Adding Integers
16 + -5 + 8 + -4 =
15
- 45+ 37
-8
What is an Integer? Three examples of integers?
A number that are not factions.
-Whole numbers
-Negative numbers
-Opposite
46 degrees below zero
-46
- 52 + (-48)=
-100
-37 +6
-31
What is absolute value?
The distance from Zero (0).
A football team had gains 12 yards on one play then lost 28 yards next. Write a sum of integers to find the overall change in field position.
Show the equation, and answer
Answer: 16
24 - (-13)=
-23 +67 -100=
-56
What are opposite numbers?
Opposite numbers are the same distance from zero
The temperature was 20 F below zero. The temperature drops by 50 F. What is the temperature now?
The group has to have the answer, number line, and equation.
-2 -5 = -7
answer: -7
|23| + 60
83
-1000 +657=
- 343
Integer Rule for Subtraction
Different Sign Subtract
On Monday, Emily withdrew $25. from her savings account. On Tuesday, she withdrew $100, from her savings. On Wednesday, she withdrew $20 from her savings. On Thursday, she deposited $400 dollars into her savings account. How much does Emily have in her savings now?
Show work
answer= $255 dollars in her savings.
| -29| +13=
42
-|23| +5=
-18
Integer Rule for addition
Same sign add
Mark is playing a game. He gains 15 points, loses 12 points, and then gains 17 points. What is his final score?
20