You can add and subtract integers in three ways.Movement which is using a number line. Temperature which is like using a number line.Money when positive numbers are income and negative numbers are debt.
http://www.mathguide.com/lessons/Integers.html. When you are subtracting integers you can use the KCO method which stands for Keep Change Oppisite. So for example -6-4 you would keep the first number change the sign and change the last number so it would look like this -6+-4.
No comments:
Post a Comment