- Since 3 is in the tenths place, 112.324 is between 112.3 and 112.4
- 112.35 is the midpoint between 112.3 (112.30) and 112.4 (112.40)
- As illustrated on the number line, 112.324 is less than the midpoint (112.35)
- Therefore, 112.324 rounded to the nearest tenth (one decimal place) = 112.3
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