Color by Number Code Addition and Subtraction within 10 and 20 Math Coloring Pages Sheets ALL YEAR Bundle - This Color by Number Code bundle includes 50 sets; 25 sets of addition facts and 25 sets of subtraction facts. The 25 themes are: Spring, Summer, Fall, Winter, School, Halloween, Thanksgiving, Zoo, Bugs, Space, Christmas, New Years, Groundhogs Day, Valentines Day, Pond Life, St. Patrick's Day, Weather, Earth Day, Easter, Safari, Ocean, Pirates, Farm, 100th Day of School and Pets. You'll ha