Respuesta :

the easiest way to remember this is to do pmbas .
P stands for parenthesis
M stands for multiplication
D stands for division
A stands for addition
S stands for subtraction
you start at parenthesis then you look for division or multiplication after you solve those you do either addition or subtraction finally you find your answer
Question 2 : 5×5-7+82÷(2×1)+5

Step 1 : do the (2×1) first so
= 5×5-7+82÷2+5

Step 2 : 82÷2
= 5×5-7+41+5

Step 3 :5×5
=25-7+41+5

Step 4 : you can do it using any way now
=25-7+41+5
=18+41+5
=59+5
=64

Final answer : 64


Just remember
1) ( )
2) ÷ / x
3) +/-

Hope I can help you :)