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怎样简便就怎样算15÷3+45×13 13÷49+13+14 45-23)×252 3-32×1021-27 15÷[(23+15)×113] 24×425 [4-(34-38)]×429 26×42

编辑:chaxungu时间:2026-04-27 14:17:32分类:小学数学题库

怎样简便就怎样算
1
5
÷3+
4
5
×
1
3
1
3
÷
4
9
+
1
3
+
1
4
4
5
-
2
3
)×
25
2
3-
3
2
×
10
21
-
2
7
1
5
÷[(
2
3
+
1
5
)×
1
13
]
24×
4
25
[4-(
3
4
-
3
8
)]×
4
29
26×
4
25
1
7
+
7
8
×
5
7
+
3
8
1
4
+(1-
1
2
-
1
4
(1)
1
5
÷3+
4
5
×
1
3

=
1
5
×
1
3
+
4
5
×
1
3

=(
1
5
+
4
5
)×
1
3

=1×
1
3

=
1
3

(2)
1
3
÷
4
9
+
1
3
+
1
4

=
1
3
×
9
4
+
1
3
+
1
4

=
3
4
+
1
4
+
1
3

=1+
1
3

=1
1
3

(3)(
4
5
-
2
3
25
2

=
4
5
×
25
2
-
2
3
×
25
2

=10-
25
3

=1
2
3

(4)3-
3
2
×
10
21
-
2
7

=3-
5
7
-
2
7

=3-(
5
7
+
2
7
),
=3-1,
=2,
(5)
1
5
÷【(
2
3
+
1
5
)×
1
13
】,
=
1
5
÷【
13
15
×
1
13
】,
=
1
5
÷
1
15

=3,
(6)24×
4
25

=(25-1)×
4
25

=25×
4
25
-1×
4
25

=4-
4
25

=3
21
25

(7)【4-(
3
4
-
3
8
)】×
4
29

=【4-
3
8
】×
4
29

=
29
8
×
4
29

=
1
2

(8)26×
4
25

=(25+1)×
4
25

=25×
4
25
+1×
4
25

=4+
4
25

=4
4
25

(9)
1
7
+
7
8
×
5
7
+
3
8

=
1
7
+(
5
8
+
3
8
),
=
1
7
+1,
=1
1
7

(10)
1
4
+(1-
1
2
-
1
4
),
=
1
4
+
1
4

=
1
2