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/number-line.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.
To solve the given problems, you need to understand the concept of subtraction. Subtraction is the process of taking one number away from another to find the difference.
Let's take the first problem as an example: 7 - 7 - 7 - 7 = ?
To solve this, you can perform the subtraction in a sequential manner, from left to right.
Step 1: Start with the first number 7 and subtract the second number 7: 7 - 7 = 0.
Step 2: Take the result of the previous subtraction (0) and subtract the next number 7: 0 - 7 = -7.
Step 3: Again, take the result of the previous subtraction (-7) and subtract the final number 7: -7 - 7 = -14.
Therefore, the answer to the first problem 7 - 7 - 7 - 7 is -14.
You can follow the same approach to solve the remaining problems one by one.