Annual Meeting of the American Educational Research Association location:San Francisco, California date:27 April - 1 May 2013
Subtraction problems can be solved by means of various strategies. One of them is subtraction-by-addition (SBA), in which one determines how much needs to be added to the subtrahend to get to the minuend (e.g., 75 â 43 = ? by 43 + ? = 75). Several studies have shown that children hardly report using this strategy. The lack of understanding of the addition/subtraction complement principle (i.e., if a â b = c, then c + b = a) has been put forward as a potential source for this. We conducted a study in which we investigated the relation between childrenâs understanding of the addition/subtraction complement principle and their use of the related SBA strategy.