# How do you simplify  1-4+5-(-2)?

Nov 8, 2015

4

#### Explanation:

We use BIDMAS. This stands for:
Brackets
Indices
Division
Multiplication
Addition
Subtraction.

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:
We have $- \left(- 2\right)$. This equals $2$.
No Indices, Divisions, or Multiplications, so we pass into Addition and Subtraction:
$1 - 4 + 5 - \left(- 2\right)$, but we've done Brackets:
$1 - 4 + 5 + 2$.
We then follow a left-to-right order:
$1 - 4 = - 3$
$- 3 + 5 = 2$
$2 + 2 = 4$. So, we are left with $1 - 4 + 5 - \left(- 2\right)$ being equal to:
$4$.