早教吧作业答案频道 -->其他-->
计算下面各题.(能简便的要写出主要简便过程)(1)(6.38+5.2÷0.8)÷46(2)(12-9.5)×(8÷12.5)(3)2528-(27+514)(4)411+25+711+35.
题目详情
计算下面各题.(能简便的要写出主要简便过程)
(1)(6.38+5.2÷0.8)÷46
(2)(12-9.5)×(8÷12.5)
(3)
-(
+
)
(4)
+
+
+
.
-(
+
)
(4)
+
+
+
.
25 25 28 28
+
)
(4)
+
+
+
.
2 2 7 7
)
(4)
+
+
+
.
5 5 14 14
+
+
+
.
4 4 11 11
+
+
.
2 2 5 5
+
.
7 7 11 11
.
3 3 5 5
(1)(6.38+5.2÷0.8)÷46
(2)(12-9.5)×(8÷12.5)
(3)
25 |
28 |
2 |
7 |
5 |
14 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
25 |
28 |
2 |
7 |
5 |
14 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
25 |
28 |
2 |
7 |
5 |
14 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
2 |
7 |
5 |
14 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
5 |
14 |
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
2 |
5 |
7 |
11 |
3 |
5 |
7 |
11 |
3 |
5 |
3 |
5 |
▼优质解答
答案和解析
(1)(6.38+5.2÷0.8)÷46
=(6.38+6.5)÷46
=12.88÷46
=0.28;
(2)(12-9.5)×(8÷12.5)
=2.5×0.64
=1.6;
(3)
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
25 25 2528 28 28-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
2 2 27 7 7+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
5 5 514 14 14)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
25 25 2528 28 28-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
9 9 914 14 14
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
1 1 14 4 4;
(4)
+
+
+
=(
+
)+(
+
)
=1+1
=2.
4 4 411 11 11+
+
+
=(
+
)+(
+
)
=1+1
=2.
2 2 25 5 5+
+
=(
+
)+(
+
)
=1+1
=2.
7 7 711 11 11+
=(
+
)+(
+
)
=1+1
=2.
3 3 35 5 5
=(
+
)+(
+
)
=1+1
=2.
4 4 411 11 11+
)+(
+
)
=1+1
=2.
7 7 711 11 11)+(
+
)
=1+1
=2.
2 2 25 5 5+
)
=1+1
=2.
3 3 35 5 5)
=1+1
=2.
=(6.38+6.5)÷46
=12.88÷46
=0.28;
(2)(12-9.5)×(8÷12.5)
=2.5×0.64
=1.6;
(3)
25 |
28 |
2 |
7 |
5 |
14 |
=
25 |
28 |
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
25 |
28 |
2 |
7 |
5 |
14 |
=
25 |
28 |
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
2 |
7 |
5 |
14 |
=
25 |
28 |
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
5 |
14 |
=
25 |
28 |
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
25 |
28 |
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
9 |
14 |
=
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
1 |
4 |
(4)
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
4 |
11 |
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
2 |
5 |
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
7 |
11 |
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
3 |
5 |
=(
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
4 |
11 |
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
7 |
11 |
2 |
5 |
3 |
5 |
=1+1
=2.
2 |
5 |
3 |
5 |
=1+1
=2.
3 |
5 |
=1+1
=2.
看了 计算下面各题.(能简便的要写...的网友还看了以下:
直接写出得数:0.5+0.4=0.90.9;1.4+2.7=4.14.1;8.2+3.7=11.9 2020-04-07 …
分数加减法(带过程)1/7+3/8+5/7=?1-5/9-4/9=?4/11+5/6-4/11=? 2020-04-25 …
问题目:请问3/8-5/7×3/8问题目:请问3/8-5/7×3/8是不是这样:3/8×(1-5/ 2020-05-13 …
问题目:请问3/8-5/7×3/8是不是这样:3/8×(1-5/7)=3/8×2/7=6/56=3 2020-05-13 …
怎么写这些计算题和解方程,记得,1、1/5除于[(1/12+1/6)乘于1/3]2、3.25乘于2 2020-05-13 …
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42 2020-05-15 …
几道计算题,1.(1-3/4-7/8)x(-1/5)=2.(-3又1/3)x(-0.12)x(2又 2020-06-23 …
2^1/2,3^1/3,5^1/4,8^1/5后面的数字是什么?2的1/2次方,3的1/3次方,5 2020-07-04 …
下面各题的计算中,只运用了乘法结合律的是()A.32×O.25×5=5×(32×0.25)B.6×0 2020-11-27 …
几道负数计算题,如题1、(-4.25)×8/9-(1/5-1又2/3)2、(-7)+(-1又2/3) 2021-01-14 …