CBSE Class 2 Maths Mental Arithmetic Worksheets ... Maths Worksheets for Class 2 are a perfect combination of fun and learning. Find the most interesting and relevant puzzle activities for your kids here. In the Mathematics Grade 2 Mental Arithmetic Worksheets Puzzles will be in the form of crosswords, true or false, pictures, mazes, fill-ups, MCQs, objectives, questions and answers, and so on.