Sistema de numeração indo-arábico

Algarismos:0,1,2,3,4,5,6,7,8,9



bilhão  milhão  milhar  simples

 c d u   c d u     c d u    c d u
                                    3 20






 

• DECOMPOSIÇÃO

  EX       320 => 300 + 20 + 0 
                    ou
                     2
            3 x 10 + 2 x 10   

4235 =>4000 + 200 + 30 + 5
                             ou 
             4 x 1000 + 2 x 100 + 3 x 10 + 5        
                            ou
                     3             2
            4 x 10 + 2 + 10 + 3 x 10 + 3      

34.568 => 30.000 + 4.000 + 500 + 60 +8
                                          ou
                           4            3            2
                  3 x 10 + 4 x 10 + 5 x 10 + 6 x 10 + 8

235.428 => 200.000 + 30.000 + 5.000 + 400 + 20 + 8
                                          ou                                
                             5            4            3            2
                    2 x 10 + 3 x 10 + 5 x 10 + 4 x 10 +2 x 10 + 6

• LEITURA

     EX:
  
         1245 => Mil duzentos e quarenta e cinco