7.74+5.6-3.26
=7+0.74+5+0.6-3-0.26
=7+5-3+0.74+0.6-0.26
=9+1.08
=10.087.74+5.6-3.26的简便运算7.74+5.6-3.26 =(8-0.26)+(5+0.6)-(3+0.26) =8-0.26+5+0.6-3-0.26 =8+5-3+0.6-0.26-0.26 =10+0.08 =10.08