Vocab
Adding Integers
Subtracting Integers
Mix
Number Lines & Word Problems
100
Absolute Value
The distance of a number from zero
100
-5 + 9
4
100
-4 - 6
-10
100
-2 - 3
-5
100
In Buffalo, New York, the temperature was –14°F in the morning. If the temperature decreased by 7°F, what is the temperature now?
-21 degrees
200
Integer
The set of whole numbers and their opposites.
200
-12 + 5
-7
200
4 - 11
-7
200
-10 + 30
20
200
Write an equation to represent this number line
2 + -4
or
2 - 4
300
additive inverses
the positive and negative value of the same number, sum is equal to zero
300
-16 + (-17)
-33
300
15 - (-7)
22
300
21 - (+5)
16
300
Which two numbers on the number line could be combined to have a sum of zero?
B and E
400
deposit
add money to an account
400
How do you find the sum of numbers with different signs
Subtract and take the sign of the bigger number
400
-27 - (-3)
-24
400
Subtracting a negative is the same thing as...
Adding a positive
400
An architectural drawing of a building shows the elevation of the basement floor to be –12 feet. The elevation of the roof is 32 feet. What is the total distance from the roof to the basement floor?
44 ft
500
withdraw
take money out of an account
500
-16+18+-17
-15
500
-10 - 11 - (-3)
-18
500
-10 + (-2) - 5
-17
500
Alison’s bank balance was $42.67. Her deposits and withdrawals since then can be represented as +$50, -$15, -$21, +16.25, +25. What is Alison’s bank balance now?
$97.92