These puzzle sets will help students develop fluency in subtracting within 20. Labels for storage are included.
The sets are : Differences of 12 or less, differences of 15 or less, and differences of 18 or less. This packet is aligned with common core standards for operations and algebraic thinking for grades 1 and 2.
To prepare, print, laminate, and cut out.
Created by Cheryl Litton and Greg Litton of Learning Harbor.
This work is licensed under a Creative Commons Attribution 3.0 Unported License