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

1 Answer
Hugo C.
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 -(-2)−(−2). This equals 22.
No Indices, Divisions, or Multiplications, so we pass into Addition and Subtraction:
1-4+5-(-2)1−4+5−(−2), but we've done Brackets:
1-4+5+21−4+5+2.
We then follow a left-to-right order:
1-4=-31−4=−3
-3+5=2−3+5=2
2+2=42+2=4. So, we are left with 1-4+5-(-2)1−4+5−(−2) being equal to:
44.

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