Teach 2 digit subtraction with regrouping using base 10 blocks with this interactive digital math resource. Use moveable base 10 blocks to practice subtracting with regrouping. Save time with this no prep resource that includes: 30 interactive Google slides, a self-grading Google form, worksheets, a detailed answer key, and more! The following formats are included:★Google Slides Digital Resource 20 interactive slides with base 10 blocksEach slide requires students to model the subtraction proble