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脱式计算.(能简算的要简算)(1)275+450÷18×24(2)1.46+29+371+8.54(3)14÷(3-519-1419)(4)19.9+19.9×99(5)310+(67-12)×725(6)888×9+28×111.

题目详情
脱式计算.(能简算的要简算)
(1)275+450÷18×24     
(2)1.46+29+371+8.54         (3)
1
4
÷(3-
5
19
-
14
19
(4)19.9+19.9×99             (5)
3
10
+(
6
7
-
1
2
)×
7
25
     
(6)888×9+28×111.
脱式计算.(能简算的要简算)
(1)275+450÷18×24     
(2)1.46+29+371+8.54         (3)
1
4
÷(3-
5
19
-
14
19
(4)19.9+19.9×99             (5)
3
10
+(
6
7
-
1
2
)×
7
25
     
(6)888×9+28×111.
脱式计算.(能简算的要简算)
(1)275+450÷18×24      (2)1.46+29+371+8.54         (3)
1
4
÷(3-
5
19
-
14
19
脱式计算.(能简算的要简算)
(1)275+450÷18×24     
(2)1.46+29+371+8.54        (3)
1
4
÷(3-
5
19
-
14
19
1
4
÷(3-
5
19
-
14
19
1
4
1144
5
19
-
14
19
5
19
551919
14
19
14
19
14141919 (4)19.9+19.9×99             (5)
3
10
+(
6
7
-
1
2
)×
7
25
     
(6)888×9+28×111.(4)19.9+19.9×99            (5)
3
10
+(
6
7
-
1
2
)×
7
25
     
3
10
+(
6
7
-
1
2
)×
7
25
     
3
10
331010
6
7
-
1
2
)×
7
25
     
6
7
6677
1
2
)×
7
25
     
1
2
1122
7
25
     
7
25
772525(6)888×9+28×111.
▼优质解答
答案和解析
(1)275+450÷18×24,
=275+25×24,
=275+(25×4)×6,
=275+600,
=875;

(2)1.46+29+371+8.54,
=(1.46+8.54)+(29+371),
=10+400,
=410;

(3)
1
4
÷(3-
5
19
-
14
19
),
=
1
4
÷[3-(
5
19
+
14
19
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
4
111444÷(3-
5
19
-
14
19
),
=
1
4
÷[3-(
5
19
+
14
19
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
5
19
555191919-
14
19
),
=
1
4
÷[3-(
5
19
+
14
19
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
14
19
141414191919),
=
1
4
÷[3-(
5
19
+
14
19
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
4
111444÷[3-(
5
19
+
14
19
)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
5
19
555191919+
14
19
141414191919)],
=
1
4
÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
4
111444÷[3-1],
=
1
4
÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
4
111444÷2,
=
1
8


(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
8
111888;

(4)19.9+19.9×99,
=19.9×(99+1),
=19.9×100,
=1990;

(5)
3
10
+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
3
10
333101010+(
6
7
1
2
)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
6
7
666777−
1
2
111222)×
7
25

=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
7
25
777252525,
=
3
10
+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
3
10
333101010+
6
7
×
7
25
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
6
7
666777×
7
25
777252525
1
2
×
7
25

=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
2
111222×
7
25
777252525,
=
3
10
+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
3
10
333101010+
6
25
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
6
25
666252525
7
50

=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
7
50
777505050,
=
3
10
+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
3
10
333101010+(
12
50
7
50
),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
12
50
121212505050−
7
50
777505050),
=
3
10
+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
3
10
333101010+
1
10

=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
1
10
111101010,
=
2
5


(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.
2
5
222555;

(6)888×9+28×111,
=111×8×9+28×111,
=111×72+28×111,
=111×(72+28),
=111×100,
=11100.