题目内容

计算:
1
8
×
1
6
+
7
8
÷6
9.6÷0.4÷2.5
(8×
4
9
+8×
5
9
)÷
4
11
.
(1)
1
8
×
1
6
+
7
8
÷6
=
1
8
×
1
6
+
7
8
×
1
6
,
=(
1
8
+
7
8
)×
1
6
,
=1×
1
6
,
=
1
6
;

(2)9.6÷0.4÷2.5
=9.6÷(0.4×2.5),
=9.6÷1,
=9.6;

(3)(8×
4
9
+8×
5
9
)÷
4
11

=[(
4
9
+
5
9
)×8]×
11
4
,
=1×8×
11
4
,
=22.
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