初中有理数试题
\u521d\u4e2d\u6709\u7406\u6570\u5224\u65ad\u9898\u3001\u586b\u7a7a\u9898\u3001\u9009\u62e9\u9898\u3001\u5e94\u7528\u9898\u540420\u9053\u4e00 \u586b\u7a7a\u9898
1\uff0e-(- )\u7684\u5012\u6570\u662f_________\uff0c\u76f8\u53cd\u6570\u662f__________\uff0c\u7edd\u5bf9\u503c\u662f__________\u3002
2\uff0e\u82e5|x|+|y|=0\uff0c\u5219x=__________\uff0cy=__________\u3002
3\uff0e\u82e5|a|=|b|\uff0c\u5219a\u4e0eb__________\u3002
4\uff0e\u56e0\u4e3a\u5230\u70b92\u548c\u70b96\u8ddd\u79bb\u76f8\u7b49\u7684\u70b9\u8868\u793a\u7684\u6570\u662f4\uff0c\u6709\u8fd9\u6837\u7684\u5173\u7cfb \uff0c\u90a3\u4e48\u5230\u70b9100\u548c\u5230\u70b9999\u8ddd\u79bb\u76f8\u7b49\u7684\u6570\u662f_____________\uff1b\u5230\u70b9 \u8ddd\u79bb\u76f8\u7b49\u7684\u70b9\u8868\u793a\u7684\u6570\u662f____________\uff1b\u5230\u70b9m\u548c\u70b9\u2013n\u8ddd\u79bb\u76f8\u7b49\u7684\u70b9\u8868\u793a\u7684\u6570\u662f________\u3002
5\uff0e\u8ba1\u7b97\uff1a =_________\u3002
6\uff0e\u5df2\u77e5 \uff0c\u5219 =_________\u3002
7.\u5982\u679c \uff1d2\uff0c\u90a3\u4e48x\uff1d .
8\uff0e\u5230\u70b93\u8ddd\u79bb4\u4e2a\u5355\u4f4d\u7684\u70b9\u8868\u793a\u7684\u6709\u7406\u6570\u662f_____________\u3002
9\uff0e________________________\u8303\u56f4\u5185\u7684\u6709\u7406\u6570\u7ecf\u8fc7\u56db\u820d\u4e94\u5165\u5f97\u5230\u7684\u8fd1\u4f3c\u65703.142\u3002
10\uff0e\u5c0f\u4e8e3\u7684\u6b63\u6574\u6570\u6709_____.
11. \u5982\u679cm<0\uff0cn\uff1e0\uff0c|m|\uff1e|n|\uff0c\u90a3\u4e48m+n__________0\u3002
12\uff0e\u4f60\u80fd\u5f88\u5feb\u7b97\u51fa \u5417\uff1f
\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u8003\u5bdf\u4e2a\u4f4d\u4e0a\u7684\u6570\u4e3a5\u7684\u6b63\u6574\u6570\u7684\u5e73\u65b9\uff0c\u4efb\u610f\u4e00\u4e2a\u4e2a\u4f4d\u6570\u4e3a5\u7684\u6b63\u6574\u6570\u53ef\u5199\u621010n\uff0b5\uff08n\u4e3a\u6b63\u6574\u6570\uff09\uff0c\u5373\u6c42 \u7684\u503c\uff0c\u8bd5\u5206\u6790 \uff0c2\uff0c3\u2026\u2026\u8fd9\u4e9b\u7b80\u5355\u60c5\u5f62\uff0c\u4ece\u4e2d\u63a2\u7d22\u5176\u89c4\u5f8b\u3002
\u2474\u901a\u8fc7\u8ba1\u7b97\uff0c\u63a2\u7d22\u89c4\u5f8b:
\u53ef\u5199\u6210 \uff1b
\u53ef\u5199\u6210 \uff1b
\u53ef\u5199\u6210 \uff1b
\u53ef\u5199\u6210 \uff1b
