From where digestion of carbohydrates begins

it begins in the mouth

Explanation:

when we chew food, salivary amylase in the saliva starts the breakdown of carbohydrates.

There you go! (＾▽＾)

The digestion of carbohydrates or sugars starts from the Buccal cavity (or mouth) itself because of the salivary amylase secreted by the salivary glands.

There are three pair of salivary glands which release saliva that helps in the partial digestion of carbohydrates. The food is first masticated by the teeth with the help of tongue and slowly digested partially.

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