求几道奥数题做做，拜托了，四年级的，最好是和差问题 四年级和差问题10道答案
\u56db\u5e74\u7ea7\u548c\u5dee\u95ee\u9898 \u5965\u6570\u9898 \u5728\u7ebf\u7b49\u4e00\u5171\u662f52\u5757 \u94fa\u4e00\u5468\u5269\u4e0b20\u5757 \u518d\u94fa\u4e00\u5468\u5dee\u5341\u4e8c\u5757\u4e5f\u5c31\u662f\u94fa\u4e00\u5468\u9700\u898120\u5757\u52a012\u5757\u4e00\u5171\u662f32\u5757 \u4e09\u5341\u4e8c\u5757\u52a0\u4e0a\u5269\u4e0b\u768420\u5757\u4e5f\u5c31\u662f32+20=52\u5757
1. \u4e00\u73ed\u548c\u4e8c\u73ed\u7684\u540c\u5b66\u53bb\u79cb\u6e38\uff0c\u4e00\u73ed48\u4eba\uff0c\u4e8c\u73ed53\u4eba\uff0c\u540c\u5b66\u4e58\u8f66\u6bcf\u4eba\u8f66\u8d393\u5143\uff0c\u4e8c\u73ed\u6bd4\u4e00\u73ed\u591a\u4ed8 \u5143\uff1f
2. \u7532\u3001\u4e59\u4e24\u6570\u7684\u6700\u5927\u516c\u7ea6\u6570\u662f75\uff0c\u6700\u5c0f\u516c\u500d\u6570\u662f450\uff0e\u82e5\u5b83\u4eec\u7684\u5dee\u6700\u5c0f\uff0c\u5219\u4e24\u4e2a\u6570\u4e3a______\u548c______\uff0e
3. \u5728\u67d0\u6821\u5468\u957f400\u7c73\u7684\u73af\u5f62\u8dd1\u9053\u4e0a\uff0c\u6bcf\u96948\u7c73\u63d2\u4e00\u9762\u7ea2\u65d7\uff0c\u7136\u540e\u5728\u76f8\u90bb\u4e24\u9762\u7ea2\u65d7\u4e4b\u95f4\u6bcf\u96942\u7c73\u63d2\u4e00\u9762\u9ec4\u65d7\uff0c\u5e94\u51c6\u5907\u7ea2\u65d7______\u9762\uff0c\u9ec4\u65d7______\u9762\uff0e
4. \u660e\u660e\u661f\u671f\u5929\u4e0a\u8857\u4e70\u8863\u670d\uff0c\u82b175\u5143\u94b1\u4e70\u4e86\u4e00\u6761\u88e4\u5b50\u548c\u4e00\u4ef6\u4e0a\u8863\uff0c\u5df2\u77e5\u4e0a\u8863\u6bd4\u88e4\u5b50\u8d3515\u5143\uff0c\u660e\u660e\u4e70\u4e0a\u8863\u82b1 \u5143\uff0e
5. \u5c0f\u6885\u4e0e\u5f20\u82b3\u4eca\u5e74\u7684\u5e74\u9f84\u548c\u662f39\u5c81\uff0c\u5c0f\u6885\u6bd4\u5f20\u82b3\u59273\u5c81\uff0c\u5f20\u82b3\u4eca\u5e74 \u5c81\uff0e
6. \u4e70\u4e00\u652f\u81ea\u52a8\u94c5\u7b14\u4e0e\u4e00\u652f\u94a2\u7b14\u5171\u752810\u5143\uff0c\u5df2\u77e5\u94c5\u7b14\u6bd4\u94a2\u7b14\u4fbf\u5b9c6\u5143\uff0c\u90a3\u4e48\u4e70\u94c5\u7b14\u82b1 \u5143\uff0c\u4e70\u94a2\u7b14\u82b1 \u5143\uff0e
7. \u4e24\u4e2a\u6570\u7684\u548c\u4e3a36\uff0c\u5dee\u4e3a22\uff0c\u5219\u8f83\u5927\u7684\u6570\u4e3a \uff0c\u8f83\u5c0f\u7684\u6570\u4e3a \uff0e
