How do you solve (3\times 3- ( 2+ 1) ) \div ( 5- 2)?

1 Answer
Mar 3, 2018

2, using BODMAS / PEMDAS

Explanation:

BODMAS or PEMDAS rule states the order you have to complete operations in:

Brackets
Of (powers/exponents)
Division and Multiplication
Addition and Subtraction

Usually we start with the parentheses within the parentheses. In other words, the smallest brackets.

(3*3-(2+1))-:(5-2)

Here, (2+1) is the most important parenthesis, and should be solved first:

(3*3-3)-:(5-2)

Now, we have two brackets. What do we do?

Remember, multiplication comes before addition or subtraction, so we complete that operation first (3*3)

->(9-3)-:(5-2)

[note: we do not do division now, as it is an operation outside the parentheses]

Now, we have two subtraction operations. Since both are withing brackets, and both are subtraction, they are on the same level on the BODMAS scale. We do them simultaneously:

->(6)-:(3)

We can remove the brackets, as there are no more operations within them:

->6-:3

Solve it:

=2

Thus, solved.