72 x 4 9 July 8, 2019 16 32 64 128 72 x 4 90 72 ( 12 x 4 )= 9 72 x 4 х 9 Уравнение 72 x 4 х 9 X 4 72 9 18 32 72 blank x 4 9 72 85 92 x )/ 4 84 72 ÷ 9