In the equation 4+5 x 2= ?

Question

Do You first multiple 5x2 then add 4 

or do you add 4+5 and multiply by 2 ?

Answer 1

Order of Operations: PEMDAS
1. Parenthesis
2. Exponents
3. Multiplication/Division : left to right as encountered
4. Addition/Subtraction

Within parenthesis, if there are several operations,
follow the same order on "emdas"

4 + 5 * 2 = 4 + 10 = 14
**************************
4 + 3*7 - (6*2 - 7)² - 4 ÷ (2 - 3)

First do inside parenthesis

= 4 + 3*7 - (12 - 7)² - 4 ÷ (-1)

= 4 + 3 * 7 - 5² - 4 ÷ (-1)

Then exponents

= 4+ 3 * 7 - 25 - 4 ÷ (-1)

Then multiplication & division, left to right

= 4 + 21 - 25 - (-4)

= 4

Answer 2

Naki,

 

Order of operations say that you multiply and divide before you add and subtract. So first, you multiply 5 by 2, then add.

 

Keep working!

 

Mary