Number 9

12 Aug

9 x 1 = 9

9 x 2 =18 =>1+8=9

9 x 3 =27=>2+7=9

9 x 4 =36=>3+6=9

9 x 5 =45=>4+5=9

9 x 6 =54=>5+4=9

9 x 7 =63=>6+3=9

9 x 8 =72=>7+2=9

9 x 9 =81=>8+1=9

9 x 10 = 90=>9+0=9

Why Indian adopted decimal system(there can be many systems like hexadecimal octal etc) but it was india which adopted the decimal system and gave zero to whole world.

0-9 the system was adopted by india.

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