How to determine the average number

All the known numbers can be mentally laid out in a line, this line is called numerical axis. It is located at the ascending of the mathematical values from minus infinity to plus infinity. And if you choose any two points, it is possible to determine by calculation how many will be between them, that is, to determine their average number.

Instruction

First, it follows from these two numbers determine the minimum and maximum comparison. Then from the larger value to take less. Example. You need to determine the average value between the numbers 14 and 76. Seventy-six more than fourteen. The difference between these numbers: 76-14=62, is sixty two.

If is the average value between numbers with different modules (positive and negative), then the difference should be found by the rule of subtracting numbers with different signs: from the larger number to take less and put the answer the sign of the larger number. Example: the difference between the numbers -3 and 6 to find how |6-3|=3 and assign the answer to a plus sign.

Then, the obtained difference is divided by the number of integers among which the need to find the average value. Defined in the above example , the average value is between two numbers, then finding the average value should be found to split the difference, equal to sixty-two by two. It turns out, 62/2=31. Answer: the average between the numbers fourteen and sixty-two is the number thirty-one. It is located on the numeric axis exactly between these values.

Is the advice useful?