Torbeyns J, Peters G, De Smedt B, Ghesquière P, Verschaffel L. Subtraction by Addition Strategy Use in Children of Varying Mathematical Achievement Level: A Choice/No-Choice Study. JNC [Internet]. 2018Jun.7 [cited 2024May3];4(1):215-34. Available from: https://jnc.psychopen.eu/index.php/jnc/article/view/5795