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计算下面各题.能简便的要用简便方法计算. 79÷127÷74 57×6+57 59×38÷536 (34-57)÷156 49-716×49 (0.25+516×125)÷35 513÷7+17×81

编辑:chaxungu时间:2026-04-27 13:18:15分类:小学数学题库

计算下面各题,能简便的要用简便方法计算.
7
9
÷
1
27
÷
7
4
5
7
×6+
5
7
5
9
×
3
8
÷
5
36
(
3
4
-
5
7
)÷
1
56
4
9
-
7
16
×
4
9
(0.25+
5
16
×
12
5
)÷
3
5
5
13
÷7+
1
7
×
8
13
(
1
3
-
1
4
)÷
1
6
+
1
2
.
(1)
7
9
÷
1
27
÷
7
4
,
=
7
9
×27×
4
7
,
=12;

(2)
5
7
×6+
5
7
,
=
5
7
×(6+1),
=
5
7
×7,
=5;

(3)
5
9
×
3
8
÷
5
36
,
=
5
9
×
3
8
×
36
5
,
=
3
2
;

(4)(
3
4
-
5
7
)÷
1
56
,
=(
3
4
-
5
7
)×56,
=
3
4
×56-
5
7
×56,
=42-40,
=2;

(5)
4
9
-
7
16
×
4
9
,
=(1-
7
16
)×
4
9
,
=
9
16
×
4
9
,
=
1
4
;

(6)(0.25+
5
16
×
12
5
)÷
3
5
,
=(
1
4
+
3
4
)×
5
3
,
=1×
5
3
,
=
5
3
;

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

(8)(
1
3
-
1
4
)÷
1
6
+
1
2
,
=
1
12
×6+
1
2
,
=
1
2
+
1
2
,
=1.