小学毕业好多年了,是不是8+5*（7+6）=这样的?要小数的小数像1.1这样的带小数点的叫小数8.5+(3.4+6.6)=这样吗？2.1+(3.7+4.2)+(5.4+3.5)=3.4+[3.7-(2.1+1)]=1.6+3*2+(5-2)=2.2-(3*2-4.1)=(19.7+2)*10=4.5+(6+10-17.5)=32.73+(9-6)+(0.9-0.6)=6.6-(5.5-4.5)+(7.5-6)=4.95+(6.7+3.3)=0.63+18.9+2.37+5.91=0.1+0.2+0.3+0.4+.....+0.9=40-13.64-5.86=18.86-3.47-0.53=7.8+0.2-7.8+0.2=23.4-0.8-13.4-7.2=16.13+8.92-6.13=4.25-0.83+0.75-1.17=5.93+0.16+2.81=1.806-(0.41+0.806)=(1.56+394)+(3.44+106)=84.64-54.8-25.2=2-0.87-0.13-0.12=48.6-(8.6-1.28)=4.02-3.5+0.98=4.9+0.1-4.9+0.1=6.7+4.95+3.3=(1.38+1.75)+0.25=3.35+4.78+3.65=2.74+0.83+1.17+0.26=2.5+3.2-(0.8-0.72)=0.24+0.75-(9.8-6.8)=0.52+1.2+0.79-0.6=0.608+9.72-8.84+0.905=9.72-8.84+12.46-5.87=0.1+0.2+0.3+7.9=19.89-(5.73-4.27)=42.54-(25.4+10.03)=12.08-(2.08-1.49)=(2.84-1.06)+1.6=125*(10+8)=呼~不容易啊~~~~(>_<)~~~~ 记得要采纳啊！！！！！