[Smaller][Bigger] Hundreds are the same. So check the tens. 2 tens are bigger than 1 ten. So 623 is bigger than 617.

3 ones are bigger than 2 ones. So 583 is bigger than 582. [Smaller][Bigger] Hundreds are the same. So check the tens. Tens are the same. So check the ones.

[Smaller][Bigger] 4 tenths are bigger than 2 tenths. So 9.48 is bigger than Units are the same. So check the tenths

3 tenths and 0 hundredths is bigger than 2 tenths and 8 hundredths. So 6.3 is bigger than [Bigger] [Smaller] Units are the same. So check the rest