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选用适当的方法计算.57+56+27+16115×(13+112)13+3÷1214÷(3-513-813)
题目详情
选用适当的方法计算.
+
+
+
×(
+
)
+3÷
÷(3-
-
)
+
+
+
×(
+
)
+3÷
÷(3-
-
)
5 5 7 7
+
+
×(
+
)
+3÷
÷(3-
-
)
5 5 6 6
+
×(
+
)
+3÷
÷(3-
-
)
2 2 7 7
×(
+
)
+3÷
÷(3-
-
)
1 1 6 6
×(
+
)
+3÷
÷(3-
-
)
1 1 15 15
+
)
+3÷
÷(3-
-
)
1 1 3 3
)
+3÷
÷(3-
-
)
1 1 12 12
+3÷
÷(3-
-
)
1 1 3 3
÷(3-
-
)
1 1 2 2
÷(3-
-
)
1 1 4 4
-
)
5 5 13 13
)
8 8 13 13
5 |
7 |
5 |
6 |
2 |
7 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
5 |
7 |
5 |
6 |
2 |
7 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
5 |
7 |
5 |
6 |
2 |
7 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
5 |
6 |
2 |
7 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
2 |
7 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
6 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
15 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
3 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
12 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
2 |
1 |
4 |
5 |
13 |
8 |
13 |
1 |
4 |
5 |
13 |
8 |
13 |
5 |
13 |
8 |
13 |
8 |
13 |
▼优质解答
答案和解析
(1)
+
+
+
=(
+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 57 7 7+
+
+
=(
+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 56 6 6+
+
=(
+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
2 2 27 7 7+
=(
+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 16 6 6
=(
+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 57 7 7+
)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
2 2 27 7 7)+(
+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 16 6 6+
)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 56 6 6)
=1+1
=2;
(2)
×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 115 15 15×(
+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 13 3 3+
)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 112 12 12)
=
×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 115 15 15×
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 512 12 12
=
;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 136 36 36;
(3)
+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 13 3 3+3÷
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 12 2 2
=
+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 13 3 3+6
=6
;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 13 3 3;
(4)
÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 14 4 4÷(3-
-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 513 13 13-
)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
8 8 813 13 13)
=
÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
1 1 14 4 4÷[3-(
+
)]
=
÷(3-1)
=
÷2
=
.
5 5 513 13 13+
)]
=
÷(3-1)
=
÷2
=
.
8 8 813 13 13)]
=
÷(3-1)
=
÷2
=
.
1 1 14 4 4÷(3-1)
=
÷2
=
.
1 1 14 4 4÷2
=
.
1 1 18 8 8.
5 |
7 |
5 |
6 |
2 |
7 |
1 |
6 |
=(
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
7 |
5 |
6 |
2 |
7 |
1 |
6 |
=(
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
6 |
2 |
7 |
1 |
6 |
=(
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
2 |
7 |
1 |
6 |
=(
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
6 |
=(
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
7 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
2 |
7 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
6 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
6 |
=1+1
=2;
(2)
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
15 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
3 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
12 |
=
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
15 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
12 |
=
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
36 |
(3)
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
3 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
2 |
=
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
3 |
=6
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
3 |
(4)
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
13 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
8 |
13 |
=
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
4 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
5 |
13 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
8 |
13 |
=
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
4 |
=
1 |
4 |
=
1 |
8 |
1 |
4 |
=
1 |
8 |
1 |
8 |
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数学中7*8=56读做8乘7等于56.这狙龆圆欢裕我原以为是错的,因为7*8=56应该读成7乘8等 2020-06-18 …
直接写出得数.5×310=15−17=58÷19×19=34+1.25=47+39=0÷0.88= 2020-07-09 …
共14个数,七组数如何选出不重复的三组数1,2,3,3,4,5,6,7,9,8,10,11,12, 2020-07-10 …
已知函数y=-3x+7(1)当x>2时,求函数值y的取值范围(详解)另外我想知道一下一元一次不等式 2020-08-01 …
为什么蓝色球复式是按顺序6+2=4元,6+3=6元,6+9=18元,6+16=32元;红色球复式7+ 2020-11-07 …
直接写得数.3.86+2.4=7.6-0.56=4.5×102=3.25+2.3+1.75=361+ 2020-11-19 …
求英文翻译(7.1当天按两部分计算:1、按合同每月补贴标准计发当天工资,即2500/22*1.2、当 2020-12-21 …
我现在14岁1米56可以长到1米7吗我初一时1米44,初二1米56,我们班个个都比我高,想长高,都怪 2021-01-12 …