\u2026\u2026\u2026\u2026\u2026\u2026
\u53ef\u5199\u6210________________________________
\u53ef\u5199\u6210________________________________
\u2475\u6839\u636e\u4ee5\u4e0a\u89c4\u5f8b\uff0c\u8bd5\u8ba1\u7b97 =
13\uff0e\u89c2\u5bdf\u4e0b\u9762\u4e00\u5217\u6570\uff0c\u6839\u636e\u89c4\u5f8b\u5199\u51fa\u6a2a\u7ebf\u4e0a\u7684\u6570\uff0c
\uff0d \uff1b \uff1b\uff0d \uff1b \uff1b \uff1b \uff1b\u2026\u2026\uff1b\u7b2c2003\u4e2a\u6570\u662f \u3002
14\uff0e \u628a\u4e0b\u5217\u5404\u6570\u586b\u5728\u76f8\u5e94\u7684\u96c6\u5408\u5185\u3002
\u6574\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u975e\u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u6b63\u6709\u7406\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u8d1f\u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u4e8c \u9009\u62e9\u9898
15\uff0e\uff081\uff09\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08 \uff09
\uff08A\uff09\u7edd\u5bf9\u503c\u8f83\u5927\u7684\u6570\u8f83\u5927\uff1b
\uff08B\uff09\u7edd\u5bf9\u503c\u8f83\u5927\u7684\u6570\u8f83\u5c0f\uff1b
\uff08C\uff09\u7edd\u5bf9\u503c\u76f8\u7b49\u7684\u4e24\u6570\u76f8\u7b49\uff1b
\uff08D\uff09\u76f8\u7b49\u4e24\u6570\u7684\u7edd\u5bf9\u503c\u76f8\u7b49\u3002
16\uff0e \u5df2\u77e5a0,\u4e14|a|>|b|>|c|,\u5219|a|+|b|-|c|+|a+b|+|b+c|+|a+c|\u7b49\u4e8e\uff08 \uff09
A.-3a+b+c B.3a+3b+c C.a-b+2c D.-a+3b-3c
17.\u4e0b\u5217\u7ed3\u8bba\u6b63\u786e\u7684\u662f\uff08 \uff09
A. \u8fd1\u4f3c\u65701.230\u548c1.23\u7684\u6709\u6548\u6570\u5b57\u4e00\u6837
B. \u8fd1\u4f3c\u657079.0\u662f\u7cbe\u786e\u5230\u4e2a\u4f4d\u7684\u6570\uff0c\u5b83\u7684\u6709\u6548\u6570\u5b57\u662f7\u30019
C. \u8fd1\u4f3c\u65703.0324\u67095\u4e2a\u6709\u6548\u6570\u5b57
D. \u8fd1\u4f3c\u65705\u5343\u4e0e\u8fd1\u4f3c\u65705000\u7684\u7cbe\u786e\u5ea6\u76f8\u540c
18\uff0e\u4e24\u4e2a\u6709\u7406\u6570\u76f8\u52a0\uff0c\u5982\u679c\u548c\u6bd4\u5176\u4e2d\u4efb\u4f55\u52a0\u6570\u90fd\u5c0f\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u52a0\u6570\uff08 \uff09
\uff08A\uff09\u90fd\u662f\u6b63\u6570 \uff08B\uff09\u90fd\u662f\u8d1f\u6570 \uff08C\uff09\u4e92\u4e3a\u76f8\u53cd\u6570 \uff08D\uff09\u5f02\u53f7
19. \u5982\u679c\u6709\u7406\u6570 \uff08 \uff09
A. \u5f53
B.
C.
