Posted by lily on Wednesday, January 5, 2011 at 4:28pm.
If you have 2 dollars and give away 2 dollars, you have 0.
However, if you have 2 dollars and owe your mom 3 dollars, you have - 1.
i don't understand
You have 2 dollars >> + 2
You give away your 2 dollars >> - 2
You have no money left >> 0
However, if you have 2 dollars and owe your mom 3 dollars, you'll still owe her 1 dollar >> 2 - 3 = -1
Your answer will be zero. When you have a negative number like that in the beginning, you can make the problem much simpler by changing it. To change the problem, circle each number with the sign directly in front of it. So in this problem, circle the "-2" and the "+2". Now, rearrange these two numbers with their signs so you have "+2" "-2" Take away the circles, and your new problem is +2-2. Since positive 2 is just 2 your problem ends up as 2-2 which = 0
thank you
You're welcome.
Related Questions
Math - Could someone please explain to me how you get answers when you add a ...
algebra - Could someone please help me with this? (1) If x is a nonzero real ...
algebra - ) If x is a nonzero real number, is x–2 always positive, always ...
college algebra - if you have a problem where you are multiplying numbers with ...
7th grade math - 5. Taylor completed the problem below. Describe and correct the...
math help - Thank you for helping me with the last problem Reiny and Bosnian. ...
Algebra - The equation is 5= -z - 3 Why is the answer -8 and not just positive 8...
Algebra Please Help - I have been out of school for a long time and not ...
Precalculus - I hope that the back of the book is wrong the back of the book ...
Algebra - Tell whether the sum is positive, negative, or zero. Explain n is ...
For Further Reading
