Martha: 2.35 cm
Neil: 2.53 cm
Since both numbers have the same digit in the ones place, 2, look at the place next to the ones. This is called the tenths place.
There is a 3 in the tenths place and 5 in the tenths place. 5 is greater than 3, so Neil had more hair cut off.
2.53 cm is greater than 2.35 cm.