D. \u4ee5\u4e0a\u8bf4\u6cd5\u90fd\u4e0d\u5bf9
20\uff0e\u4e24\u4e2a\u975e\u96f6\u6709\u7406\u6570\u7684\u548c\u4e3a\u6b63\u6570\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6709\u7406\u6570\u4e3a\uff08 \uff09
\uff08A\uff09\u90fd\u662f\u6b63\u6570 \uff08B\uff09\u81f3\u5c11\u6709\u4e00\u4e2a\u4e3a\u6b63\u6570
\uff08C\uff09\u6b63\u6570\u5927\u4e8e\u8d1f\u6570 \uff08D\uff09\u6b63\u6570\u5927\u4e8e\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\uff0c\u6216\u90fd\u4e3a\u6b63\u6570\u3002
\u4e09\u8ba1\u7b97\u9898
21. \u6c42\u4e0b\u9762\u5404\u5f0f\u7684\u503c(-48)\u00f76-(-25)\u00d7(-4)
\uff082\uff095.6+[0.9+4.4-(-8.1)]\uff1b
\uff083\uff09120\u00d7( )\uff1b
\uff084\uff09
22. \u67d0\u5355\u4f4d\u4e00\u661f\u671f\u5185\u6536\u5165\u548c\u652f\u51fa\u60c5\u51b5\u5982\u4e0b\uff1a+853.5\u5143\uff0c+237.2\u5143\uff0c-325\u5143\uff0c+138.5\u5143\uff0c-280\u5143\uff0c-520\u5143\uff0c+103\u5143\uff0c\u90a3\u4e48\uff0c\u8fd9\u4e00\u661f\u671f\u5185\u8be5\u5355\u4f4d\u662f\u76c8\u4f59\u8fd8\u662f\u4e8f\u635f\uff1f\u76c8\u4f59\u6216\u4e8f\u635f\u591a\u5c11\u5143\uff1f
\u63d0\u793a\uff1a\u672c\u9898\u4e2d\u6b63\u6570\u8868\u793a\u6536\u5165\uff0c\u8d1f\u6570\u8868\u793a\u652f\u51fa\uff0c\u5c06\u4e03\u5929\u7684\u6536\u5165\u6216\u652f\u51fa\u6570\u76f8\u52a0\u540e\uff0c\u548c\u4e3a\u6b63\u6570\u8868\u793a\u76c8\u4f59\uff0c\u548c\u4e3a\u8d1f\u6570\u8868\u793a\u4e8f\u635f\u3002
23. \u67d0\u5730\u4e00\u5468\u5185\u6bcf\u5929\u7684\u6700\u9ad8\u6c14\u6e29\u4e0e\u6700\u4f4e\u6c14\u6e29\u8bb0\u5f55\u5982\u4e0b\u8868\uff0c\u54ea\u5929\u7684\u6e29\u5dee\u6700\u5927\u54ea\u5929\u7684\u6e29\u5dee\u6700\u5c0f\uff1f
\u661f\u671f \u4e00 \u4e8c \u4e09 \u56db \u4e94 \u516d \u4e03
\u6700\u9ad8\u6c14\u6e29 10�0�2C 11�0�2C 12�0�2C 9�0�2C 8�0�2C 9�0�2C 8�0�2C
\u6700\u4f4e\u6c14\u6e29 2�0�2C 0�0�2C 1�0�2C -1�0�2C -2�0�2C -3�0�2C -1�0�2C
24\u3001\u6b63\u5f0f\u6392\u7403\u6bd4\u8d5b\uff0c\u5bf9\u6240\u4f7f\u7528\u7684\u6392\u7403\u7684\u91cd\u91cf\u662f\u6709\u4e25\u683c\u89c4\u5b9a\u7684\u3002\u68c0\u67e55\u4e2a\u6392\u7403\u7684\u91cd\u91cf\uff0c\u8d85\u8fc7\u89c4\u5b9a\u91cd\u91cf\u7684\u514b\u6570\u8bb0\u4f5c\u6b63\u6570\uff0c\u4e0d\u8db3\u89c4\u5b9a\u91cd\u91cf\u7684\u514b\u6570\u8bb0\u4f5c\u8d1f\u6570\uff0c\u68c0\u67e5\u7ed3\u679c\u5982\u4e0b\u8868\uff1a
+15 -10 +30 -20 -40
\u6307\u51fa\u54ea\u4e2a\u6392\u7403\u7684\u8d28\u91cf\u597d\u4e00\u4e9b\uff08\u5373\u91cd\u91cf\u6700\u63a5\u8fd1\u89c4\u5b9a\u91cd\u91cf\uff09\uff1f\u4f60\u600e\u6837\u7528\u5b66\u8fc7\u7684\u7edd\u5bf9\u503c\u77e5\u8bc6\u6765\u8bf4\u660e\u8fd9\u4e2a\u95ee\u9898\uff1f
25. \u5df2\u77e5 ; ;
\uff081\uff09\u731c\u60f3\u586b\u7a7a\uff1a
\uff082\uff09\u8ba1\u7b97\u2460
\u246123+43+63+983+\u2026\u2026+1003
26\uff0e\u63a2\u7d22\u89c4\u5f8b\u5c06\u8fde\u7eed\u7684\u50762\uff0c4\uff0c6\uff0c8\uff0c\u2026\uff0c\u6392\u6210\u5982\u4e0b\u8868\uff1a
2 4 6 8 10
12 14 16 18 20
22 24 26 28 30
32 34 36 38 40
\u2026 \u2026
\uff081\uff09 \u5341\u5b57\u6846\u4e2d\u7684\u4e94\u4e2a\u6570\u7684\u548c\u4e0e\u4e2d\u95f4\u7684\u6570\u548c16\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f
\uff082\uff09 \u8bbe\u4e2d\u95f4\u7684\u6570\u4e3ax \uff0c\u7528\u4ee3\u6570\u5f0f\u8868\u793a\u5341\u5b57\u6846\u4e2d\u7684\u4e94\u4e2a\u6570\u7684\u548c.
