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递等式计算(能简便的要简便).(3618÷18-145)×204.2÷23×17-0.58.375+513-38+21356×37-19÷651118÷[2-(14+56)](2-34×45)÷(112+415)
题目详情
(3618÷18-145)×20 | 4.2÷
| 8.375+
| ||||||||||||||||||
|
| (2-
|
2 |
3 |
1 |
7 |
5 |
13 |
3 |
8 |
2 |
13 |
2 |
3 |
1 |
7 |
2 |
3 |
1 |
7 |
2 |
3 |
1 |
7 |
1 |
7 |
5 |
13 |
3 |
8 |
2 |
13 |
5 |
13 |
3 |
8 |
2 |
13 |
5 |
13 |
3 |
8 |
2 |
13 |
3 |
8 |
2 |
13 |
2 |
13 |
5 |
6 |
6 |
5 |
11 |
18 |
1 |
4 |
5 |
6 |
3 |
4 |
4 |
5 |
1 |
12 |
4 |
15 |
5 |
6 |
6 |
5 |
5 |
6 |
6 |
5 |
5 |
6 |
6 |
5 |
6 |
5 |
11 |
18 |
1 |
4 |
5 |
6 |
11 |
18 |
1 |
4 |
5 |
6 |
11 |
18 |
1 |
4 |
5 |
6 |
1 |
4 |
5 |
6 |
5 |
6 |
3 |
4 |
4 |
5 |
1 |
12 |
4 |
15 |
3 |
4 |
4 |
5 |
1 |
12 |
4 |
15 |
3 |
4 |
4 |
5 |
1 |
12 |
4 |
15 |
4 |
5 |
1 |
12 |
4 |
15 |
1 |
12 |
4 |
15 |
4 |
15 |
▼优质解答
答案和解析
(1)(3618÷18-145)×20,
=(201-145)×20,
=56×20,
=(50+6)×20,
=1000+120,
=1120;
(2)4.2÷
×
-0.5,
=4.2×
×
-0.5,
=0.9-0.5,
=0.4;
(3)8.375+
-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
2 2 23 3 3×
-0.5,
=4.2×
×
-0.5,
=0.9-0.5,
=0.4;
(3)8.375+
-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
1 1 17 7 7-0.5,
=4.2×
×
-0.5,
=0.9-0.5,
=0.4;
(3)8.375+
-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
3 3 32 2 2×
-0.5,
=0.9-0.5,
=0.4;
(3)8.375+
-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
1 1 17 7 7-0.5,
=0.9-0.5,
=0.4;
(3)8.375+
-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 513 13 13-
+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
3 3 38 8 8+
,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
2 2 213 13 13,
=(8.375-
)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
3 3 38 8 8)+(
+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 513 13 13+
),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
2 2 213 13 13),
=(8.375-0.375)+
,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
7 7 713 13 13,
=8+
,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
7 7 713 13 13,
=8
;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
7 7 713 13 13;
(4)
×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6×37-19÷
,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
6 6 65 5 5,
=
×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6×37-19×
,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6,
=
×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6×(37-19),
=
×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6×18,
=15;
(5)
÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
11 11 1118 18 18÷[2-(
+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
1 1 14 4 4+
)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
5 5 56 6 6)],
=
÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
11 11 1118 18 18÷[2-
],
=
÷
,
=
×
,
=
;
(6)(2-
13 13 1312 12 12],
=
÷
,
=
×
,
=
;
(6)(2-
11 11 1118 18 18÷
,
=
×
,
=
;
(6)(2-
11 11 1112 12 12,
=
×
,
=
;
(6)(2-
11 11 1118 18 18×
,
=
;
(6)(2-
12 12 1211 11 11,
=
;
(6)(2-
2 2 23 3 3;
(6)(2-
=(201-145)×20,
=56×20,
=(50+6)×20,
=1000+120,
=1120;
(2)4.2÷
2 |
3 |
1 |
7 |
=4.2×
3 |
2 |
1 |
7 |
=0.9-0.5,
=0.4;
(3)8.375+
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
2 |
3 |
1 |
7 |
=4.2×
3 |
2 |
1 |
7 |
=0.9-0.5,
=0.4;
(3)8.375+
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
1 |
7 |
=4.2×
3 |
2 |
1 |
7 |
=0.9-0.5,
=0.4;
(3)8.375+
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
3 |
2 |
1 |
7 |
=0.9-0.5,
=0.4;
(3)8.375+
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
1 |
7 |
=0.9-0.5,
=0.4;
(3)8.375+
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
13 |
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
3 |
8 |
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
2 |
13 |
=(8.375-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
3 |
8 |
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
13 |
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
2 |
13 |
=(8.375-0.375)+
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
7 |
13 |
=8+
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
7 |
13 |
=8
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
7 |
13 |
(4)
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
6 |
5 |
=
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
=
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
=
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
=15;
(5)
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
11 |
18 |
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
1 |
4 |
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
5 |
6 |
=
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
11 |
18 |
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
13 |
12 |
=
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
11 |
18 |
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
11 |
12 |
=
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
11 |
18 |
12 |
11 |
=
2 |
3 |
(6)(2-
12 |
11 |
=
2 |
3 |
(6)(2-
2 |
3 |
(6)(2-
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