Write the number in decimal notation. \[ 6.5 \times 10^{-1} \] \[ 6.5 \times 10^{-1}= \] (Type an integer or a decimal.)

Step 1 ：Write the number in decimal notation: \(6.5 \times 10^{-1}\)

Step 2 ：\(6.5 \times 10^{-1}\) means that \(6.5\) is multiplied by \(10\) raised to the power of \(-1\).

Step 3 ：To convert this to decimal notation, we need to multiply \(6.5\) by \(10^{-1}\), which is equivalent to dividing \(6.5\) by \(10\).

Step 4 ：So, the decimal notation of \(6.5 \times 10^{-1}\) is \(\boxed{0.65}\)