Trick-or-Treating for Sums and Differences is a great way to review and practice solving 2-digit addition and subtraction problems with and without regrouping. The activities included in this pack are aligned with the Common Core Standards for second grade. Students may play as a teacher directed whole group scoot activity or the cards can be used in a math station for additional practice. An answer card is also included for students to check their answers. Students record their answers on their activity page. Once they complete their activity page, students can then solve the word problems. As an extension activity, students can create their own Fall or Halloween themed word problem for a partner to solve.
2nd Grade Common Core Standards
2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.