The Big Internet Math-Off, Round 1 – James Tanton v Nira Chamberlain | The Aperiodical
http://aperiodical.com/2018/07/the-big-internet-math-off-round-1-james-tanton-v-nira-chamberlain/
Infinite Cake
The Big Internet Math-Off, Round 1 – James Tanton v Nira Chamberlain | The Aperiodical
http://aperiodical.com/2018/07/the-big-internet-math-off-round-1-james-tanton-v-nira-chamberlain/
Mathtuition88 