题目内容

能简算的要简算.
17×
9
16
3
4
+
5
8
)×32
5
9
×
3
4
+
5
9
×
1
4
5
4
×
1
8
×16
1
5
+
2
9
×
3
10
44-72×
5
12

(1)17×
9
16

=(1+16)×
9
16

=
9
16
+16×
9
16

=
9
16
+9,
=9
9
16


(7)(
3
4
+
5
8
)×37,
=
3
4
×37+
5
8
×37,
=74+71,
=44;

(3)
5
9
×
3
4
+
5
9
×
1
4

=
5
9
×(
3
4
+
1
4
),
=
5
9
×1,
=
5
9


(4)
5
4
×
1
8
×16,
=
5
4
×(
1
8
×16),
=
5
4
×7,
=
5
7


(5)
1
5
+
7
9
×
3
11

=
1
5
+
1
15

=
4
15


(6)44-77×
5
17

=44-31,
=14.
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