Math
posted by Joe .
round to the given place
6.64 (tenths)
2.435 (hundredths)
6.753 (ones)
78.456 (tenths)

6.64 = 6.6
2.435 = 2.44
I'll be glad to check your answers for the last two. 
6.750
78.46 
Nope.
Please study this chart and try again.
http://www.mathatube.com/images/placevaluechart.gif 
6.753=7.000
78.456=80.00 
6.753=7.000 << this is right.
The other is wrong. 
80

80 is to the nearest ten  not to the nearest one.
http://www.mathatube.com/images/placevaluechart.gif 
it doed say to the tenths

Ok.
What is 78.456 rounded to the nearest tenths? 
78.50