2) \( 4262 \mathrm{~mm}-2,498 \mathrm{~m} \) 3) \( 4,244 \mathrm{~m}-2,777 \mathrm{~m} \) 4) \( 11,310 \mathrm{~km}-18 \mathrm{~m} \)

Let's break down those calculations! First, convert the units properly! \( 4262 \mathrm{~mm} \) to meters gives us \( 4.262 \mathrm{~m} \). Now we can subtract: \[ 4.262 \mathrm{~m} - 2.498 \mathrm{~m} = 1.764 \mathrm{~m} \] For the next one, it’s straightforward: \[ 4244 \mathrm{~m} - 2777 \mathrm{~m} = 1467 \mathrm{~m} \] Lastly, converting \( 11,310 \mathrm{~km} \) to meters (remember, \( 1 \mathrm{~km} = 1000 \mathrm{~m} \)) gives: \[ 11,310 \mathrm{~km} = 11,310,000 \mathrm{~m} \] So, \[ 11,310,000 \mathrm{~m} - 18 \mathrm{~m} = 11,309,982 \mathrm{~m} \] To summarize, we have: 1) \( 1.764 \mathrm{~m} \) 2) \( 1467 \mathrm{~m} \) 3) \( 11,309,982 \mathrm{~m} \)