I picked example without confusion on purpose, because most people will generally avoid patterns similar to what OP posted.
But if you want something more ambigious:
This is clearly 5/(2 * (a+9)). If we write this the form that the OP uses: 5/2(a+9) - it’s fucked beyond all recognition.
I think the issue comes with “division and multiplication”, and “addition and subtraction”
Here, I see people saying “Brackets/Parenthesis > Division > Multiplication > Subtraction > Addition” when I was taught “Brackets/Parenthesis > Division or multiplication, left to right > Subtraction or addition, left to right”
That’s not lazyness. Multiplication is always done before addition. No need for parenthesis for that.
I picked example without confusion on purpose, because most people will generally avoid patterns similar to what OP posted. But if you want something more ambigious:
This is clearly
5/(2 * (a+9)). If we write this the form that the OP uses:5/2(a+9)- it’s fucked beyond all recognition.I think the issue comes with “division and multiplication”, and “addition and subtraction” Here, I see people saying “Brackets/Parenthesis > Division > Multiplication > Subtraction > Addition” when I was taught “Brackets/Parenthesis > Division or multiplication, left to right > Subtraction or addition, left to right”