you need to add together
Add together the lengths of all four sides of the parallelogram, or,add together the lengths of a pair of adjacent sides and then double the result.
When you add eight pints of anything, you get one gallon.
You get an even number
you add them together and divide them by 2
adding one to minus one = zero.
The absolute value of the answer is the difference between the absolute values of the two numbers and the sign associated with it is the same as that of the number with the greater absolute value.
Zero
There is no pair of perfect squares that add up to 64.
you need to add together
Add together the lengths of all four sides of the parallelogram, or,add together the lengths of a pair of adjacent sides and then double the result.
When you add eight pints of anything, you get one gallon.
There is no pair of real numbers or pure imaginary numbers that can do that.The pair that can is the conjugate pair of complex numbers [ 1/2 ± 1/2 sqrt(79) i ] .
They do not naturally mix.
You get an even number
you add them together and divide them by 2
You can add 3 numbers (or any quantity of numbers) and get a sum.