Divisibility Rules

1. Divisibility Rules
Simple rules to use to help with division and fair sharing!
CFU:
What are we going to do today?
What are we going to (skill)?

2. Bet you already knew this!
 All even numbers are divisible by two
 All numbers ending with zero are divisible by 10.
CFU (include connection to LO)

3. Vocabulary
 Divisible by: if one counting number can be
divided by a second counting number with a remainder
of 0, then the first number is divisible by the second
number.
 Example: 28 is divisible by 7 because 28 divided by 7 is
4, with no remainder.
 Divisibility test: These rules let you test if one
number is divisible by another, without having to do too
much calculation!


4. Divisibility Rules
 divisible by 1: all numbers
 divisible by 2: all even numbers (end with 0, 2, 4, 6, or 8)
 Divisible by 3: if the sum of its digits is divisible by 3
 Divisible by 5: if it ends with 0 or 5
 Divisible by 6: if it is divisible by both 2 and 3
 Divisible by 9: if the sum is divisible by 9
 Divisible by 10: if it ends with 0

5. Importance
 These rules can make your life easier!!
 They can help you figure out test questions!!
CFU:
Does anyone else have any other reason as to why it is important? Which
reason is most important to you? Why? You can give me my reason or your

6. Skill Development
(steps or processes)
CFU (strategic)

7. Guided Practice
(steps or processes)

8. Closure
(Concept, Skill, Importance-pair-share)

9. Independent Practice