13.9
8.9
5.1
It is: 457.1 rounded to the nearest tenth place because the previous digit was .05
It is 13.4 when rounded to the nearest tenth because the digit 1 is less than 5
20.5
7.6
To round 803.84 to the nearest tenth, look at the digit in hundredth's place. If it is 5 or greater, round the digit in tenth's place to the next higher digit. If the digit in the hundredth's place is less than 5, do not change the digit in tenth's place. 803.84 rounded to the nearest tenth is 803.8.
13.9
8.9
Look at the digit in hundreth's place. If it is 5 or more, round the digit in tenth's place to the next higher digit. If the digit in hundredth's place is less than 5, leave the digit in techth's place what it is. 28.27431 rounded to the nearest tenth is 28.27.
To round 6.875 to the nearest tenth, look at the digit in hundredth's place. If it is 5 or greater, round the digit in tenth's place to the next higher digit. If the digit in the hundredth's place is less than 5, do not change the digit in tenth's place. 6.875 rounded to the nearest tenth is 6.9.
Work backwards from 426. 1000-674 = 426
5.1
400
44.1
It then is 10.6 when rounded to the nearest tenth because the digit 2 is less than 5