Divisibility Rules
This number divides evenly into all even numbers. What divisibility rule is this?
What is 2.
A number that has exactly two factors; one and itself.
What is a prime number.
What are numbers multiplied together to create a product.
factors.
What is the GCF of 8 and 10
2
22 x3 x5
60
This is an example of which property?
(10 + 8) + 6 = 10 + (8 + 6)
What is the Associative Addition Property?
This number divides evenly into all numbers that end with 5 and 0. What divisibility rule is this?
What is 5.
This number is the only even prime number.
What is 2.
LIST the factors of the number 24. How many factors are there?
1, 2, 3, 4, 6, 8, 12, 24 (There are a total of 8)
Find the LCM for 12 and 15
What is 60.
The prime factorization of 20.
What is 2x2x5? or 22 x 5
This is an example of which property?
14 x 81 = 81 x 14
What is Commutative Multiplication Property?
You do this to a number to decide if the number is divisible by the number 3.
What is find the sum of the digits.
These are the first 5 prime numbers.
What are 2, 3, 5, 7, 11.
List the factors of the number 25. How many are there?
1, 5, 25 There are 3
Paul has 16 fish pictures and 12 deer pictures to display. He wants to arrange the pictures in rows with the same numbers of fish and of deer pictures in each row. What is the largest row Paul can make?
4 rows
23 x 32
What is the prime factorization of 72?
What property states that 4 x 36 =
(4 x 30) + (4 x 6) ?
What is the distributive property?
These are the two numbers that both need to evenly divide into a number to make the number also divisible by 6.
What are 2 and 3.
This number is the only whole number that is neither prime, nor composite.
What is 1.
Use the distributive property to find the equivalent expression by factoring out the GCF.
(42 + 6x) = ___ ( ___ + ___ )
What is 6 (7 + 1x)
Molly does ten sit-ups every 3 hours and fifteen push-ups every 2 hours. She does 10 sit-ups and 15 push-ups at 8am. At what time will she do them both again?
Every 6 hours she will do both, so 2 PM
The prime factorization of 25.
What is 5x5 or 52?
Use the distributive property to find the equivalent expression.
7 (8y + 3) = ____ + ____
What is
56y + 21?
Which of the following numbers divide equally into 342? 2,3,4,5,6,9,10.
What are 2, 3, 6, 9
A number that is greater than 10 and divisible by 5 be prime or composite.
What is composite.
use the distributive property to find the equivalent expression by factoring out the GCF.
(27 + 15x) = ___ ( ___ + ___ )
What is 3 (9 + 5x) ?
Hotdogs are sold in packages of 6. Buns are sold in packages of 8. What is the least number of hotdogs and buns that should be bought to have an equal amount of each?
What is 24?
4 packages of hotdogs 4 x 6 = 24
3 packages of buns 3 x 8 = 24
32x11
What is the prime factorization of 99?
Name the following properties:
71 x 1 = 71
8 x 0 = 0
and 3(2y + 7) = 6y + 21
What is the
identity property,
zero property,
and distributive property?