Celebrate Martin Luther King Jr. Day with this fun math color number activity! This color by number set encourages students to practice adding and subtracting within 20 and 100 and is suitable for first and second grade students. 
 
Includes: 
2 addition within 20 color by number worksheets
2 subtraction within 20 color by number worksheets
2 addition within 100 color by number worksheets
2 subtraction within 100 color by number worksheets
8 answer keys