8. \u5c0f\u519b\u548c\u4ed6\u7238\u7238\u4eca\u5e74\u7684\u5e74\u9f84\u4e4b\u548c\u662f42\u5c81\uff0c\u5e74\u9f84\u4e4b\u5dee\u662f26\u5c81\uff0e\u5c0f\u519b\u4eca\u5e74 \u5c81\uff0c\u4ed6\u7238\u7238\u4eca\u5e74 \u5c81\uff0e
9. \u4e09\u5e74\u7ea7\u4e00\u73ed\u6709\u5b66\u751f49\u4eba\uff0c\u5176\u4e2d\u5973\u751f\u6bd4\u7537\u751f\u5c115\u4eba\uff0e\u8fd9\u4e2a\u73ed\u7537\u751f\u6709 \u4eba\uff0c\u5973\u751f\u6709 \u4eba\uff0e
10. \u65b9\u65b9\u548c\u5706\u5706\u5171\u6709\u56fe\u4e6670\u672c\uff0c\u5982\u679c\u65b9\u65b9\u7ed9\u5706\u57065\u672c\uff0c\u90a3\u4e48\u5706\u5706\u5c31\u6bd4\u65b9\u65b9\u591a4\u672c\uff0e\u95ee\uff1a\u65b9\u65b9\u539f\u6765\u6709\u56fe\u4e66 \u672c\uff0c\u5706\u5706\u539f\u6765\u6709\u56fe\u4e66 \u672c\uff0e
11. \u7532\u7684\u4e66\u6bd4\u4e59\u591a9\u672c\uff0c\u6bd4\u4e19\u591a2\u672c\uff0c\u4e59\u3001\u4e19\u5171\u6709\u4e6647\u672c\uff0e\u95ee\uff1a\u7532\u6709 \u672c\u4e66\u3001\u4e59\u6709 \u672c\u4e66\u3001\u4e19\u6709 \u672c\u4e66\uff0e
12. \u67d0\u6587\u5177\u5e97\u5171\u6709\u94a2\u7b14\u548c\u5706\u73e0\u7b14140\u652f\uff0c\u94a2\u7b14\u6bd4\u5706\u73e0\u7b14\u591a10\u652f\uff0c\u94a2\u7b14\u6709 \u652f\uff0c\u5706\u73e0\u7b14\u6709 \u652f\uff0e
13. \u4e24\u5c42\u4e66\u67b6\u5171124\u672c\u4e66\uff0c\u5982\u679c\u4ece\u4e0b\u5c42\u53d68\u672c\u4e66\u653e\u5230\u4e0a\u5c42\u53bb\uff0c\u5219\u4e24\u5c42\u4e66\u7684\u672c\u6570\u5c31\u76f8\u7b49\uff0c\u5219\u4e0a\u5c42\u539f\u6765\u6709\u4e66 \u672c\uff0c\u4e0b\u5c42\u539f\u6765\u6709\u4e66 \u672c\uff0e
14. \u5c0f\u661f\u548c\u5c0f\u5170\u5171\u6709\u94c5\u7b1425\u652f\uff0c\u5982\u679c\u5c0f\u661f\u7528\u53bb4\u652f\uff0c\u5c0f\u5170\u7528\u53bb3\u652f\uff0c\u90a3\u4e48\u5c0f\u661f\u8fd8\u6bd4\u5c0f\u5170\u591a2\u652f\uff0c\u5c0f\u661f\u539f\u6709\u94c5\u7b14 \u652f\uff0c\u5c0f\u5170\u539f\u6709\u94c5\u7b14 \u652f\uff0e
15. \u4e24\u4e2a\u6570\u7684\u548c\u662f1980\uff0c\u4ece\u7532\u6570\u4e2d\u51cf\u53bb285\u52a0\u5230\u4e59\u6570\u4e0a\uff0c\u4e59\u6570\u8fd8\u6bd4\u7532\u6570\u5c1124\uff0c\u5219\u7532\u6570\u662f \uff0c\u4e59\u6570\u662f .
