help me with my Homework??

Question

100 - 97 + 9= ?
How did you do it??
(-3 + 8 - 5) - (-11) =??
How did you do it??

Answer 1

1. Solve 100 - 97 + 9

First: combine the 1st two numbers...

3 + 9

Sec: combine the result with the last number...

= 12

2. Solve (-3 + 8 - 5) - (-11)

First: combine the numbers in the 1st set of parenthesis...

(5 - 5) - (-11)

(0) - (-11)

Sec: eliminate parenthesis --- distribute the outer sign with the term in parenthesis...

0 + 11

= 11

Answer 2

Change it to 100- (-97) + 9= 100-97=3 as the answer takes the sign of the number with the highest absolute value, in this case 100. Then add 9 to the 3. it equals 12. So 100-97+9=12

In the second one add the -3 to the -5 to get -8. then add it to the +8 because these three are together in parentheses. You are left with 0-11which equals -11

Answer 3

100-97=3+9=12
(-3+8-5)-(-11)= 11

Answer 4

Problem 1:

100-97 = 3
3+9 = 12

Your answer is 12.

Problem 2:
Do the parentheses first;
-3+8 = 5
5-5= 0
0-(-11) = 0 + 11= 11

Your answer is 11.

Answer 5

100-97+9=?
(100-97)+9=?
3+9=12

(-3+8-5)-(-11)=?
-3+8-5 actually =0
0 -(-11) (two negatives = positive (think of it as multiplying by a -1)
0 +11 = 11

Answer 6

100- 97= 3
3+9 =12
100-97+9=12

-3+8-5=0
0+11=11

Answer 7

k you do what comes first the subtraction so it would be 100-97=3. 3+9 equals 12
Order of operations
Please excuse my dear aunt Sally

Parentheses
Exponents
Multiplication and Division
Addition and Subtraction