# Find The Pattern - 3

**Number Theory**Level 1

\[ \begin{array} { r c c c l c l }

1& \times & 9 & + & 2 & = & 11 \\
12& \times & 9 & + & 3 & = & 111 \\
123& \times & 9 & + & 4 & = & 1111 \\
1234& \times & 9 & + & 5 & = & 11111 \\
12345& \times & 9 & + & 6 & = & 111111 \\
123456& \times & 9 & + & 7 & = & 1111111 \\
1234567& \times & 9 & + & 8 & = & 11111111 \\
12345678& \times & 9 & + & 9 & = & 111111111 \\
\end{array} \]

What is the value of:

\[ 123456789 \times 9 + 10? \]

**Note**: Can you explain what is happening?

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