Tuyet is in Year 5. She has not heard the "th" sound in the decimal
column names, and therefore sees another whole number to the right
of the decimal point, but mirrored about the ones column. Her judgments
about the size of the decimal number are affected by what she perceives
to be the columns with the largest value, that is, the rightmost
columns. Reverse thinking is one of the longer-is-larger misconceptions.