1-8.4*3+2.5=27.7 2-(19.2+7.6)-(19.2-7.6)=15.2 3-(7.5+2.6)*50=505 4-30.4*3+2.6=93.8 5-(9.3-8.7)*2=1.2 6-(2.5-1.3)*2.5*1.3=3.9 7-(9.8-2.6)/3=2.4 8-(38.4-2.9)/4=8.875 9-(8.43+7.27)/5=3.14
