How to make an origami cube with a hinged top

(page 3)

3rd picture of origami cube with a hinged top

03.

Valley-fold in half vertically and then unfold.

Prepare to apply a horizontal "gate-fold" and then unfold.

4th picture of origami cube with a hinged top

04.

Apply the horizontal "gate-fold" of the step #3 and then unfold.

Prepare to apply a vertical "gate-fold" and then unfold.