Dara Ó Briain: School of Hard Sums
Alfresco Arithmetic: The Maths of the Great Outdoors
TV-PG
S3 • E5 Apr 1, 2014 45mMathematics minus all the boring bits! Guests Josh Widdicombe and Peter Serafinowicz hope to have the winning formula as they join Dara outdoors for some al fresco arithmetic.

