Questions: Use the diagram in the box to convert the given measurement to the unit indicated. 81 dm to km km (Type an integer or a decimal.)

△ Convert 81 dm to km. ○ Convert decimeters to meters. ☼ \( 81 \, \text{dm} = 8.1 \, \text{m} \). Since \( 1 \, \text{dm} = 0.1 \, \text{m} \), multiplying \( 81 \) by \( 0.1 \) gives \( 8.1 \, \text{m} \). ○ Convert meters to kilometers. ☼ \( 8.1 \, \text{m} = 0.0081 \, \text{km} \). Since \( 1 \, \text{km} = 1000 \, \text{m} \), dividing \( 8.1 \) by \( 1000 \) gives \( 0.0081 \, \text{km} \). ✧ The conversion of 81 dm to km results in \( 0.0081 \, \text{km} \). ☺ The conversion of 81 dm to km results in 0.0081 km.