Adding Integers
-9+17=
8
-8-9=
-17
What's a Sum?
The result of adding two or more numbers.
There were 88 cars in the lot at the North Avenue Car Dealership. Last month, 55 of them were sold. How many cars are left?
33
-76+84=
8
42+(-13)=
29
30-(-18)=
48
What's an Integer?
Whole Numbers, including positive numbers, negative numbers, and zero.
You take 6 steps forward and 8 steps backward. How many steps have you taken?
-2
59+(-94)=
-35
-100+(-254)=
-354
-90-57=
-147
What's a Positive Integer?
Whole numbers greater than zero (e.g., 1, 2, 3...).
Julio bought 80 raffle tickets at his school's fundraiser, He placed one in each raffle bag he saw and had 53 remaining. How many did he give away?
27
-72+(-94)=
-166
-362+210=
-152
200-(-354)=
554
What is a Negative Integer?
Whole numbers less than zero (e.g., -1, -2, -3...).
The temperature in Alaska is -6 degrees today. The weather station has reported that the temperature will drop by 15 degrees overnight. What will the new temperature be?
-21 degrees
87-(-48)=
135
472+(-361)=
111
-493-(-510)=
17
What is Absolute Value
The distance a number is from zero on the number line (always a positive value).
Samantha had 26 cookies and ate 11 of them and then she bought 18 more. How many cookies does Samantha have now?
33 cookies
57+85=
142