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计算下面各题能简便的尽量简便(1)24×(34+56-23)(2)[47×(35-0.25)+310]÷0.5(3)0.374×48+0.62×37.4-3.74 (4)0.125×34+18×8.2

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

计算下面各题能简便的尽量简便
(1)24×(
3
4
+
5
6
-
2
3
)
(2)[
4
7
×(
3
5
-0.25)+
3
10
]÷0.5
(3)0.374×48+0.62×37.4-3.74
(4)0.125×
3
4
+
1
8
×8.25+12.5%
(5)2012÷2012
2012
2013
+
1
2014
.(1)24×(
3
4
+
5
6
-
2
3
),
=24×
3
4
+24×
5
6
-24×
2
3
,
=18+20-16,
=22;

(2)[
4
7
×(
3
5
-0.25)+
3
10
]÷0.5,
=[
4
7
×(
3
5
-
1
4
)+
3
10
],
=
4
7
×(
12
20
-
5
20
)+
3
10
,
=
4
7
×
7
20
+
3
10
,
=
2
10
+
3
10
,
=
1
2
;

(3)0.374×48+0.62×37.4-3.74,
=0.374×48+62×0.374-0.374×10,
=0.374×(48+62-10),
=0.374×100,
=37.4;

(4)0.125×
3
4
+
1
8
×8.25+12.5%
=0.125×0.75+0.125×8.25+0.125,
=0.125×(0.75+8.25+1),
=0.125×10,
=1.25;

(5)2012÷2012
2012
2013
+
1
2014
,
=2012÷
2012×2013+2012
2013
+
1
2014
,
=2012÷
2012×(2013+1)
2013
+
1
2014
,
=2012×
2013
2012×2014
+
1
2014
,
=
2013
2014
+
1
2014
,
=1.