@ARTICLE {31859,
author={R. J. Silva and F. Martins and C.  Costa and J.  Cravino and J. B. Lopes},
doi={10.3390/educsci11120757},
journal={Education Sciences},
title={Learning Scenario to Promote Comprehension of the Meaning of Subtraction},
year={2021},
month={November},
volume={11},
number={12},
pages={757-757},
ISSN={}
}