We can easily count up in hundredths like this:
0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 ... etc.
Remember that 20 hundredths (or 0.20) is the same as 2 tenths (0.2).
Look at this diagram, which shows this.
This means that, when we count up in hundredths, we can now write:
0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 ... etc.
Are you ready to have a go at some questions now?