Answer :

I'm going to give u an example the number is 2.92 if you round to the nearest tenth it will be 2.9. here's more examples.

6.84 =6.8
8.58= 8.6
3.75 = 3.8
If decimal is 0.05000000 . . (zeros to infinity) . . or greater, round up to 0.10 If the decimal is 0.0499999999 . . (9's to infinity) . . or less, round down to 0.00