Step by step
The question
Question: work out (12 − 4) ÷ (5 − 1) × 3.
(12 − 4) ÷ (5 − 1) × 3
1 Brackets first
Brackets come first.
Order: ( ) → x² √ → × ÷ → + −
12 minus 4 is 8.
= 8 ÷ (5 − 1) × 3
Brackets come first.
5 minus 1 is 4.
= 8 ÷ 4 × 3
2 Times and divide
Times and divide: we go from left to right.
same kind: left → right
8 divided by 4 is 2.
= 2 × 3
2 times 3 is 6.
= 6
So the answer is 6.
Let's look back.
First: brackets first.
Last: times and divide.
Answer
= 6