问题 解答题
计算下面各题,怎样简便就怎样计算.
0.75×
5
11
+
6
11
×
3
4
0.25×4÷0.25×4
1
10
+
1
17
)×13+4÷17
0.6÷
7
13
+
8
7
×
3
5
-60%
50-7.5-1.3-1.2
1
2
-
1
3
+
1
6
)×36.
答案

(1)0.75×

5
11
+
6
11
×
3
4

=0.75×(

5
11
+
6
11
),

=0.75×1,

=0.75;

(2)0.25×4÷0.25×4,

=0.25÷0.25×(4×4),

=1×16,

=16;

(3)(

1
10
+
1
17
)×13+4÷17,

=(

1
10
+
1
17
)×13+
4
17

=

1
10
×13+
1
17
×
13+
4
17

=1

3
10
+(
13
17
+
4
17
),

=1

3
10
+1,

=2

3
10

(4)0.6÷

7
13
+
8
7
×
3
5
-60%,

=0.6×

13
7
+
8
7
×0.6
-0.6,

=0.6×(

13
7
+
8
7
-1),

=0.6×2,

=1.2;

(5)50-7.5-1.3-1.2,

=50-(7.5+1.3+1.2),

=50-10,

=40;

(6)(

1
2
-
1
3
+
1
6
)×36,

=

1
2
×36-
1
3
×
36+
1
6
×
36,

=18-12+6,

=12.

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