Question

Evaluate: [(21 + 6) − 3^2] ÷ 9 • 2= is the answer 4

Answer 1

If you do: \[21+6=27\]then: \[27-9=18\]then:\[18/9=2\]then:\[2*2=4\]

Answer 2

so im rite

Answer 3

Yes

Answer 4

Use PEMDAS
Parentheses
Exponents
Multiply
Divide
Add
Subtract.
So yes you are correct

Answer 5

yay thank you all

Answer 6

No problem :)

Answer 7

I call it BIDMAS:
Brackets
Indices
Division
Multiplication
Addition
Subtraction

But the same idea.

Answer 8

depends on where you are :)

Answer 9

Summary of Order of Operations:
1. First simplify expressions within grouping symbols.
2. Then simplify powers.
3. Then do all multiplications and divisions in order from left to right.
4. Then do all additions and subtractions in order from left to right.