I created this true or false number sentence color sorting activity for students to practice their basic addition and subtraction facts. If the number sentence is TRUE, they color it one "Halloween" color, and if the number sentence is FALSE, they color it another "Halloween" color. There are 3 worksheets included in this pack--one addition, one subtraction, and one mixed. Great practice for math centers, seatwork, morning work or even homework! Also, please to go my store and check out my Fall True or False Color Sorting Worksheet leveled pack, my Winter and Spring True or False Number Sentence Color Sorts, as well as Winter and Spring True or False cut and paste sorts!