“…Indeed, older adults tend to favor the less demanding strategies, even if they are not the best (e.g., Duverne et al, 2003Duverne et al, , 2007Duverne & Lemaire, 2004Gandini et al, 2009;Green et al, 2007;Hodzik & Lemaire, 2011;Lemaire et al, 2004;Fein et al, 2007;Mata et al, 2007Mata & Nunes, 2010). As an example, in estimation calculation tasks, participants can estimate products of two-digit multiplication problems with several strategies.…”