You would round 3 to five
You would do this because in math if it is right in the middle or something a little greater you round up!
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If we rounded 3 to the nearest tens, it would be 0. Number 1 Rule: If the number is above 5, round up. 5, 6, 7, 8, and 9 If the number is 4 and below, round down. 4, 3, 2, and 1 Since the number is 3, we have to round down to the nearest ten, which is 0.
3 because if it's above. MYstery .5 you round up
The tenth place in this case is the 2. You look at the number to the right of this which is a 5. If the number is 5 or above you round up if it is below 5 you round down. Since it is a 5 you would round 2 up to a 3. 0.3 is your answer(:
You would round the second digit (3) up by one, and remove the 7 & 5 to leave 30.24
Personally, I have always been taught to round up. (ex. if an answer is 0.5, I usually round it to 1.)