[(2 x 2 +2:2+6x6:6)+(44:4+4-22:2 + 2)] +99:9x 9+9:9=

[6 000 - 2000):4+23 456:2] -236x12:8=

(32:4+5 x 6+9:3+3):[(36:2+6x 12) - 6x 10-8]=​