Daily Archives: June 5, 2019

DAY/DYDD 156:

The Main Challenge Can you make all four lines work out arithmetically by placing the digits 0-9 into the 16 gaps in our latest Mathelona challenge? ◯  +  ◯   =    10    =   ◯  +  ◯ ◯  +  ◯ … Continue reading

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