4th grade algebra
posted by Judy .
7  7  7  7 = ?
12  15  10  8 = ?
3  7  4  2 = ?
11  9  6  6 = ?
6  5  4  2 = ?
8  5  5  5 = ?
12  7  5  4 = ?
13  3  6  1 = ?
16  10  2  3 = ?
8  2  2  2 = ?
I am not understanding how to help figure these problems out? I would greatly appreciate the help so I can teach my son how to get these answers.

You're adding negative numbers. As you've typed the above, all of the first numbers are positive.
7  7  7  7 = 21
12  15  10  8 = 21
Can you do the rest?
This number line may help you.
http://www.mathsisfun.com/numberline.html 
1. 7 7  7 7,
First, Add all numbers with like signs:
7  21,
Subtract the smaller number from the
larger number and use the sign of the
larger number:
7  21 = 14.
2. 12  15  10  8,
12  33 =  21.
3. 3  7  4  2,
3  14 =  11.
All of the remaining problems are similar to the first three. So let's
try one that's a little different:
7 + 7 + 7 + 7 =
Add all numbers with like signs:
7 + 21,
Subtract the smaller number from the larger number and use the sign of the
larger number:
7 + 21 = 14.
6  5 + 8 + 10 =
11 + 18 = 7.
I hope this will help. 
CORRECTION:
3. 3  7  4  2 =
3  13 = 10.
Respond to this Question
Similar Questions

4th grade Algebra
How to solve this problem. 3XY=12 
Algebra 4th grade
Evaluate each expression for x = 3 2x x (3x) + 5  6 
Science 4th grade
Why is it important for 4th graders to learn about animals that live in the ocean? 
4th grade
4th grader asks how to solve 8100/?=90 
4th grade algebra
what is 77777 eguals? 
4th grade algebra
What is 16  10  2  3 = ? What is 8  2  2  2 = ? 
geography
which country is the biggest (mongolia,china,southkorea,north korea,japan? 
Math
There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th? 
4th grade math
In helping my 4th grade grandson last night with his math, he had problems like this 93 * 18. I asked what the asterisk meant and he said the teacher said to "figure it out" 
math 4th grade no algebra
Jen is 26 years younger than her mom. Together, their ages total 50. How old is Jen?