50 Emotions Missing Addends Worksheets upto Number 20, Addition, Subtraction Activity, Kindergarten, 1st Grade No Prep Math Sub Plans.Has 50 pages for kids to practice their addition and subtraction skills. All answers are between 5 and 20.These sheets may also be useful for tests, revision exercise, sub plans, early finishers, extra work, sponge activity, homework packet and more.