问题 解答题
脱式计算.(能简算的要简算)
3
4
×
14
15
-
3
4
÷
15
2
16×(
1
8
+
1
4
-
3
16
1
3
÷
5
6
×
9
28
÷
1
14
3
5
÷(
3
4
-
2
3
)×
5
6
答案

(1)

3
4
×
14
15
-
3
4
÷
15
2

=

3
4
×
14
15
-
3
4
×
2
15

=

3
4
×(
14
15
-
2
15
),

=

3
4
×
12
15

=

3
5

(2)16×(

1
8
+
1
4
-
3
16
),

=16×

1
8
+16×
1
4
-16×
3
16

=2+4-3,

=3;

(3)

1
3
÷
5
6
×
9
28
÷
1
14

=

1
3
×
6
5
×
9
28
×14,

=(

1
3
×
6
5
)×(
9
28
×14),

=

2
5
×
9
2

=

9
5

(4)

3
5
÷(
3
4
-
2
3
)×
5
6

=

3
5
÷
1
12
×
5
6

=

36
5
×
5
6

=6.

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