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Divisibility Rules
Prime/Composite
Factors
Equivalent Fractions
Simplifying Fractions
100
A number is divisible by 2 if it is ___________.
What is even?
100
The number 20 is ________. (prime or composite)
Composite
100
True or False: 1, 2, 5, and 10 are factors of 10.
True
100
1/3 = ?/12
4
100
Simplify 5/25
1/5
200
A number is divisible by 3 if ____________
What is the sum of it's digits is divisible by 3?
200
The number 5 is ________. (prime/composite)
prime
200
List the factors of 12.
1, 2, 3, 4, 6, and 12.
200
3/5 = 12/?
20
200
8/24
1/3
300
A number is divisible by _____ if it ends with a 5 or 0.
What is five?
300
The prime factorization of 20 is _______________
2 x 2 x 5
300
Name a common factor for 4, 6 and 8.
1 or 2
300
15/35 = ?/7
3
300
14/21
2/3
400
A number is divisible by _____ if it ends in 0.
What is 10?
400
The prime factorization of 40 is __________.
2 x 2 x 2 x 5
400
What is the greatest common factor for 12, 24, and 30?
6
400
?/8 = 4/32
1
400
50/175
2/7
500
A number is divisible by 9 if _________________
What is " the sum of it's digits is divisible by 9"?
500
The prime factorization of 100 is ______________
2 x 2 x 5 x 5
500
What is the greatest common factor for 15 and 52?
1
500
Name an equivalent fraction to 5/25
answer may vary
500
180/222
30/37