Little Miss Kindergarten - Lessons from the Little Red Schoolhouse!: Subtraction Subtraction a group of numbers rather than one by one.
Also on these boards
Subtraction Strategy Sort-Students sort subtraction flash cards according to the subtraction strategy used to determine the difference. Strategies included are counting back,using doubles, think addition, and making tens.$
Math Coach's Corner: 2-Digit Subtraction with Regrouping-Mini-Lessons & Workstation. My 2nd grade teachers swear by this unit!! If you are apprehensive about teaching subtraction with regrouping, this is the product for you!! Two scripted mini-lesson, reproducible flowchart, instruction on problem solving and they structures of subtraction problems, and a math center activity. $