do

I also did a powtoon presentation about pemdas that helped me a bit and here was my equation.