脱式计算,怎样简便就怎样算① ( 1 2 - 1 4 )÷ 1 3 + 1 6 ② 3 4 ÷ 9 10 - 5 14

脱式计算,怎样简便就怎样算
(
1
2
-
1
4
1
3
+
1
6

3
4
÷
9
10
-
5
14
×
7
15

8
9
×[
3
4
-(
7
16
-
1
4
)]

④102×
98
101

4
5
-
5
9
+
1
5
-
4
9

8
13
÷7+
1
7
×
5
13
txzlhy 1年前 已收到1个回答 举报

j35305 幼苗

共回答了20个问题采纳率:90% 举报

①(
1
2 -
1
4 )÷
1
3 +
1
6 ,
=
1
4 ×3+
1
6 ,
=
9
12 +
2
12 ,
=
11
12 ;


3
4 ÷
9
10 -
5
14 ×
7
15 ,
=
3
4 ×
10
9 -
5
14 ×
7
15 ,
=
5
6 -
1
6 ,
=
2
3 ;


8
9 ×[
3
4 -(
7
16 -
1
4 )] ,
=
8
9 ×[
3
4 -
3
16 ],
=
8
9 ×
9
16 ,
=
1
2 ;

④102×
98
101 ,
=(101+1)×
98
101 ,
=101×
98
101 +1×
98
101 ,
=98+
98
101 ,
=98
98
101 ;


4
5 -
5
9 +
1
5 -
4
9 ,
=(
4
5 +
1
5 )-(
5
9 +
4
9 ),
=1-1,
=0;


8
13 ÷7+
1
7 ×
5
13 ,
=
8
13 ×
1
7 +
1
7 ×
5
13 ,
=
1
7 × (
5
13 +
8
13 ),
=
1
7 ×1 ,
=
1
7 .

1年前

10
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