(1)6.8×3.5=23.8;
6.8
× 3.5
.
340
204
.
23.80
(2)3.1×0.47≈1.46;
3.1
× 0.47
.
217
124
.
1.457
(3)0.416÷1.6=0.26;
(4)92.5÷2.3≈40.2;
(5)12.4÷11=1.1
•
2
•
7 .
1.12727
11
12.4
11
.
14
11
.
30
22
.
80
77
.
30
22
.
80
77
.
3
(1)6.8×3.5=23.8;
6.8
× 3.5
.
340
204
.
23.80
(2)3.1×0.47≈1.46;
3.1
× 0.47
.
217
124
.
1.457
(3)0.416÷1.6=0.26;
(4)92.5÷2.3≈40.2;
(5)12.4÷11=1.1
•
2
•
7 .
1.12727
11
12.4
11
.
14
11
.
30
22
.
80
77
.
30
22
.
80
77
.
3