22 and 18
If both numbers are positive, simply add them as you learned in 4th grade. If both numbers are negative,simply add them but add a minus to the answer. If one is positive and the other negative, ignoring the signs,subtract the smaller from the larger and add the sign of the larger to your answer.
Make it into an both numbers an improper fraction and then do the opperation.
add to 15 and subtract to 7
By the signs: 2+2(Add) 2-2(Subtract) +=add -=subtract
the difference
its like cookies
the result is always even
I believe it is called the answer. Or sum When you add it is called the sum. When you subtract it is called the difference
You add all the numbers with + signs and subtract all that have minus signs.
You can always do that.
The simplest way is to line up the numbers so that their decimal points are aligned, and corresponding digits are also aligned according to their place value.
The simplest way is to line up the numbers so that their decimal points are aligned, and corresponding digits are also aligned according to their place value.