问题 解答题
计算下面各题.(能简算的要简算)
①36×(
5
9
-
5
12
②56×0.18+18%×44③4-4×(
5
12
+
3
8
④14÷
7
5
×
5
7
⑤3÷
3
4
-
3
4
÷3
⑥(
1
4
+
2
5
)÷
13
15
答案

①36×(

5
9
-
5
12

=36×

5
9
-36×
5
12

=20-15,

=5;

②56×0.18+18%×44

=56×0.18+0.18×44,

=(56+44)×0.18,

=100×0.18,

=18;

③4-4×(

5
12
+
3
8

=4-4×

19
24

=4-3

1
6

=

5
6

④14÷

7
5
×
5
7

=14×

5
7
×
5
7

=7

1
7

⑤3÷

3
4
-
3
4
÷3

=

4
3
-
3
4
×
1
3

=4-

1
4

=3

3
4

⑥(

1
4
+
2
5
)÷
13
15

=

13
20
×
15
13

=

3
4

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问答题 简答题