The rules for divisibility focus 3 6 ns 2
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The Rules for Divisibility Focus 3: 6.NS.2 PowerPoint PPT Presentation


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The Rules for Divisibility Focus 3: 6.NS.2. Start on a “Fresh Left” page! Heading for your Math Workbook Page. "Divisible By" means "when you divide one number by another the result is a whole number “ (no remainders!) A number is divisible by……. 2 if…. The last digit is even (0,2,4,6,8 )

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The Rules for Divisibility Focus 3: 6.NS.2

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The rules for divisibility focus 3 6 ns 2

The Rules for DivisibilityFocus 3: 6.NS.2


Start on a fresh left page heading for your math workbook page

Start on a “Fresh Left” page!Heading for your Math Workbook Page

"Divisible By" means "when you divide one number by another the result is a whole number“

(no remainders!)

A number is divisible by……


The rules for divisibility focus 3 6 ns 2

2 if…

  • The last digit is even (0,2,4,6,8)

  • 128Yes129No


The rules for divisibility focus 3 6 ns 2

5 if…

  • The last digit is 0 or 5

  • 175Yes809No


10 if

10 if…

  • The number ends in 0

  • 220Yes221No


The rules for divisibility focus 3 6 ns 2

3 if…

  • The sum of the digits is divisible by 3

  • 381 (3+8+1=12, and 12÷3 = 4) Yes217 (2+1+7=10, and 10÷3 = 3 1/3) No


The rules for divisibility focus 3 6 ns 2

9if…

  • The sum of the digits is divisible by 9

  • 1,629 (1+6+2+9=18, then, 1+8=9) Yes

  • 2,013 (2+0+1+3=6) No


The rules for divisibility focus 3 6 ns 2

6if…

  • The number is divisible by both 2and3

  • 114 (it is even, and1+1+4=6 and 6÷3 = 2) Yes

  • 308 (it is even, but 3+0+8=11 and 11÷3 = 3 2/3) No


The rules for divisibility focus 3 6 ns 2

4if…

  • The last 2 digits are divisible by 4

  • 1312(12÷4=3) Yes7019 (19÷4=4.75) NO


The rules for divisibility focus 3 6 ns 2

8 if…

  • The last three digits are divisible by 8

  • 109816(816÷8=102) Yes

  • 216302(302÷8=37 3/4) No


There s more

There’s more!

  • Not only are there divisibility tests for larger numbers, but there are more tests for the numbers we have shown.

  • Factors Can Be Useful!! (Factors are the numbers you multiply to get another number.)

    When a number is divisible by another number ...

    …then it is also divisible by each of the factors of that number.

  • Example: If a number is divisible by 6, it is also divisible by 2 and 3

  • Example: If a number is divisible by 12, it is also divisible by 2, 3, 4 and 6


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