## Spicytaco1 one year ago What is the value of the expression picture attached

1. Spicytaco1

2. mathstudent55

Do you know PEMDAS?

3. anonymous

$\frac{ 10-2\times4 }{ 2 }$$\frac{ 10-8 }{ 2 }$$\frac{ 2 }{ 2 }$$1$

4. mathstudent55

That is the order of operations.

5. Spicytaco1

@mathstudent55 yes

6. anonymous

PEMDAS will help you make sure you get the correct answer. If you don't use it then you'll get a completely different answer.

7. anonymous

Use PEMDAS in this problem. First you would need to multiply the numerator before you can subtract.

8. anonymous

Once you multiply you can subtract. Lastly you just need to divide to get your answer.

9. mathstudent55

Also, a fraction means division and parentheses. $$\dfrac{10 - 2 \cdot 4}{2} = (10 - 2 \cdot 2) \div 2$$ Notice how the numerator of the fraction is all grouped in parentheses. This is what I meant before when I wrote that a fraction also means parentheses in addition to division.

10. mathstudent55

$$\dfrac{10 - 2 \cdot 4}{2} = (10 - 2 \cdot 2) \div 2 =$$ $$= (10 - 8) \div 2 = 2 \div 2 = 1$$

11. anonymous

(10−2⋅2)÷2 What happened here? @mathstudent55