链接表单：如何访问c＃中的复选框？

I have form1 and form2, on form1 i have a checkbox1, i need to know on form2 that, that checkbox1 is enabled. Please Help! I'm making an arithmethic learning system that has settings on the first form, so if addition is checked(checkbox1), the form 2 will perform addition equations. I have form1 and form2, on form1 i have a check