(1)54+26=80;(2)3.6-2.8=0.8;(3)
3
5 ×
2
3 =0.4;(4)
1
3 ÷
1
6 =2;
(5)12×
3
4 =9; (6)
7
8 ÷14=
1
16 ; (7)
5
6 -
2
3 =
1
6 ; (8)
1
2 +
1
3 =
5
6 .
故答案依次为:80,0.8,0.4,2,9,
1
16 ,
1
6 ,
5
6 .
(1)54+26=80;(2)3.6-2.8=0.8;(3)
3
5 ×
2
3 =0.4;(4)
1
3 ÷
1
6 =2;
(5)12×
3
4 =9; (6)
7
8 ÷14=
1
16 ; (7)
5
6 -
2
3 =
1
6 ; (8)
1
2 +
1
3 =
5
6 .
故答案依次为:80,0.8,0.4,2,9,
1
16 ,
1
6 ,
5
6 .