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Easy Little
HarderMedium
Getting Tough
FeelingLucky?
A number that names a part of a whole or a
part of a group
What is a fraction?
The number below the bar in a fraction
that tells how many equal parts are in the
whole
What is a denominator?
The number above the bar in a fraction that tells how many equal parts of the whole are
being considered
What is a numerator?
Example:
34
What is a numerator?
Example:
34
What is a denominator?
A natural number that is divisible by 2
What is an even number?
A number represented by a
whole number and a fraction
What is a mixed number?
Examples: 16, 24, 100
What are even numbers?
Examples:
What are fractions?
2 ½ 4 ¼
Examples:
What are mixed numbers?
A fraction with a numerator that is greater than the
denominator
What is an improper fraction?
The product of a given whole number and another whole
number
What is a multiple?
25 25 25 x 1 x 2 x 3
25 50 75
Example:
54
What is an improper fraction?
6
5
A whole number greater than 1 whose only factors are 1 and
itself
What is a prime number?
7 1, 7
11 1, 11
Example:
What are multiples?
Fractions that name the same amount
What are equivalent fractions?
A number written as the product of all
its prime factors
What is prime factorization?
80
40 x 2
8 x 5
4 x 2
2 x 2
2 x 2 x 2 x 5 x 2 = 80
A number that is multiplied by another
number to find a product
What is a factor?
4 x 7 = 28 4 and 7 are factors
Example:
What is prime factorization?
The greatest factor that two or more numbers
have in common
What is the greatest common
factor (GCF)?
18: 1, 2, 3, 6, 9, 18
30: 1, 2, 3, 5, 6, 10, 15, 30
6 is the GCF of 18 and 30
The least common multiple of 2 or more
denominators
What is the least common
denominator (LCD)?
A diagram that shows the prime
factors of a number
What is a factor tree?
Example:
What is the least common
denominator?
The smallest number, other than
zero, that is a common multiple of 2 or more numbers
What is the least common multiple
(LCM)?
multiples of 6: 6, 12, 18, 24, 30, 36
multiples of 9: 9, 18, 27, 36, 45, 54
The LCM of 6 and 9 is 18.
Examples:
Number Factors
2 1, 2
3 1, 3
5 1, 5
What are prime
numbers?
7, 13, 41
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