In mathematics, a

The decimal
multiplication table was traditionally taught as an essential part of
elementary arithmetic around the world, as it lays the foundation for
arithmetic operations with base-ten numbers. Many educators believe it
is necessary to memorize the table up 9 multiply by 9.

**multiplication table**(sometimes, less formally, a**times table**) is a mathematical table used to define a multiplication operation for an algebraic system.^{}^{}

__Number Relation in table 9 :-__
There is a relation between the digits of all numbers in
Multiplication Table of 9

Please see this relation;

**9*1=09 where 0+9=9**

**9*2=18 where 1+8=9**

**9*3=27 where 2+7=9**

**9*4=36 where 3+6=9**

**9*5=45 where 4+5=9**

**9*6=54 where 5+4=9**

**9*7=63 where 6+3=9**

**9*8=72 where 7+2=9**

**9*9=81 where 8+1=9**

**9*10=90 where 9+0=9**

It proves that every number of multiplication table of 9
when added to make a single number then this number is also 9.

This very interesting and very Important for every primary students to know this number relation