Adding Integers
7 + (-4) = ?
3
3 - 12
-9
Janie has $12. She gives her friend Joe $5 to buy ice cream. How much does Janie have after giving Joe money for ice cream?
$7
distance from zero
Absolute Value
A submarine was 1,258ft below sea level. If it ascends 251ft, what is its new position?
-1007ft
15 + (-3) = ?
12
12 - 22
-10
Sarah wants to build a lemonade stand. She doesn't have any money, so she asks her brother for $21 to buy her supplies. Once she opens her lemonade stand, she makes $67. What is her profit?
$46
a number added to it's opposite and has a sum of zero
Additive Inverse
Maggie owes the candy store $42. Seven friends said they will pay off her debt. How much will each friend pay?
$6
25 + (-15) = ?
10
42 - 58
-16
On Friday, Terry had $27 in his bank account. On Saturday, he went to the arcade and went to lunch with a friend. On Monday, Terry's balance was -$32. How much did Terry spend on Saturday?
$59
Distance can be negative. T/F
False
In Waycross, GA the temperature was 82°F at 9:00am. At noon, the temperature increased to 88°F. By 9:00pm, the temperature dropped to 77°F. What is the change of the temperature from 9:00am to 9:00pm?
5 degrees
45 + (-58) = ?
-13
98 - 123
-25
Alex spent $75 at Kroger on Monday. On Tuesday, he spent $26 on dinner at Applebees. On Wednesday, Alex spent $53 at Hibbetts for some workout clothes. On Thursday, his balance was $49. What was his account balance at the beginning of the week?
$203
Negative numbers are shown on the right side of a number line. T/F
False
Lilly bought 6 pairs of blue jeans at $42 each. The cashier gave her 50% off of her total purchase. How much money did she pay?
$126
163 + (-58) = ?
105
238 - 352
-114
Harrison bought pizza for him and his 8 friends who said they would split the cost with him. He spent $54 on pizza. How much does each friend owe Harrison?
$6
When subtracting integers, the rule is to "add the opposite" T/F
True
An elevator is on the twentieth floor. It goes down 12 floors and then up 5 floors. What floor is the elevator on now?
13th floor