Looking for a fun interactive digital teaching idea for addition and subtraction of multi-digit numbers? Well bingo! Look no further as this Digital Addition & Subtraction Word Problem Google Form 4th grade Math Scavenger Hunt, for CCSS 4.NBT.4, will serve as an exciting lesson plan for 4th grade elementary school classrooms. This is a great resource to incorporate into your unit as a guided math center rotation, review game exercise, small group work, morning work, remediation, intervention,