计算下面各题.(能简便的用简便方法) 34÷35+49×37 36×14+65×25%-1÷4 67+59×32+16 1743+2.56

计算下面各题.(能简便的用简便方法) 34÷35+49×37 36×14+65×25%-1÷4 67+59×32+16 1743+2.56-743+7.44.

(1)
3
4
÷
3
5
+
4
9
×
3
7

=
3
4
×
5
3
+
4
9
×
3
7

=
5
4
+
4
21

=
121
84


(2)
6
7
+
5
9
×
3
2
+
1
6

=
6
7
+
5
6
+
1
6

=
6
7
+(
5
6
+
1
6
),
=
6
7
+1,
=1
6
7


(3)36×
1
4
+65×25%-1÷4,
=36×
1
4
+65×
1
4
-
1
4

=(36+65-1)×
1
4

=100×
1
4

=25;

(4)1743+2.56-743+7.44,
=(1743-743)+(2.56+7.44),
=1000+10,
=1010.
温馨提示:答案为网友推荐,仅供参考