3.79
Look at the hundredth place, see if it's 5 or higher or 4 or lower. Since it is 5 or higher, we round the tenth place up.
3.8
To round 3.79 to the nearest tenth, look at the hundredths digit, which is 9. Since 9 is greater than 5, we round the tenths digit (7) up to 8. Thus, 3.79 rounded to the nearest tenth is 3.8.
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