Showing posts with label divisibility rules. Show all posts
Showing posts with label divisibility rules. Show all posts

Wednesday, February 23, 2011

Divisibility Rules

Divisibility Rules

Carroll Diagram- Is a table used to show how number are the same and different.



Another diagram is Venn Diagram. A Venn Diagram shows relationships between groups of number.






Common Factor
-A number that two or more number are divisible by.

eg. 4 is a common factor of 8 and 12.

Find the factors of 24.
- 1, 2,4, 8.
1 x 24 = 24 , 2 x 12 = 24, 4 x 6 =24, 8 x3 =24.
Find the factors of 32.
1, 2, 4, 8,
1 x 32 = 32 , 2 x 16 = 32, 4 x 8 =32, 8 x 3 =32.
Find the common factors of 24 and 32
- is 8.
8 x 3 =24, 8 x 4 =32.