Answer :
nearest tenth:243.9 it goes up because the number after is bigger than 5
nearest hundredth:243.88 it gets rounded up because the number after is 5
(you round up when the number after is 5 or bigger it stays the same when less than 5)
so if you round to the nearest tenth it equals 243.88
and for the nearest hundred it equals 243.9
and for the nearest hundred it equals 243.9