Tenths and hundredths are linked to common fractions. Convert between them with a number expander showing a one as 10 tenths and 100 hundredths also 10 hundredths is 1 tenth. Locate ones, tenths and hundredths on a number line. Represent with base ten blocks cut up. Also there is a counting in hundredths activity. Accompanying worksheets and masters are included. 4 lessons with teacher notes. Interactive PowerPoint Think Bubble Math 402.