To estimate how many miles Malcolm has left to drive, we'll round the distances he drove each day to the nearest ten and then calculate the total distance driven and subtract it from the total distance.
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First day distance: 443 miles
- Rounding to the nearest ten: 440 miles
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Second day distance: 409 miles
- Rounding to the nearest ten: 410 miles
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Total distance driven: \[ 440 + 410 = 850 \text{ miles} \]
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Total distance from Wichita to Charleston: 1,323 miles
- Rounding to the nearest ten: 1,320 miles
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Miles left to drive: \[ 1,320 - 850 = 470 \text{ miles} \]
So, estimating, Malcolm has about 470 miles left to drive.