A few tricks and tips that also tie the two fact families together adds to the students tool kit in order to solve division problems in more ways than one. The Divisibility Rules help us to determine if a number will divide into another number without actually having to divide. 
There is a divisibility rule for every number. However, some of the rules are easier to use than others. Dividing by 3 and 6 OR 2 and 4 OR 5 and 10 are a few of my favorite ones.
Here are the rules for 3 and 6.
The Rule for 3: A number is divisible by 3 if the sum of the digits is divisible by 3. So, if I want to know if 51 can be divided by 3 evenly, adding 5+1=6 and 6 can be divided by 3 without a remainder, so 51 CAN be divided by 3.
The Rule for 6: The prime factors of 6 are 2 and 3. So for a number to be divisible by 6, it must also be divisible by 2 and 3. Quick! Check if it is even and then check if the sum of the digits is divisible by 3. BAM! It can also be divided by 6!
Now, all your students may not be ready for so much at once, and you can certainly spiral back to it later in the year, with anchor charts and your direct morning math lesson. But introduce this for your students that are quick with mental math, and you might just hook them sooner rather than later with such a cool division trick.
Your students will adore these FIVE Career Themed / Community Helpers Color By Numbers divide by three and six worksheets while learning and reviewing important skills at the same time! You will love the no prep, print and go Career Themed / Community Helpers Color Your Answers Worksheets for division of 3 and 6 with Answer Keys Included.
This math resource includes:
* Five Divide by 3 and 6 Pages
* Five Answer Keys
Terrific for an Emergency Sub Tub or Homework!
Have a wonderful week friends!
Follow me on TpT :)
The post Community Helper Themed Divide by 3 and 6 Color By Numbers Printables appeared first on Fern Smith's Classroom Ideas.
Here are the rules for 3 and 6.
The Rule for 3: A number is divisible by 3 if the sum of the digits is divisible by 3. So, if I want to know if 51 can be divided by 3 evenly, adding 5+1=6 and 6 can be divided by 3 without a remainder, so 51 CAN be divided by 3.
The Rule for 6: The prime factors of 6 are 2 and 3. So for a number to be divisible by 6, it must also be divisible by 2 and 3. Quick! Check if it is even and then check if the sum of the digits is divisible by 3. BAM! It can also be divided by 6!
I have a few items in my store that can help you introduce dividing by 3, dividing by 6 and learning to divide by both at the same time. These resources are also terrific for homework, math rotations, seat work and math center time.
This math resource includes:
* Five Divide by 3 and 6 Pages
* Five Answer Keys
Terrific for an Emergency Sub Tub or Homework!
More Resources Available for Dividing by 3 and 6
UK Colour By Numbers are available too!
Tonight's Joke for Tomorrow's Students
How can you spot a jealous shamrock?
Answer: It’s green with envy!
How can you spot a jealous shamrock?
Answer: It’s green with envy!
Have a wonderful week friends!
Follow me on TpT :)
The post Community Helper Themed Divide by 3 and 6 Color By Numbers Printables appeared first on Fern Smith's Classroom Ideas.
See ya' tomorrow,
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