(1)6×0.3=1.8; (2)0.5÷
1
7 =0.5×7=3.5; (3)
1
4 -
1
5 =
5
20 -
4
20 =
1
20 ; (4)15×0.4=6;
(5)1.6×
3
4 =1.2; (6)12÷
2
3 =12×
3
2 =18; (7)36×
1
4 =9; (8)
5
9 ÷1=
5
9 .
(1)6×0.3=1.8; (2)0.5÷
1
7 =0.5×7=3.5; (3)
1
4 -
1
5 =
5
20 -
4
20 =
1
20 ; (4)15×0.4=6;
(5)1.6×
3
4 =1.2; (6)12÷
2
3 =12×
3
2 =18; (7)36×
1
4 =9; (8)
5
9 ÷1=
5
9 .