问题 解答题
能简算要简算
5
9
-
5
9
÷5

3
7
×
1
6
+
3
7
2
5
+
2
3
)÷(
5
6
-
3
4
)×
1
2
33
7
9
×
1
16
答案

(1)5÷

5
9
-
5
9
÷5,

=9-

1
9

=8

8
9

(2)

3
7
×
1
6
+
3
7

=

3
7
×(
1
6
+1),

=

3
7
×
7
6

=

1
2

(3)(

2
5
+
2
3
)÷(
5
6
-
3
4
)×
1
2

=

16
15
÷
1
12
×
1
2

=

64
5
×
1
2

=

32
5

(4)33

7
9
×
1
16

=(32+

16
9
)×
1
16

=32×

1
16
+
16
9
×
1
16

=2+

1
9

=2

1
9

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