Does my calculator follow the ooo? If you do it right, yes but if you do it wrong, then no. For instance here is a math question: 2+3×2. You might have done 2+3=5 first. Then 5×2=10. You might think this is right, but it is not! First you have to do the times first. Do 3×2=6. Then do 6+2=8. So yes, my calculator follows the order of ooo.