Week of September 28

Math 7
9/28: Multiplying Integers
9/29: Dividing Integers
9/30: Integers Test
10/1: NO SCHOOL
10/2: NO SCHOOL

Pre-Algebra
9/28: Prime Factorization
9/29: Greatest Common Factor using Prime Factorization
9/30: Least Common Multiple using Prime Factorization
10/1: NO SCHOOL
10/2: NO SCHOOL

Students can practice identifying prime numbers at http://www.aaamath.com/g57_prx1.htm#section3

Remember to use your divisibilty rules

Divisibility Tests	Example
A number is divisible by 2 if the last digit is 0, 2, 4, 6 or 8.	168 is divisible by 2 since the last digit is 8.
A number is divisible by 3 if the sum of the digits is divisible by 3.	168 is divisible by 3 since the sum of the digits is 15 (1+6+8=15), and 15 is divisible by 3.
A number is divisible by 4 if the number formed by the last two digits is divisible by 4.	316 is divisible by 4 since 16 is divisible by 4.
A number is divisible by 5 if the last digit is either 0 or 5.	195 is divisible by 5 since the last digit is 5.
A number is divisible by 6 if it is divisible by 2 AND it is divisible by 3.	168 is divisible by 6 since it is divisible by 2 AND it is divisible by 3.
A number is divisible by 8 if the number formed by the last three digits is divisible by 8.	7,120 is divisible by 8 since 120 is divisible by 8.
A number is divisible by 9 if the sum of the digits is divisible by 9.	549 is divisible by 9 since the sum of the digits is 18 (5+4+9=18), and 18 is divisible by 9.
A number is divisible by 10 if the last digit is 0.	1,470 is divisible by 10 since the last digit is 0.