早教吧作业答案频道 -->其他-->
怎样算简便就怎样算.514+718+91414+78−5834−512−112415+59+1115+191314−(914+17).
题目详情
怎样算简便就怎样算.
+
+
+
−
−
−
+
+
+
+
5 5 14 14
7 7 18 18
9 9 14 14
+
−
+
−
1 1 4 4
7 7 8 8
5 5 8 8
−
−
−
−
3 3 4 4
5 5 12 12
1 1 12 12
+
+
+
−(
+
).
+
+
+
+
+
+
4 4 15 15
5 5 9 9
11 11 15 15
1 1 9 9
−(
+
).
−(
+
).
13 13 14 14
9 9 14 14
1 1 7 7
|
|
| ||||||||||||||||||
|
|
|
|
| ||||||||||||||||||
|
|
5 |
14 |
7 |
18 |
9 |
14 |
1 |
4 |
7 |
8 |
5 |
8 |
3 |
4 |
5 |
12 |
1 |
12 |
5 |
14 |
7 |
18 |
9 |
14 |
5 |
14 |
7 |
18 |
9 |
14 |
5 |
14 |
7 |
18 |
9 |
14 |
1 |
4 |
7 |
8 |
5 |
8 |
1 |
4 |
7 |
8 |
5 |
8 |
1 |
4 |
7 |
8 |
5 |
8 |
3 |
4 |
5 |
12 |
1 |
12 |
3 |
4 |
5 |
12 |
1 |
12 |
3 |
4 |
5 |
12 |
1 |
12 |
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
13 |
14 |
9 |
14 |
1 |
7 |
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
13 |
14 |
9 |
14 |
1 |
7 |
13 |
14 |
9 |
14 |
1 |
7 |
13 |
14 |
9 |
14 |
1 |
7 |
▼优质解答
答案和解析
(1)
+
+
=
+
+
=1+
=1
;
(2)
+
−
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
5 5 514 14 14+
7 7 718 18 18+
9 9 914 14 14
=
+
+
=1+
=1
;
(2)
+
−
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
5 5 514 14 14+
9 9 914 14 14+
7 7 718 18 18
=1+
=1
;
(2)
+
−
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
+
7 7 718 18 18
=1
;
(2)
+
−
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
7 7 718 18 18;
(2)
+
−
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 14 4 4+
7 7 78 8 8−
5 5 58 8 8
=
+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 14 4 4+(
−
)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
7 7 78 8 8−
5 5 58 8 8)
=
+
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 14 4 4+
1 1 14 4 4
=
;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 12 2 2;
(3)
−
−
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
3 3 34 4 4−
5 5 512 12 12−
1 1 112 12 12
=
-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
3 3 34 4 4-(
+
)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
5 5 512 12 12+
1 1 112 12 12)
=
-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
3 3 34 4 4-
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 12 2 2
=
;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
1 1 14 4 4;
(4)
+
+
+
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
4 4 415 15 15+
5 5 59 9 9+
11 11 1115 15 15+
1 1 19 9 9
=(
+
)+(
+
)
=1+
=1
;
(5)
−(
4 4 415 15 15+
11 11 1115 15 15)+(
+
)
=1+
=1
;
(5)
−(
5 5 59 9 9+
1 1 19 9 9)
=1+
=1
;
(5)
−(
2 2 23 3 3
=1
;
(5)
−(
2 2 23 3 3;
(5)
−(
13 13 1314 14 14−(
问题解析 问题解析
(1)(4)运用加法交换律和结合律解答;
(2)运用加法结合律解答;
(3)(5)运用减法性质解答. (1)(4)运用加法交换律和结合律解答;
(2)运用加法结合律解答;
(3)(5)运用减法性质解答.名师点评 名师点评
本题考点: 本题考点:
分数的简便计算. 分数的简便计算.
考点点评: 考点点评:
本题主要考查学生正确选择并运用简便方法解决问题的能力. 本题主要考查学生正确选择并运用简便方法解决问题的能力.
var userCity = "\u4e50\u5c71",
userProvince = "\u56db\u5ddd",
zuowenSmall = "0";
5 |
14 |
7 |
18 |
9 |
14 |
=
5 |
14 |
9 |
14 |
7 |
18 |
=1+
7 |
18 |
=1
7 |
18 |
(2)
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
5 |
14 |
7 |
18 |
9 |
14 |
=
5 |
14 |
9 |
14 |
7 |
18 |
=1+
7 |
18 |
=1
7 |
18 |
(2)
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
5 |
14 |
9 |
14 |
7 |
18 |
=1+
7 |
18 |
=1
7 |
18 |
(2)
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
7 |
18 |
=1
7 |
18 |
(2)
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
7 |
18 |
(2)
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
4 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
7 |
8 |
5 |
8 |
=
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
4 |
1 |
4 |
=
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
2 |
(3)
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
3 |
4 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
5 |
12 |
1 |
12 |
=
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
3 |
4 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
2 |
=
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
1 |
4 |
(4)
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
4 |
15 |
5 |
9 |
11 |
15 |
1 |
9 |
=(
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
4 |
15 |
11 |
15 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
5 |
9 |
1 |
9 |
=1+
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
2 |
3 |
=1
2 |
3 |
(5)
13 |
14 |
2 |
3 |
(5)
13 |
14 |
13 |
14 |
作业帮用户
2016-11-17
举报
作业帮用户作业帮用户
2016-11-172016-11-17
举报
举报
- 问题解析
- (1)(4)运用加法交换律和结合律解答;
(2)运用加法结合律解答;
(3)(5)运用减法性质解答.
(2)运用加法结合律解答;
(3)(5)运用减法性质解答.
(2)运用加法结合律解答;
(3)(5)运用减法性质解答.
- 名师点评
-
- 本题考点:
- 分数的简便计算.
-
- 考点点评:
- 本题主要考查学生正确选择并运用简便方法解决问题的能力.
- 本题考点:
- 分数的简便计算.
- 本题考点:
- 分数的简便计算.
- 考点点评:
- 本题主要考查学生正确选择并运用简便方法解决问题的能力.
- 考点点评:
- 本题主要考查学生正确选择并运用简便方法解决问题的能力.
扫描下载二维码
扫描下载二维码
©2019 作业帮 联系方式:service@zuoyebang.com
作业帮协议作业帮协议
看了 怎样算简便就怎样算.514+...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 …
1.8/9×15/36+1/272.12×5/6–2/9×33.7×5/49+3/1414.7×5 2020-04-07 …
脱式计算,能简算的要简算.3又9分之8-18分之7-18分之11= 3又9分之8-(2分之1+9分 2020-05-16 …
1/1×3×5+1/3×5×7+1/5×7×9+1/7×9×11+1/9×11×13+1/上面这题 2020-05-17 …
探索规律:观察下面由※组成的图案和算式,解答问题:1+3=4=221+3+5=9=321+3+5+ 2020-06-27 …
1.0.3:12=2.0.25:4=3.2.8:0.7=4.2.1:1.2=5.0.1:0.8=6 2020-07-17 …
6÷3/8–3/8÷64/7×5/9+3/7×5/95/2-(3/2+4/5)7/8+(1/8+1 2020-07-18 …
计算题:4/7+1/2*8/72/13*12除6/135/6除(2/3-5/12)(5/6+2/3 2020-07-18 …
计算(1)2.5+7.5÷5(2)12.6+4.5÷3-12.7(3)9999×2222+3333 2020-07-24 …
找规律练习题1=1*11+3=4=2*21+3+5=9=3*31+3+5+7=16=4*41+3+5 2021-01-21 …