Practice writing fractions (tenths and hundredths) as decimals, and comparing decimals.
For tenths, use one decimal place (3/10 = 0.3); for hundredths, use two (62/100 = 0.62).
Cubles kits are geometry in your hands: nets, faces, edges and vertices that fold and click into a poseable 3D character. No scissors, no glue, about 15 minutes.