This is a great unit to reinforce the concept of subtraction facts to 20 to first graders. The pack includes essential posters, five printables, and four centers. If you are using Envision Math these centers support Topic 6.
Common Core Standards-1.OA.1 1.OA.4 1.OA.6 1.OA.8
Missing part match
Related facts match
Problem solving cards
Making 10 to subtract
Envision Common Core, Addition, Math Facts, Centers, Posters, Printables, Common Core