\uff083\uff09 \u82e5\u5c06\u5341\u5b57\u6846\u4e0a\u4e0b\u5de6\u53f3\u79fb\u52a8\uff0c\u53ef\u6846\u4f4f\u53e6\u5916\u7684\u4e94\u4f4d\u6570\uff0c\u5176\u5b83\u4e94\u4f4d\u6570\u7684\u548c\u80fd\u7b49\u4e8e201\u5417\uff1f\u5982\u80fd\uff0c\u5199\u51fa\u8fd9\u4e94\u4f4d\u6570\uff0c\u5982\u4e0d\u80fd\uff0c\u8bf4\u660e\u7406\u7531\u3002
27\uff0e\u8bbey=ax5+bx3+cx-5,\u5176\u4e2da,b,c,\u4e3a\u5e38\u6570\uff0c\u5df2\u77e5\u5f53x= -5\u65f6\uff0cy=7,\u6c42\u5f53x=5\u65f6\uff0c\u6c42y\u7684\u503c\u3002
\u6709\u7406\u6570\u7ec3\u4e60\u9898\u53c2\u8003\u7b54\u6848
\u4e00 \u586b\u7a7a\u9898
1\uff0e 4, - , .\u63d0\u793a\uff1a\u9898\u867d\u7b80\u5355\uff0c\u4f46\u8fd9\u7c7b\u6982\u5ff5\u9898\u5728\u4e03\u5e74\u7ea7\u7684\u8003\u8bd5\u4e2d\u51e0\u4e4e\u5fc5\u8003\u3002
2\uff0e 0\uff0c0\uff0e\u63d0\u793a\uff1a|x|\u22650,|y|\u22650.\u2234x=0,y=0.
3\uff0e\u76f8\u7b49\u6216\u8005\u4e92\u4e3a\u76f8\u53cd\u6570\u3002\u63d0\u793a\uff1a\u4e92\u4e3a\u76f8\u53cd\u6570\u7684\u7edd\u5bf9\u503c\u76f8\u7b49 \u3002
4\uff0e 549.5, , .\u63d0\u793a:\u5230\u6570\u8f74\u4e0a\u4e24\u70b9\u76f8\u7b49\u7684\u6570\u7684\u4e2d\u70b9\u7b49\u4e8e\u8fd9\u4e24\u6570\u548c\u7684\u4e00\u534a.
5\uff0e 0.\u63d0\u793a\uff1a\u6bcf\u76f8\u90bb\u7684\u4e24\u9879\u7684\u548c\u4e3a0\u3002
6\uff0e -8.\u63d0\u793a\uff1a ,4+a=0,a-2b=0,\u89e3\u5f97:a= -4,b= -2. = -8.
7. x-3=\u00b12\u3002x=3\u00b12,x=5\u6216x=1.
8\uff0e -1\u62167\u3002\u63d0\u793a\uff1a\u70b93\u8ddd\u79bb4\u4e2a\u5355\u4f4d\u7684\u70b9\u8868\u793a\u7684\u6709\u7406\u6570\u662f3\u00b14\u3002
9\uff0e 3.1415-3.1424\uff0e\u63d0\u793a\uff1a\u6309\u7167\u56db\u820d\u4e94\u5165\u7684\u89c4\u5219\u3002
10\uff0e1,2.\u63d0\u793a\uff1a\u5927\u4e8e\u96f6\u7684\u6574\u6570\u79f0\u4e3a\u6b63\u6574\u6570\u3002
11. <0.\u63d0\u793a\uff1a\u6709\u7406\u6570\u7684\u52a0\u6cd5\u7684\u7b26\u53f7\u53d6\u51b3\u4e8e\u7edd\u5bf9\u503c\u5927\u7684\u6570\u3002
12\uff0e =5625=100\u00d75\u00d7(5+1)+25; =7225=100\u00d78\u00d7(8+1)+25;
=100\u00d710\u00d7(10+1)+25=11025.
13\uff0e , , .\u63d0\u793a:\u8fd9\u4e00\u5217\u6570\u7684\u7b2cn\u9879\u53ef\u8868\u793a\u4e3a(-1)n .
