Subtracting integers calculator
This subtracting integers calculator will help you to sharpen your skills of subtracting integers.
Note: Use it much until you have mastered the skill
the followings rules should be remembered as you practice:
Subtracting is the same thing as adding the negative.
So, whenever you subtract, rewrite the subtraction sign as + 
Then, all the the rules below still apply when performing operations.
Positive +
Positive =
Positive
Negative +
Negative =
Negative
The sign for
Positive +
Negative or
Negative +
Positive depends on which number is bigger.
Always subtract and keep the sign of the higher number!
For example,
 9 − 4 = 9 + 4 = 13 but
5 −  2 = 5 +  2 = 5 + +2 = 3 (2 negatives = a positive)
Practice makes perfect and enjoy the calculator!

Jul 03, 20 09:51 AM
factoring trinomials (ax^2 + bx + c ) when a is equal to 1 is the goal of this lesson.
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