Ordering decimal numbers

To compare two decimal numbers:

- The number which has the lower whole number portion is the lower number:
           1.23 < 2.1 -3 < 0.25

- If both decimal numbers have the same whole number portion, we equalize the decimal portion using zeros, and then we compare the decimal portion:
                     2.02 < 2.2         because         02 < 20

NOTE: There are always infinite decimal numbers between two decimal numbers:
5.1 < 5.2
5.1 < 5.11 < 5.12 < ……. <5.19 < 5.2

Exercise: Order from lower to greater:

a) 1.01   1.1   1.11   1.12   1.08   1

b) -1.01   -1   -1.1   -1.11   0   -1.2

Solutions:  a) 1<1.01<1.08<1.1<1.11<1.12; b) -1.2<-1.11<-1.1<-1.01<-1<0