14\uff0e \u63d0\u793a\uff1a\uff081\uff09\u96c6\u5408\u662f\u6307\u5177\u6709\u67d0\u4e00\u7279\u5f81\u7684\u4e00\u7c7b\u4e8b\u7269\u7684\u5168\u4f53\uff0c\u6ce8\u610f\u4e0d\u8981\u6f0f\u6389\u65700\uff0c\u9898\u76ee\u4e2d\u53ea\u662f\u5177\u4f53\u7684\u51e0\u4e2a\u7b26\u5408\u6761\u4ef6\u7684\u6570\uff0c\u53ea\u662f\u4e00\u90e8\u5206\uff0c\u6240\u4ee5\u901a\u5e38\u8981\u52a0\u7701\u7565\u53f7\u3002
\uff082\uff09\u975e\u8d1f\u6570\u8868\u793a\u4e0d\u662f\u8d1f\u6570\u7684\u6240\u6709\u6709\u7406\u6570\uff0c\u5e94\u4e3a\u6b63\u6570\u548c\u96f6\uff0c\u90a3\u4e48\u975e\u6b63\u6570\u8868\u793a\u4ec0\u4e48\u5462\uff1f\uff08\u7b54\uff1a\u8d1f\u6570\u548c\u96f6\uff09
\u7b54\u6848\uff1a\u6574\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u975e\u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u6b63\u6709\u7406\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u8d1f\u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d
\u4e8c \u9009\u62e9\u9898
15\uff0e D.\u63d0\u793a\uff1a\u5bf9\u4e8e\u4e24\u4e2a\u8d1f\u6570\u6765\u8bf4\uff0c\u7edd\u5bf9\u503c\u5c0f\u7684\u6570\u53cd\u800c\u5927\uff0c\u6240\u4ee5A\u9519\u8bef\u3002\u5bf9\u4e8e\u4e24\u4e2a\u6b63\u6570\u6765\u8bf4\uff0c\u7edd\u5bf9\u503c\u5927\u7684\u6570\u5927\uff0c\u6240\u4ee5B\u9519\u8bef\u3002\u4e92\u4e3a\u76f8\u53cd\u6570\u7684\u4e24\u4e2a\u6570\u7684\u7edd\u5bf9\u503c\u76f8\u7b49\u3002
16\uff0eA.\u63d0\u793a\uff1a-a+b-(-c)-(a+b)+(b+c)-(a+c)= -3a+b+c
17. C.\u63d0\u793a\uff1a\u6709\u6548\u6570\u5b57\u7684\u5b9a\u4e49\u662f\u4ece\u5de6\u8fb9\u7b2c\u4e00\u4f4d\u4e0d\u4e3a\u96f6\u7684\u6570\u5b57\u8d77\uff0c\u5230\u53f3\u8fb9\u6700\u540e\u4e00\u4e2a\u6570\u5b57\u7ed3\u675f\u300218\uff0eB
19.C \u63d0\u793a\uff1a\u5f53n\u4e3a\u5947\u6570\u65f6, , <0. \u5f53n\u4e3a\u5076\u6570\u65f6\uff0c , <0.\u6240\u4ee5n\u4e3a\u4efb\u610f\u81ea\u7136\u6570\u65f6\uff0c\u603b\u6709 <0\u6210\u7acb.
