Here, there are two exercises in a 4/4 time signature and one exercise in a 2/4 time signature. Be careful, as the 2/4 exercise uses the F-clef. Remember the 4/4 and 2/4 hand movement to measure the bars.   

As in the rhythmic reading 1 exercises, first study the scores and practise hand movements to represent the corresponding time signature. Then name the notes aloud while keeping the beat with your hand. It doesn't matter if you start slowly, the idea is that speed is increased with practice.