814 Math Blog (2015)

This is my first post about integers. I will be talking about adding and subtracting.



This is what I know about adding and subtracting integers:

• a zero pair is both positive(s) and negative(s)
• when adding a negative and positive, you look for the largest absolute value to see if the answer is negative or positive
• you can use a number line or integer chips to solve the questions
• subtracting negatives, you just add more negative chips since you're just removing, and remove what needs to be removed
• number line; put a starting dot to where you start, make an arrow to the answer, write the question on the arrow, then circle the sum
• -37 + -41 = owe 37 and owe 41= owe 78
• integers scripts: +3 + -2 = +1 [you put 3 positives on your paper. You put two negatives on your paper. Then find your zero pair and circle them. You are left with one positive.]
• absolute value: holds the value of what it is we are talking about.
• 3-7= -4 [ 3 REMOVE 7]
• -9 + +7 = -2 [-9 AND/COMBINE +7]

This is my first post about Integers. I will be talking about Adding and Subtracting.

• Adding negative integer to another negative integer are like adding positive integer to another positive integer but using negative integers.

• Adding positive integer to a negative integer are like subtracting a positive integer to another positive integer but using addition symbol than a subtraction symbol.
• Subtracting a positive integer to a negative integer are like adding a positive integer to another positive integer but using a subtraction symbol than a addition symbol.
• Subtracting a negative to another negative integer are like subtracting a positive integer to a positive integer but using negative integers.