您现在的位置是:首页 > 学科知识查询 > 小学数学题库

计算下列各题56×1221×715(1+38)×12 5÷511-31154÷34×92522÷(15+16) 917÷8+817÷8.

编辑:chaxungu时间:2026-04-27 13:19:01分类:小学数学题库

计算下列各题
5
6
×
12
21
×
7
15

(1+
3
8
)×12
5÷
5
11
-
3
11

5
4
÷
3
4
×
9
25

22÷(
1
5
+
1
6
)
9
17
÷8+
8
17
÷8.
(1)
5
6
×
12
21
×
7
15
,
=
5
6
×(
12
21
×
7
15
),
=
5
6
×
4
15
,
=
2
9
;

(2)(1+
3
8
)×12,
=1×12+
3
8
×12,
=12+4.5,
=16.5;

(3)5÷
5
11
-
3
11
,
=11-
3
11
,
=10
8
11
;

(4)
5
4
÷
3
4
×
9
25
,
=
5
3
×
9
25
,
=
3
5
;

(5)22÷(
1
5
+
1
6
),
=22÷
11
30
,
=60;

(6)
9
17
÷8+
8
17
÷8,
=(
9
17
+
8
17
)÷8,
=1÷8,
=
1
8
.