content: This product was just how I remembered it when I used it 30 years ago. Yes the answers are hard to see until you press down real hard. But that is how it was 30 years ago and I did not expect anything different. I would recommend this product to anyone trying to teach their kids addition and subtraction.My children look at it like a computer and love playing with it. It gives them instant answers when they press down and they like that satisfaction.