Definitions
All the positive and negative whole numbers including the number 0.
Integer
Which is greater -5 or -17
-5
What is the opposite of 3 degrees below zero? Give me the integer with the sign.
+3 or three degrees above zero
|-6| =
6
Order the integers from least to greatest:
0 -3 -4 6 -25 5
-25, -4, -3, 0, 5, 6
a number's distance from 0 on the number line.
Absolute Value
This type of integer is less than zero.
Negative integer
Opposite of +23
-23
-|-3| =
-3
-9 5 -1 9 1 -5
9, 5, 1, -1, -5, -9
Two different numbers that have the same absolute value.
Opposites
Put these integers in order from least to greatest. -6, 0, -1, 3, -17
-17, -6, -1, 0, 3
Which is higher, 5 feet below sea level or 4 feet below sea level? Also, what is that number's opposite?
4 ft below sea level, -4
|2| + |-2| =
4
Order the rational numbers in order from least to greatest:
-1/2 2 -0.25 0.5 -2 3/4
-2, -1/2, -0.25, 0.5, 3/4, 2
Any number that can be written as a fraction, where both the numerator (the top number) and the denominator (the bottom number) are integers, and the denominator is not equal to zero.
Rational Number
What integer describes each situation? A loss of 6 yards? A weight gain of 12 pounds, 15 feet below sea level, Neither positive or negative
-6, +12, -15, 0
What is the opposite of depositing $125.50 into a bank account?
Which rational number represents the opposite?
Withdrawing $125.50 from a bank account.
-125.50
|4| + |-4| + |1| =
9
Order the rational numbers from greatest to least:
-11.25 -12, -1/3 0 5/6 2/3
5/6, 2/3, 0, -1/3, -11.25, -12
Opposite of a number (the fancy phrase)
Additive Inverse
True or false. In addition to negative numbers, integers also include whole numbers.
True
New Orleans is 8 feet below sea level, how many feet would it have to rise to be at sea level?
8 feet
Why is absolute value always positive?
It's a number's distance from zero. Distance can't be negative.
Order the rational numbers from least to greatest:
|-2| |-2.5| -5 |-2/5| |5.5| -2.5
-5, -2.5, |-2/5|, |-2|, |-2.5|, |5.5|