Real numbers
Whole Numbers
(like 0, 1, 2, 3, 4, etc)
Rational Numbers
(like 3/4, 0.125, 0.333..., 1.1, etc )
Irrational Numbers
(like π, √3, etc )
Real numbers
All numbers on the number line. This includes (but is not limited to) positives and negatives, integers and rational numbers, square roots, cube roots , π (pi), etc.
Infinity
NOT a Real Number
All integers are rational numbers. a) True b) False
a
Another name for natural numbers is counting numbers. a) True b) False
a
Some fractions can be reduced to integers a) True b) False
a
The number 1.343443444... is which of the following a) Irrational b) Rational c) Integer d) Whole e) Natural
a
Which number is rational? a) 3/2 b) √2 c) π d) -√13 e) 1.232332333...
a
π (pi) is which of the following a) Irrational b) Irrational and Integer c) Rational d) Rational and Integer e) Rational and Irrational
a
The number 1.34343434... is which of the following? a) Irrational b) Rational c) Rational and Integer d) Rational, Integer, and Whole e) Rational, Integer, Whole, and Natural
b
What is the smallest natural number a) -1 b) 1 c) 0 d) 0.5 e) -0.5
b
Which number is a repeating decimal? a) √144 b) 1.626262... c) 9.089 d) 3/2 e) √5
b
Which number is not an integer? a) √81 b) 4.3333... c) -2 d) 0 e) 7/1
b
Which number is rational, an integer, a whole number, and a natural number? a) 0.17 b) 36/12 c) 0 d) 3/4 e) -2
b
________ can be expressed as fractions, decimals that terminate or repeat, or integers. a) Irrational Numbers b) Rational Numbers c) Integers d) Whole Numbers e) Natural Numbers
b
The symbol used to represent the set of rational numbers is _____. a) R b) W c) Q d) Z e) I
c
What is the smallest whole number? a) -1 b) 1 c) 0 d) 0.5 e) -0.5
c
What number is the only whole number that is not a natural number a) -1 b) 1 c) 0 d) 1/2 e) √2
c
Which number is a terminating decimal? a) -1/6 b) 1.626262... c) 9.089 d) 1/3 e) √5
c
Which number is not whole? a) 0 b) √49 c) -1 d) 121/11 e) 36.0
c
The number -4 belongs to which set(s) a) Rational Numbers b) Integer c) Whole Numbers d) Rational and Integer e) Rational, Integer, and Whole Numbers
d
The symbol used to represent the set of integers is _____. a) R b) W c) Q d) Z e) I
d
When is a fraction irrational? a) When it is a mixed number b) When it is improper c) When it is negative d) Never e) Always
d
The number √16 is which of the following? a) Rational b) Integer c) Whole d) Natural e) All of the above
e
When is a number both rational and irrational? a) when it is a mixed number b) when it is a decimal c) when it is negative d) when it is an improper fraction e) never
e
Which number is a non-terminating/non-repeating decimal? a) √144 b) 1.626262... c) 9.089 d) 3/2 e) √5
e
Which number is an integer? a) √4 b) 9.5 c) 0 d) 3/2 e) Both a and c
e
Which number is not rational? a) 4 b) 0.3 c) 6.171717... d) 2/3 e) √3
e
Imaginary Numbers
like √−1 (the square root of minus 1) NOT Real Numbers
