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脱式计算.能简算的要简算.(1)9003-554÷18×27 (2)112+(512+12)÷1124(3)1110÷[56×(37-38)](5)99×425(6)48×(14+16-112)

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

脱式计算,能简算的要简算.
(1)9003-554÷18×27
(2)
1
12
+(
5
12
+
1
2
)÷
11
24

(3)1110÷[56×(
3
7
-
3
8
)]
(4)4.3-(0.6+2.4÷12)
(5)99×
4
25

(6)48×(
1
4
+
1
6
-
1
12
)
(1)9003-554÷18×27,
=9003-
277
9
×27,
=9003-831,
=8172;

(2)
1
12
+(
5
12
+
1
2
)÷
11
24
,
=
1
12
+
11
12
÷
11
24
,
=
1
12
+2,
=2
1
12
;

(3)1110÷[56×(
3
7
-
3
8
)],
=1110÷[56×
3
7
-56×
3
8
],
=1110÷[24-21],
=1110÷3,
=370;

(4)4.3-(0.6+2.4÷12),
=4.3-(0.6+0.2),
=4.3-0.8,
=3.5;

(5)99×
4
25
,
=(100-1)×
4
25
,
=100×
4
25
-1×
4
25
,
=16-
4
25
,
=15
21
25
;

(6)48×(
1
4
+
1
6
-
1
12
),
=48×
1
4
+48×
1
6
-48×
1
12
,
=12+8-4,
=20-4,
=16.