Since there are 10 tenths in a whole, there would be 61 tenths in 6.1
0.6
.61
Three tenths.
46 tenths
There are 6 tenths in 0.6
45 tenths
13.5 is equal to 135 tenths.
There are 9 tenths in 9 tenths.
6.4 of them. 6 and 4 tenths has 64 of them.
69
5 tenths. A fifth is two tenths. So 7 tenths - 2 tenths = 5 tenths
There are 19 tenths