1 crore or 10 million is expanded as

\begin{array}{l}

1\times \text {crores}+0\times \text {ten lakhs }+0 \times \text {lakhs}+0 \times \text {ten thousand}+0 \times \text {thousand}+0\times \text { hundred }+0 \times \text {tens }+0 \times \text {ones } \\

= 1\times 10000000+0\times 1000000+0 \times 100000 +0 \times 10000 +0 \times 1000+0 \times 100+0 \times 10+0 \times one \\

=1,00,00,000\: crores

\end{array}