1.All Numbers are single digits From Intermediate Contest 2 2016-20172. From Intermediate Contest 2 2017-2018 3.From Intermediate Contest 2 2015-20164. From Intermediate Contest 2 2015-2016
3 4-1=3)
30(27-(-3)=30)
4(1+3=4)
^***s-sa-sb-sc /12