22 hundredths is 0.22
To write 42.23 in word form, you would say "forty-two and twenty-three hundredths." This breaks down the number into its whole number part, which is forty-two, and its decimal part, which is twenty-three hundredths. It is important to include the "and" to indicate the separation between the whole number and decimal parts.
Seventy-two hundredths written as a decimal is 0.72
2.40 is the decimal equivalent (two and forty hundredths)
It is twenty two thousand twenty two and two hundredths.
two and four hundredths as decimal = 2.04