\input zb-basic \input zb-matheduc \iteman{ZMATH 2013a.00422} \itemau{Barreras, Miguel} \itemti{Problem solving with Excel. (Resoluci\'on de problemas con Excel.)} \itemso{Uno 18, No. 61, 45-54 (2012).} \itemab Summary: Spreadsheets are very powerful tools for tackling interesting problems that are normally avoided at secondary and baccalaureate level because students do not have enough mathematics knowledge to solve them with pen and pencil. This paper presents ten problems, some complicated and all able to be tackled with a spreadsheet (in this case, Excel). The idea is that once students know how to approach the problem, they can solve it. \itemrv{~} \itemab Resumen: La hoja de c\'alculo es una herramienta muy potente para acceder a problemas interesantes que, normalmente, se evitan en secundaria y bachillerato porque no se dispone del suficiente conocimiento matem\'atico para abordarlos con l\'apiz y papel. Se presentan aqu\'\i diez problemas, algunos complicados, y todos susceptibles de ser tratados con una hoja de c\'alculo (Excel, en este caso). La idea es: si se sabe plantear el problema, se puede resolver. \itemrv{~} \itemcc{D50 U70 M10} \itemut{problem solving; spreadsheets; contexts; innovation; mathematical modelling} \itemli{} \end