: Create a diagonal fold across the center of the paper to transition from the top curve to the bottom base.
If you are putting together a full series of paper numbers, you can find specific step-by-step video guides for each: : Create a diagonal fold across the center
: Some tutorials, like Enjoy Paper, use two square sheets (15cm x 15cm) to assemble a larger, more stable version. : Fold the paper into equal horizontal and
: Use a piece of origami paper, such as a 15cm x 7.5cm rectangle (half of a standard square). like Enjoy Paper
: Fold the paper into equal horizontal and vertical sections (often a 4x8 or similar grid) to establish the "segments" of the number.
: You can find entire Origami Numbers Playlists to help you complete your collection from 0 to 9.