1.you follow the order of operations B- brackets
There are no brackets, no exponents, but there is divistion and
2. if there is multiplication and divistion then you have
to go left to right. So we do 4x3 first. Once you've answered it everything else falls straight down.
3. Next you do 12 divided by 2. Once you've answered everything falls straight down.
For more help with bedmas you can go tohttp://mathcentral.uregina.ca/QQ/database/QQ.09.07/h/brit1.html
you can also watch this video for help