These number sense practice, for both BOOM Learning and Print, challenge 1st and 2nd graders to balance sum and difference equations. They foster problem solving and deductive reasoning in differentiated addition and subtraction number sentences. Students solve for one, two, or three different addends or subtrahends. This BUNDLE is $1.50 more than if purchased individually: Addition & Subtraction Balanced Equations (PRINT Version) Addition & Subtraction Balanced Equations (BOOM Learning Vers