Counting On to Add to 20 Boom CardsStudents count on to add (from 10-20). This strategy can be used to supplement math instruction, to practice addition, or for enrichment activities.In this activity, students say the greatest number and continue "counting on" to find the sum. They click the correct sum.*** USE BOOM CARDS ON AN INTERACTIVE WHITEBOARD, WITH TABLETS or LAPTOPS, or EVEN A SMARTPHONE!CAN BE USED WITH GOOGLE CLASSROOM!No PrepSelf-correctingInteractiveContains: 54 BOOM CardsWhat are B