[Tom Simpson]

7th grade math question. Order of operations. When there is no parantheses do you answer the way it is written ex: 5+10+18x19=627. Is this correct?

[ZoeMarie]

I get 357 because you have to multiply 18x19 before you do anything else

[ikryspy]

PEMDAS
Parentheses. Exponents. Multiplication. Division. Addition. Subtraction.
Do this process in order from left to right.
If its not there go to the next one.

[mosh kids]

357 is the correct answer. You nust always use the please excuse my dear aunt sally rule

[KISS]

To clarify ikryspy's post. It's not EXACTLY right. Multiplication and division can be switched to make the problem easier and so can addition and subtraction.

9/3 * 3 can be: 3 * 3 or 27/3; both =9 but the first was the easier problem.

-3^2 is not covered in the rules either. That funky minus sign is called a urinary minus and it's preformed before exponeniation. Thus it's interpreted as (-3)^2 instead of - (3^2) or 9 vs -9. 9 is the correct answer.

[DoulaLC]

To clarify ikryspy's post. It's not EXACTLY right. Multiplication and division can be switched to make the problem easier and so can addition and subtraction.

9/3 * 3 can be: 3 * 3 or 27/3; both =9 but the first was the easier problem.

-3^2 is not covered in the rules either. That funky minus sign is called a urinary minus and it's preformed before exponeniation. Thus it's interpreted as (-3)^2 instead of - (3^2) or 9 vs -9. 9 is the correct answer.

This is one reason why I like teaching third grade... :D

[Firefox_Answer]

5+10+18x19

5+10+18=33

33*19=627

[Carytib]

you would use PEMDAS Parenthesis Exponents Multiplacation Division Addition subtraction so you would multiply 18x19 and get 342 and then add 10+5=15 so add 342+15=357 so 357 is your answer not 627