1、根号下0.36+根号下0.0121+根号下1.44
=0.6+0.11+1.2
=1.91
2、根号下（-5）的二次方-∣2-根号下5∣-三次根号下-1
=5-(√5-2)-(-1)
=5-√5+2+1
=8-√5
3、根号下3-根号下5+0.154
=1.732-2.236+0.154
=-0.35