it would be 306.5. you'd round the number to the right of the number in the tenths place; if it's lower than 5 (0-4) you'd keep the number in the tenths place the same. however, if the number in the hundredths place (to the right of the tenths palce) is 5-9, you'd round the number up. so 306.46543 would round up to 306.5 because the 6 round up the 4 to a 5. make sense?
round 48.6 to the nearest tenth
Round 3.7416573 to the nearest tenth is 3.7
To the nearest tenth it is 2796.
118.0
It then is 471.4 to the nearest tenth
It is 61.9 to the nearest tenth
It then is 0.7 to the nearest tenth
It is 263.8 to the nearest tenth
4.4, to the nearest tenth.
24.6 Round 24.583 to the nearest tenth? => 24.600
6.3 is the nearest tenth...
It then is 1.5 when rounded to the nearest tenth