Those are called "even numbers".
Also, I guess, "multiples of 2" .
<h3>
Answer: positive</h3>
We're adding a negative to a positive. The sign of number that is larger in magnitude will determine the sign of the answer.
The 4.3 is negative while the 14.5 is positive. The 14.5 is larger than 4.3, so the sign of 14.5 will be the sign of the answer. This is why the final answer is positive.
You can think of (-4.3) + 14.5 as 14.5 + (-4.3) = 14.5 - 4.3 if it helps you see why the answer is positive.
All them would be equal to each other
So, start at 4. You know that he needs to go up floors, so it would be 4 + 9, which is 13.
He is now on the 13th floor. You also know, that he needs to go down 5 floors. So the equation would look like this:
4 + 9 - 5 = ?
so, 13 - 5 is 8.
The meeting is on the 8th floor.
Hope this helps!!
~Kiwi
