8.27-1.12+0.15-0.36+1.73+4.85-2.25的简便计算

问题描述:

8.27-1.12+0.15-0.36+1.73+4.85-2.25的简便计算

(8.27+1.73)+(4.85+0.15-2.25)-(1.12+0.36)

8.27-1.12+0.15-0.36+1.73+4.85-2.25
=(8.27+1.73)+(0.15+4.85)+(-1.12-0.36-2.25)
=10+5-3.73
=11.27