(1)0.04+0.6=0.64,
(2)7-2.7=4.3,
(3)2.4×50=120,
(4)0.56÷0.7=0.8,
(5)19×8=152,
(6)0÷10=0,
(7)3 2-2 2=5,
(8)603×39≈24000,
(9)
2
5 ×1.5=0.6,
(10)
4
9 ÷
2
3 =
2
3 ,
(11)
1
6 +
5
6 =1,
(12)3.8-
4
5 =3.
(1)0.04+0.6=0.64,
(2)7-2.7=4.3,
(3)2.4×50=120,
(4)0.56÷0.7=0.8,
(5)19×8=152,
(6)0÷10=0,
(7)3 2-2 2=5,
(8)603×39≈24000,
(9)
2
5 ×1.5=0.6,
(10)
4
9 ÷
2
3 =
2
3 ,
(11)
1
6 +
5
6 =1,
(12)3.8-
4
5 =3.