One million, three hundred and two thousand, six hundred and seventy.

1,302,670 =

1,000,000 + 300,000 + 2,000 + 600 + 70 =

1*10^6 + 3*10^5 + 0*10^4 + 2*10^3 + 6*10^2 + 7*10^1 + 0*10^0

The idea of "expanded form" is to get you to recognize and/or think about the place values of the digits that make up the number.

1,000,000 + 300,000 + 2,000 + 600 + 70 =

1*10^6 + 3*10^5 + 0*10^4 + 2*10^3 + 6*10^2 + 7*10^1 + 0*10^0

The idea of "expanded form" is to get you to recognize and/or think about the place values of the digits that make up the number.