Vocabulary
the set of whole numbers and their opposites
What is an integer?
The temperature at 7:00 AM was -3°F. By noon, the temperature increased by 10 degrees. What is the temperature at noon?
7
The four sections of a coordinate plane, divided by the x-axis and y-axis.
What are quadrants?
This is the opposite of -7.
What is 7?
Numbers that are less than 0
What are negative numbers
A submarine is at an elevation of -250 feet below sea level. If it rises 120 feet, what is its new elevation?
What is 130 feet?
The mirror image of a point across an axis
What is the reflection?
This is the absolute value of -12.
What is 12?
Two numbers that are the same distance from zero on a number line but on opposite sides.
What are opposite numbers?
Sarah owes $15 to her friend. If she pays back $8, how much does she still owe?
What is $7?
Numbers greater than zero.
What are positive numbers?
On a number line, this number is located 4 units to the left of zero.
What is -4?
The distance a number is from zero on a number line, without considering the direction.
What is absolute value?
Mark has $20 in his bank account. He writes a check for $35. What is the new balance in his account?
What is -$15?
A line that shows numbers in order, with positive numbers on the right of zero and negative numbers on the left.
What is a number line?
The sum of -3 and -6.
What is -9?
A two-dimensional surface on which points are plotted, with one axis representing positive and negative numbers horizontally (x-axis) and the other vertically (y-axis).
What is the coordinate plane?
A mountain climber is 100 feet below the summit. If she climbs up 60 feet and then climbs down 40 feet, how far is she from the summit now?
What is 80 feet?
any number that can be written in the form a/b where a and b are integers (whole numbers) and b does not equal 0.
What is a rational number?
The result when you subtract -5 from 8.
What is 13?