This little math center activity has students subtract 8 or 9 from the teen numbers. **This center Is based on Engage NY A Story of Units Module 2 for first grade. It is designed to reinforce the skills taught in Module 2 lessons, but offers a viable strategy for solving subtraction problems. This center would be helpful to any students who are learning to subtract from teen numbers.
25 subtraction cards and answers
54 snowflake counters
2 cover cards (for use with workmat—use to cover up the unused snowflakes)
Snowflake Subtraction Workmat
(workmat is designed to be slipped into a page protector so students can use a dry erase marker to cross off snowflakes as a subtraction strategy)
Print out on card stock, laminate, and place in an envelope or bag for a center.