What is addition?
slove the expression -4+17
13
Select the integer that best represents the expression (-3)-(-18)
15
Does this situation describe a zero pair?
Leonard earned $2 and then spent $2 at the store
Yes
The temperature at sunrise was -5 degrees. By noon, it had dropped 12 degrees. In the next three hours, it increased 6 degrees. What was the temperature at 3 pm?
-11
Make this expression addition 4-7-5?
4+(-7)+(-5)
Your checking account has a balance of -5 dollars on Monday. If you deposit $5, what is your new balance?
0
What integer best represents the expression 15-36.
-21
Explain what is a zero pair?
When you have a positive and negative pair.
Dee had $500 in her bank account on Sunday. She wrote a $102 check for groceries on Monday. On Tuesday, she went to the ATM machine and took out $30. She got paid on Wednesday and deposited $450. How much is in Dee's account after her deposit?
818
True or False
-78+(-43) is the same as -78-43
True
A football team recevies the ball on their 20 yard line. They make a gain of 15 yards in the first play. On what yard line is the ball?
The ball is on the 35 yard line
What integer best represents the expression (-24)-33
-57
When numbers have the same sign (two positives or two negatives), do we add or subtract? Also, how do you know which sign to take?
You add. You keep the same sign.
Jaime was scuba diving. She was exploring a coral reef at 12 feet below the surface of the water when she saw something shiny. She descended another 7 feet to see if she could find the shiny object before ascending 15 feet to explore another section of the reef. What integer represents Jaime's location from the surface of the water?
-34
Are these expressions equivalent?
4-9
4+(-9)
yes
What integer represents -25-7
-32
A submarine was situated at 800 feet below sea level. If it descends 250 feet, what is the new position?
-1050
When numbers have different signs, what do we do?
(add or subtract)
subtract
Kennedy and Makenzie are discussing how to find the value of -29+63. Kennedy says the value is 34. Makenzie says the value is -34. Who is correct and why?
Kennedy; more positive
simplify and solve
-66-(-76)
10
Write the expression that represents this number line.
-5+(-2)
In the Sahara Desert, one day it was 136. In the Gobi Desert, a temperature of -50 was recorded. What is the difference between these two temperatures?
186
True or false
You do KCC when adding
false
Ms. Ward had $75. She spent 7 dollars on lunch on Monday. Then she put $15 in her gas tank on Tuesday. Finally, on Wednesday, her mom sent her $42. How much does Ms. Ward have after the deposit from her mom?
$95
simplify and solve
-53+84
31