additive inverse
the opposite or negative of a number; the sum of a number and its additive inverse is zero
integer
a number belonging to the set made up of the whole numbers and their opposites
irrational number
a number with an infinite decimal representation that does not repeat
natural number
a number belonging to the set made up of the numbers that are used to count: 1, 2, 3, and so on
rational number
a number that can be written as a ratio of two integers in the form A/B with B � 0
whole number
a number belonging to the set made up of zero and the natural numbers
1. integers
2. rational
3. whole
To which of the following sets does the number 0 belong?
always
Whole numbers are ________ integers.
sometimes
Rational numbers are ________ natural numbers.
never
Irrational numbers are ________ integers.
the counting numbers
Choose the answer that best completes the sentence.
Another name for the natural numbers is ________.
-1/2
Which of the following is the additive inverse of 1/2?
sometimes
The product of two irrational numbers is ________ rational.
real numbers
The number line is a graph of the ________.
-8
What number is 7 units to the left of -1?
-8 < 8
Choose the true statement.
-2 > -3
Choose the true statement.
-2/3 > -3/4
Choose the true statement.
-6, -4, -2
___, ___, ___, 0, 2, 4, 6
-1
A graph of the whole numbers is drawn on the number line. Which of the following points is not included on the graph?
0.8 < 5/6 < 12/13
Which of the following shows the correct order of the numbers?
5/6, 12/13, 0.8