问题 解答题
怎样算简便就怎样算
7
10
×
1
6
+
3
10
÷6
9
32
÷[
4
3
×(
7
16
-
1
4
)]
24×
5
7
×
7
12
1
5
÷〔(
2
3
+
1
5
)×
1
13
[(
1
2
+
1
3
)÷
5
6
]÷1.2.
答案

(1)

7
10
×
1
6
+
3
10
÷6,

=

7
10
×
1
6
+
3
10
×
1
6

=(

7
10
+
3
10
)×
1
6

=1×

1
6

=

1
6

(2)

9
32
÷[
4
3
×(
7
16
-
1
4
)],

=

9
32
÷[
4
3
×
3
16
],

=

9
32
÷
1
4

=

9
32
×4,

=

9
8

(3)24×

5
7
×
7
12
=10;

(4)

1
5
÷[(
2
3
+
1
5
)×
1
13
],

=

1
5
÷[
13
15
×
1
13
],

=

1
5
÷
1
15

=

1
5
×15,

=3;

(5)[(

1
2
+
1
3
)÷
5
6
]÷1.2,

=[

5
6
÷
5
6
]÷1.2,

=1÷1.2,

=

5
6

选择题
单项选择题