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下面各题.怎样简算就怎样算.(1)0.25-1115+34-415 (2)6-512÷109-138 (3)15+45÷1675×825 (4)(57-114+56)÷542.

编辑:chaxungu时间:2026-04-27 14:17:53分类:小学数学题库

下面各题,怎样简算就怎样算.
(1)0.25-
11
15
+
3
4
-
4
15

(2)6-
5
12
÷
10
9
-
13
8

(3)
1
5
+
4
5
÷
16
75
×
8
25

(4)(
5
7
-
1
14
+
5
6
5
42
(1)0.25-
11
15
+
3
4
-
4
15

=
1
4
+
3
4
-(
11
15
+
4
15
),
=1-1,
=0;

(2)6-
5
12
÷
10
9
-
13
8

=6-
3
8
-
13
8

=6-(
3
8
+
13
8
),
=6-2,
=4;

(3)
1
5
+
4
5
÷
16
75
×
8
25

=
1
5
+
4
5
÷
16
75
×
8
25

=
1
5
+
15
4
×
8
25

=
1
5
+
6
5

=1
2
5


(4)(
5
7
-
1
14
+
5
6
5
42

=(
5
7
-
1
14
+
5
6
)×
42
5

=
5
7
×
42
5
-
1
14
×
42
5
+
5
6
×
42
5

=6-
3
5
+7
=12
2
5