This is a collection of our worksheets on subtracting 2 digit numbers across zeros. It's a good activity to supplement your lesson on double digit subtraction with regrouping. You can use these math sheets as a review, homework, quiz, pre-test, assessment, drill, or practice for your students in the 1st, 2nd, or 3rd grades. *** View our SUBTRACTION Bundle to save and get more activities.The sets included in this packet are as follows. Each set has ten worksheets. Subtraction, Aligned Numbers (1