26-(14-8)= 26-(6) = 2040-(13+7)= 40-20 = 2035-(13-9)= 35-4 = 3160-(28+2)= 60-30 = 30100-8= 92100-18= 82
26-(14-8)= 26-(6) = 20
40-(13+7)= 40-20 = 20
35-(13-9)= 35-4 = 31
60-(28+2)= 60-30 = 30
100-8= 92
100-18= 82