This download includes 4 different activities that requires students to discern when to use addition and/or subtraction strategies for third graders: a standard algorithm fluency Bingo game with six unique bingo cards, a strip diagram and word problem match and solve activity, a 10 question word problem worksheet where students must create a number line to represent the information and solve, and a 10 question task card scavenger hunt. Perfect for stations, small groups, or reteach before testin