Question

como resolver 67+{50×[70:(27+8)+18:2]+21}

Answer 1

67+{50x[70:(27+8)+18:2]+21} 27+8=35 

67+ { 50x[70:35+18:2]+21} 

67+ { 50x [ 2+9]+21} 

67 + { 50x11+21} 50x11=550 

67+ { 550+21} 

67+ 571 

= 638

Answer 2

67+{50x[70:(27+8)+18:2]+21} = 67+{50x[70:35+9]+21} = 67+{50x10+21} = 67+50+21= 117+21= 138