20\uff0e D.\u63d0\u793a\uff1a\u4e24\u4e2a\u6709\u7406\u6570\u60f3\u52a0\uff0c\u6240\u5f97\u6570\u7684\u7b26\u53f7\u7531\u7edd\u5bf9\u503c\u5927\u7684\u6570\u89c9\u5f97\u51b3\u5b9a\u3002
\u4e09\u8ba1\u7b97\u9898
21. \u6c42\u4e0b\u9762\u5404\u5f0f\u7684\u503c
\uff081\uff09-108
\uff082\uff0919 .\u63d0\u793a\uff1a\u5148\u53bb\u62ec\u53f7\uff0c\u540e\u8ba1\u7b97\u3002
\uff083\uff09-111 .\u63d0\u793a: 120\u00d7( )
120\u00d7( )
=120\u00d7(- )+120\u00d7 -120\u00d7
= -111
\uff084\uff09 .\u63d0\u793a;
=1- +
=
22. \u63d0\u793a\uff1a\u672c\u9898\u4e2d\u6b63\u6570\u8868\u793a\u6536\u5165\uff0c\u8d1f\u6570\u8868\u793a\u652f\u51fa\uff0c\u5c06\u4e03\u5929\u7684\u6536\u5165\u6216\u652f\u51fa\u6570\u76f8\u52a0\u540e\uff0c\u548c\u4e3a\u6b63\u6570\u8868\u793a\u76c8\u4f59\uff0c\u548c\u4e3a\u8d1f\u6570\u8868\u793a\u4e8f\u635f\u3002
\u89e3\uff1a\uff08+853.5\uff09+\uff08+237.2\uff09+\uff08-325\uff09+\uff08+138.5\uff09+\uff08-520\uff09+\uff08-280\uff09+\uff08+103\uff09
\uff1d[\uff08+853.5\uff09+\uff08+237.2\uff09+\uff08+138.5\uff09+\uff08+103\uff09]+[\uff08-325\uff09+\uff08-520\uff09+\uff08-280\uff09]
\uff1d\uff08+1332.2\uff09+\uff08-1125\uff09
\uff1d+207.2
\u6545\u672c\u661f\u671f\u5185\u8be5\u5355\u4f4d\u76c8\u4f59\uff0c\u76c8\u4f59207.2\u5143\u3002
23. \u63d0\u793a\uff1a\u6c42\u6e29\u5dee\u5229\u7528\u51cf\u6cd5\uff0c\u5373\u6700\u9ad8\u6e29\u5ea6\u7684\u5dee\uff0c\u518d\u6bd4\u8f83\u5b83\u4eec\u7684\u5927\u5c0f\u3002
\u89e3\uff1a\u5468\u4e00\u6e29\u5dee\uff1a10-2\uff1d8\uff08�0�2C\uff09
\u5468\u4e8c\u6e29\u5dee\uff1a11-0\uff1d11\uff08�0�2C\uff09
\u5468\u4e09\u6e29\u5dee\uff1a12-1\uff1d11\uff08�0�2C\uff09
\u5468\u56db\u6e29\u5dee\uff1a9-\uff08-1\uff09\uff1d10\uff08�0�2C\uff09
\u5468\u4e94\u6e29\u5dee\uff1a8-\uff08-2\uff09\uff1d10\uff08�0�2C\uff09
\u5468\u516d\u6e29\u5dee\uff1a9-\uff08-3\uff09\uff1d12\uff08�0�2C\uff09
\u5468\u65e5\u6e29\u5dee\uff1a8-\uff08-1\uff09\uff1d9\uff08�0�2C\uff09
\u6240\u4ee5\u5468\u516d\u6e29\u5dee\u6700\u5927\uff0c\u5468\u4e00\u6e29\u5dee\u6700\u5c0f\u3002
24\u3001
\u89e3\uff1a\u7b2c\u4e8c\u53ea\u6392\u7403\u8d28\u91cf\u597d\u4e00\u4e9b\uff0c\u5229\u7528\u8fd9\u4e9b\u6570\u636e\u7684\u7edd\u5bf9\u503c\u7684\u5927\u5c0f\u6765\u5224\u65ad\u6392\u7403\u7684\u8d28\u91cf\uff0c\u7edd\u5bf9\u503c\u8d8a\u5c0f\u8bf4\u660e\u8d8a\u63a5\u8fd1\u89c4\u5b9a\u91cd\u91cf\uff0c\u56e0\u6b64\u8d28\u91cf\u4e5f\u5c31\u597d\u4e00\u4e9b\u3002
25.
\uff081\uff09 \uff082\uff09\u246025502500\uff1b\u63d0\u793a\uff1a\u539f\u5f0f=
\u2461\u539f\u5f0f=
=23\u00d713+23\u00d723+23\u00d733+23\u00d743+23\u00d753+\u2026\u2026+23\u00d7503
=23(13+23+33+43+53+\u2026\u2026+503)
=8\u00d7
=13005000
26\uff0e
(1) \u5341\u5b57\u6846\u4e2d\u7684\u4e94\u4e2a\u6570\u7684\u548c\u7b49\u4e8e\u4e2d\u95f4\u76845\u500d\u3002
(2) 5x
(3) \u4e0d\u80fd\uff0c\u5047\u8bbe5x=201.x=40.2.\u4e0d\u662f\u6574\u6570.\u6240\u4ee5\u4e0d\u5b58\u5728\u8fd9\u4e48\u4e00\u4e2ax.
