This video explains about carbohydrates classification in chart form.

The term Carbohydrates is most common in biochemistry, where it is a synonym of ‘saccharide’, a group that includes sugars, starch, and cellulose. The saccharides are divided into four chemical groups: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides and disaccharides, the smallest (lower molecular weight) carbohydrates, are commonly referred to as sugars.
Polysaccharides serve for the storage of energy (e.g. starch and glycogen) and as structural components (e.g. cellulose in plants and chitin in arthropods). 

Source: https://en.m.wikipedia.org/wiki/Carbohydrate