All ACT Math Resources
Example Question #1 : How To Subtract Negative Numbers
What is 1 + (–1) – (–3) + 4 ?
You simplify the expression to be 1 – 1 + 3 + 4 = 7
Example Question #1 : Negative Numbers
Solve the following equation for :
To begin, we need to recall how to subtract negative numbers. Remember, when subtracting a negative number, the two negatives cancel out, creating a positive.
We can combine like terms on the left to get:
Then, we can subtract from both sides in order to get by itself:
In this case, we are subtracting from a negative number, which is just like adding two negative numbers, or subtracting from a positive number. The result will be more negative, because we will be moving further to the left on the number line.
Example Question #2 : Negative Numbers
Compute the following:
Convert all the double signs to a single sign before solving. Remember, two minus (negative) signs combine to form a plus (positive) sign, and a plus (positive) sign and a minus (negative) sign combine to form a minus (negative) sign.