27\uff0ey=ax5+bx3+cx-5,y+5= ax5+bx3+cx,\u5f53x=-5\u65f6\uff0cy+5=12.
-(y+5)=-ax5-bx3-cx=a(-x)5+b(-x)3+c(-x)
\u2234\u5f53x=5\u65f6\uff0ca(-5)5+b(-5)3+c(-5)\uff1d\uff0d12\uff1b
a(-5)5+b(-5)3+c(-5)-5= -17
\u672c\u7ec3\u4e60\u7b54\u6848\u4ec5\u4f9b\u53c2\u8003\uff01\u96be\u5ea6\u53ef\u80fd\u8981\u7a0d\u9ad8\u4e8e\u4e00\u4e9b\u9009\u62d4\u8003\u8bd5\u7684\u9898\u76ee\u3002
\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f
a \u6b63\u6570\u548c\u8d1f\u6570\u7edf\u79f0\u4e3a\u6709\u7406\u6570 - \u9519
b \u6574\u6570\u90fd\u662f\u6709\u7406\u6570 - \u6b63\u786e
c \u6574\u6570\u90fd\u662f\u81ea\u7136\u6570 - \u9519
d \u96f6\u65e2\u4e0d\u662f\u6574\u6570\u4e5f\u4e0d\u662f\u5206\u6570 - \u9519
\u5728\u5c0f\u7ec4\u8ba8\u8bba\u201c\u5bf90\u7684\u8ba4\u8bc6\u201d\u65f6\uff0c\u738b\u83f2\uff0c\u5468\u51b0\uff0c\u9648\u5efa\uff0c\u674e\u9896\u5c0f\u7ec4\u56db\u540d\u540c\u5b66\u7684\u8ba4\u8bc6\u5982\u4e0b\ufe55
\u738b\u83f2\ufe550\u5728\u8ba1\u6570\u65f6\uff0c\u8868\u793a\u4ec0\u4e48\u4e5f\u6ca1\u6709\uff08\u5bf9\uff09\uff0c\u4f46\u662f\u5728\u8868\u793a\u6e29\u5ea6\u65f6\uff0c\u662f\u6307\u51b0\u70b9\u6e29\u5ea6\uff08\u5bf9\uff09\uff1b
\u5468\u51b0\ufe550\u65e2\u4e0d\u662f\u6b63\u6570\uff08\u5bf9\uff09\uff0c\u53c8\u4e0d\u662f\u8d1f\u6570\uff08\u5bf9\uff09\uff0c\u5b83\u662f\u6b63\u6570\u4e0e\u8d1f\u6570\u7684\u5206\u754c\uff08\u9519\uff09\uff1b
\u9648\u5efa\ufe550\u662f\u6700\u5c0f\u7684\u81ea\u7136\u6570\uff08\u5bf9\uff09\uff0c0\u4e5f\u662f\u6700\u5c0f\u7684\u975e\u8d1f\u6570\uff08\u5bf9\uff09\uff1b
\u674e\u9896\ufe550\u662f\u6574\u6570\uff08\u5bf9\uff09\uff0c0\u662f\u6709\u7406\u6570\uff08\u5bf9\uff09\uff0c0\u662f\u5076\u6570\uff08\u9519\uff09.
\u4ed6\u4eec\u56db\u4eba\u7684\u8ba4\u8bc6\u4e2d\uff0c\u54ea\u4e9b\u662f\u6b63\u786e\u7684\uff1f
七年级上册课时夺冠第一章测试卷答案全图 谁有,
绛旓細涓銆佸垪浠ｆ暟寮忛棶棰 鍒濅竴鏁板璇曢涓句緥锛氱敳妤兼瘮涓欐ゼ楂24.5绫筹紝涔欐ゼ姣斾笝妤奸珮15.6绫筹紝鍒欎箼妤兼瘮鐢叉ゼ浣庡灏戠背銆傝В锛氳涓欐ゼ楂樹负x绫筹紝閭ｄ箞鐢叉ゼ楂橈紙x+ 24.5)绫筹紝涔欐ゼ楂橈紙x+ 16.5)绫筹紝(X+ 16.5)-(x+ 24.5)=-8.9,鍗充箼妤兼瘮鐢叉ゼ浣8.9绫炽備簩銆鏈夌悊鏁鐨勮绠楅棶棰 璇曢鍒嗘瀽锛氶嗙敤鏈夌悊鏁扮殑...
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