Maths Challenge - Complementary addition
Download Complementary addition
Ralph van Dijk and side-kick Matrix have more questions to consolidate mental maths skills and the focus today is Complementary addition.
Published on Thursday, 31st May 2012.
Available Podcasts from Maths Challenge
We are not the BBC, we only list available podcasts. To find out more about the programme including episodes available on BBC iPlayer, go to the Maths Challenge webpage.