Respostas

2014-05-12T12:47:18-03:00
Errada: 25000000= 2,5x10⁶.

2,5x(10x10x10x10x10x10)=
2,5x(100x100x100)=
2,5x(10000x100)=
2,5x1000000= 2500000
2500000≠25000000

Espero ter ajudado!
1 5 1