Answer: To simplify (or make more complicated):
++ =+
+- = -
-+ = -
-- = +
Put things in brackets:
2-1 : (+2)-(+1) operator is -+ or - : 2-1
2+1 : (+2)+(+1) operator is ++ or + : 2+1
2--1 : (+2)-(-1) operator is -- or + : 2+1
2+-1: (+2)+(-1) operator is +- or - : 2-1
Basically if the sign is the same it's +
different and -
Answer: It helps make things clearer if you draw or visualize numbers on a number line. Adding a positive number means going to the right; adding a negative number means going to the left. Subtracing a number is the same as adding its additive inverse; therefore, adding a negative number means going to the left, subtracting a negative number means going to the right.
Yes. A negative subtracted by a negative is a positive. Just remember that two like signs become a positive sign, and two unlike signs become a negative sign.
no, to add and subtract like and unlike fractions the denominator has to be the same,
first find a common denominator then subtract the top numbers
To add integers with unlike signs, first determine the absolute values of both integers. Then, subtract the smaller absolute value from the larger one. The result takes the sign of the integer with the larger absolute value. For example, when adding -3 and 5, you subtract 3 from 5, resulting in 2, which is positive.
You add all the numbers with + signs and subtract all that have minus signs.
No. You can't subtract unlike terms
we can use the number line as a model to help us visualizeadding and subtracting of signed.
Yes. A negative subtracted by a negative is a positive. Just remember that two like signs become a positive sign, and two unlike signs become a negative sign.
no, to add and subtract like and unlike fractions the denominator has to be the same,
Like signs give a positive answer. Unlike signs give a negative answer.
first find a common denominator then subtract the top numbers
You add all the numbers with + signs and subtract all that have minus signs.
Like signs: When both numbers are either positive or negative, like: +6 and +4 Unlike signs; When one is either positive or negative, like he nd lo sn.x
You would have to convert the units to be alike, then you would be able to add and subtract them.
Positive and negative signs are unlike one another.
When you want to add or subtract unlike fractions.
To add and subtract unlike fractions.