Who has never happened to you that in the middle of a mathematical problem has seen the calculator as a superhero? This wonderful device has the solution of many problems and many students believe it is a blessing to have it. If you are a person with a good sense of humor, you will like the sarcastic design. Do not forget to have it and add it to your closet if you are a math lover, teacher, accountant, student, nerd or geek. When you use it you will make many laugh.The grand daddy of our collection, this premium T-shirt is as close to perfect as can be. It's optimized for all types of print and will quickly become you favorite T-shirt. Soft and comfortable, durable and thick, this is a definite must-own and a recommended product.