Word problems for which the starting number is unknown are the most difficult to comprehend. These 2nd graders, most of whom have speech and language processing delays, struggle to make sense of this problem through conversation and using manipulatives to act out the problem.
"Jordan is selling candy bars to raise money for his basketball team. He has 48 candy bars still at home. He has already sold 32 candy bars. How many candy bars did he have to start with?"