Review ASAS : Negation

Let x be any number. Then negation of x is -x

Let x be any number. then the sum of x and its negation is zero

Let x be any number. Then the negation of negation of x is x

Let x and y be numbers. Then $$-x\cdot y=-\left(xy\right)$$

Let x and y $$x\cdot-y=-\left(xy\right)$$ be numbers. Then

Let x and y be numbers. Then $$\left(-x\right)+\left(-y\right)=-\left(x+y\right)$$

Let x and y be numbers. Then $$\left(-x\right)\cdot\left(-y\right)=xy$$

Compute $$-631+\left(114+631\right)=...?$$

(a)  

What is the sum of all of the negative integers that are greater than -5?

(a)  

What is the sum $$\left(-10\right)+\left(-9\right)+\left(-8\right)+ (a) <span class=$$