问题 解答题
用自己喜欢的方法计算.
5
6
-
5
18
)×36
3
4
×32×
5
8
9
20
×
3
7
-
9
20
×
1
7
3-1
5
11
-
6
11
5
6
÷
2
3
÷
5
6
[4-(
3
4
-
3
8
)]×
4
29
答案

(1)(

5
6
-
5
18
)×36,

=

10
18
×36,

=20;

(2)

3
4
×32×
5
8

=

3
4
×4×8×
5
8

=(

3
4
×4)×(8×
5
8
),

=3×5,

=15.

(3)

9
20
×
3
7
-
9
20
×
1
7

=

9
20
×(
3
7
-
1
7
),

=

9
20
×
2
7

=

9
70

(4)3-1

5
11
-
6
11

=3-(1

5
11
+
6
11
),

=3-2,

=1;

(5)

5
6
÷
2
3
÷
5
6

=

5
6
×
3
2
×
6
5

=

3
2

(6)[4-(

3
4
-
3
8
)]×
4
29

=[4-

3
8
4
29

=

29
8
×
4
29

=

1
2

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