11.1-3.26-2.64-4.1 7.12-3.7+4.88-2.3 8.1除0.18 10.1*8.6 6.3/（0.7*5） 4.6*2.3+0.54*23 简便运算

11.1-3.26-2.64-4.1=11.1-4.1-(3.26+2.64)=7-6=17.12-3.7+4.88-2.3=7.12+4.88-(3.7+2.3)=12-6=68.1除0.18 =(0.9*9)/(0.9*0.2)=9/0.2=4510.1*8.6=(10+0.1)*8.6=10*8.6+0.1*8.6=86+0.86=86.866.3/（0.7*5）=(9*0.7)/(0...