Integer Vocabulary

What is the opposite of -5?

• -5

• 5

Answer explanation

The opposite of a NEGATIVE number is a POSITIVE number.

What is the opposite of 0?

• -0

• 4

• 0

Answer explanation

Zero is its own opposite.

What is the opposite of -(-2)

• 2

• -2

Answer explanation

-(-2) reads "the opposite of negative 2". The opposite of a negative is positive. So -(-2) = 2. Now what is the opposite of that?

7 and -7 are opposite numbers because....

• the numbers are equal to each other.

• they look the same.

• they are both the same distance away from 0.

Answer explanation

Opposite numbers are on opposite sides of zero and they SAME distance away from 0.

Which number(s) are rational?

• -5

• 2.6

• $0.\overline{3}$

• $4\frac{1}{5}$

• $\pi$

Answer explanation

Rational numbers are any number that can be written as a fraction. This list includes:
-integers
-whole numbers
-fractions (proper, improper & mixed)
-decimals that end
-decimals that repeat

Which numbers are rational?

• $7.\overline{6}$

• 2.718......

• $\sqrt{6}$

• -8

• 0

Answer explanation

Rational numbers are numbers that can be written as a fraction. This list includes
-integers
-whole numbers
-fractions (proper, improper & mixed)
-decimals that end
-decimals that repeat

What is the sign of 0?

• Positive

• Negative

• It doesn' t have a sign

Answer explanation

Zero divides the negatives from the positives.

Which numbers are integers?

• 0

• 5.2

• -4

•  $\frac{3}{1}$  

•  $\frac{2}{3}$  

Answer explanation

Integers are positive and negative whole numbers and zero.

Which number is NOT an integer?

• -20

• 5

• -7

• 3.2

 $\left|2\right|$  is read "the absolute value of 2".  To find its value, determine the distance that the number is away from 0.

•  $\left|2\right|=2$  

•  $\left|2\right|=-2$  

•  $\left|2\right|=5$  

•  $\left|2\right|=0$  

Answer explanation

2 is 2 units to the right of 2, so the answer is 2.