How do you simplify # 1-4+5-(-2)#?
We use BIDMAS. This stands for:
Even though it might seem as though Multiplication goes after Division and Subtraction after addition, they are at the same level, so you'd follow a left-to-right order.
So, we first do Brackets:
No Indices, Divisions, or Multiplications, so we pass into Addition and Subtraction:
We then follow a left-to-right order: