Index screen: The user has to click one of them

Task screen-Volume: The user gets to know about the task.

Activity screen: The user must enter the value that has been given in the task.

Activity screen: The user must submit the values as entered.

Activity screen: Once submitted, the Bubbles with check marks come in the corner of the input field for the correct values entered.

Activity screen: The user can get hints if the user needs them.

Task screen: One more task