-3/4+(-20.125)-6.5+1/8-(-0.75)-5.29+3.1-(-1.8)+(-0.1)-9.87
问题描述:
-3/4+(-20.125)-6.5+1/8-(-0.75)
-5.29+3.1-(-1.8)+(-0.1)-9.87
答
—26.5
答
所有的关键都4!=24 !为阶乘 1.3.4.6 6/3-1=1 4!=24 24*1=24 1.5.5.5 (5-1)!=24 5/5=1 24*1=24 1.6.6.8 (6 6-8)
答
-3/4+(-20.125)-6.5+1/8-(-0.75)=0.75-20.125-6.5+0.125-0.75=(0.75-0.75)+(0.125-20.125)-6.5=0-20-6.5=-26.5-5.29+3.1-(-1.8)+(-0.1)-9.87=-5.29+3.1+1.8-0.1-9.87=-10.36