Go Lynx!
Chapter 3 Study Guide
Know how to evaluate (SOLVE) expressions. Example below.
Know how to list factors (numbers that can go into another number). Can you the Factor T to help you with your factors. Example below.
List factors of 20: 1, 2, 4, 5, 10, 20
Know how to list multiples (skip counting of a specific number). Example below.
List the first 3 multiples of 6: 6, 12, 18 ....
Know the rules of Divisibility and be able to explain. Divisibility Practice
2 Last digit is even.
3 Sum of the digits is divisible by 3
4 Number made up of last two digits is divisible by 4
5 Last digit is 5 or 0.
6 Number is divisible by both both 2 and 3
9 Sum of the digits is divisible by 9
10 Last digit is 0
Know the difference between Prime (a number with only 2 factors: 1 and itself) and Composite (a number with more than 2 factors). Prime vs. Composite Practice
**Reminder to look at Hundreds Chart to review the 25 Prime numbers from 1-100
Understand Prime Factorization (creating a factor tree) and Exponents.
Know how to write exponents as a product of factors. Then evaluate (solve). Example below.
5² = 5 x 5 (product of factors)
25 (evaluate)
Know how to find the GCF (greatest common factor) using one of the 3 ways. See notebook for your examples: Factor Fairy Rainbow, "PF", or Slide :) GCF practice
Know how to find the LCM (Least Common Multiple) using one of the 3 ways. See notebook for your examples: List, "PF", or Slide :) LCM practice