Please explain why a positive number minus a negative number equals positive and you add it together??? Makes no sense at all.
ex 10-(-3)=13
-5x3
-15
To understand why subtracting a negative number from another positive number yields a positive result, we need to consider the concepts of subtraction and the number line.
When we subtract one number from another, we are essentially finding the difference or distance between the two numbers. The number line is a visual representation of this concept. It is a line with zero in the center, positive numbers to the right, and negative numbers to the left.
Now let's consider your example: 10 - (-3).
To perform this subtraction, we can imagine the number line. We start at 10 and need to move backward by a distance of -3. When we move backward or left on the number line, we encounter negative numbers. So, subtracting a negative number means moving in the opposite direction, which in this case means moving to the right on the number line.
Starting at 10, if we move 3 units to the right (in the positive direction), we arrive at 13. Therefore, 10 - (-3) equals 13.
In summary, subtracting a negative number is equivalent to adding a positive number. It might seem counterintuitive because we expect subtraction to result in a smaller number, but on the number line, subtracting a negative number causes us to move in the positive direction.
This site may help you understand.
http://www.mathsisfun.com/positive-negative-integers.html