22:39:56
(2+2)+(9+3)+(6-5)
97164c two seventeens that meet in the middle.
(9+1)+7 then (6+4)+(4+c) is the second. What to do with the nine remainder. 9 seventeen combinations. Muh common core maths
Correction
22:39:56
(2+2)+(9+3)+(6-5)
97164c two seventeens that meet in the middle.
(9+1)+7 then (6+4)+(4+c) is the second. What to do with the nine remainder. 9 seventeen combinations. Muh common core maths
Correction