\u548c\u5dee\u95ee\u98981
\u7b54\u6848\u5377
1. 15
\u89e3\uff1a(53-48)\u00d73 = 15\uff08\u5143\uff09\uff0e
2. 225\uff0c150
\u89e3\uff1a\u56e0450\u00f775=6\uff0c\u6240\u4ee5\u6700\u5927\u516c\u7ea6\u6570\u4e3a75\uff0c\u6700\u5c0f\u516c\u500d\u6570\u662f450\u7684\u4e24\u6574\u6570\u670975\u00d76\uff0c75\u00d71\u548c75\u00d73\uff0c75\u00d72\u4e24\u7ec4\uff0c\u7ecf\u6bd4\u8f83\u540e\u4e00\u79cd\u5dee\u8f83\u5c0f\uff0c\u5373225\u548c150\u4e3a\u6240\u6c42\uff0e
3. 50\u3001150
\u89e3\uff1a400\u00f78 = 50\uff08\u9762\uff09\uff0c8\u00f72-1 = 3\uff08\u9762\uff09\uff0c3\u00d750 = 150\uff08\u9762\uff09\uff0e
4. 45
\u89e3\uff1a\u5047\u8bbe\u88e4\u5b50\u548c\u4e0a\u8863\u4ef7\u94b1\u76f8\u540c\uff0c\u5219\u5e94\u82b175+15 = 90(\u5143)\uff0c\u8fd9\u662f\u4e24\u4ef6\u4e0a\u8863\u7684\u4ef7\u94b1\uff0c\u4e00\u4ef6\u4e0a\u8863\u662f90\u00f72 = 45(\u5143).
\u7b54\uff1a\u660e\u660e\u4e70\u4e0a\u8863\u82b145\u5143\uff0e
5. 18
\u89e3\uff1a\u5047\u8bbe\u5c0f\u6885\u4e0e\u5f20\u82b3\u4e00\u6837\u5927\uff0c\u5219\u4ed6\u4eec\u4eca\u5e74\u7684\u5e74\u9f84\u548c\u5e94\u662f39-3=36(\u5c81)\uff0c\u8fd9\u662f\u5f20\u82b3\u5e74\u9f84\u76842\u500d\uff0c
\u5f20\u82b3\u5e74\u9f84\u662f36\u00f72 = 18(\u5c81)\uff0e
\u7b54\uff1a\u5f20\u82b3\u4eca\u5e7418\u5c81\uff0e
6. 2\uff0c8
\u89e3\uff1a\u89e3\u6cd5\u4e00\uff1a\u5047\u8bbe\u94c5\u7b14\u4e0e\u94a2\u7b14\u4ef7\u94b1\u76f8\u540c\uff0c\u4e70\u4e00\u652f\u94c5\u7b14\u4e00\u652f\u94a2\u7b14\u5e94\u82b110+6=16(\u5143)\u8fd9\u662f\u4e24\u652f\u94a2\u7b14\u7684\u4ef7\u94b1\uff0c\u4e00\u652f\u94a2\u7b14\u82b116\u00f72 = 8(\u5143)\uff0c\u5219\u4e00\u652f\u94c5\u7b14\u82b18-6=2(\u5143)\u621610-8=2(\u5143)\uff0e
\u7b54\uff1a\u4e00\u652f\u94c5\u7b142\u5143\uff0c\u4e00\u652f\u94a2\u7b148\u5143\uff0e
\u89e3\u6cd5\u4e8c\uff1a\u5047\u8bbe\u94a2\u7b14\u4e0e\u94c5\u7b14\u4ef7\u94b1\u76f8\u540c\uff0c\u4e70\u4e00\u652f\u94c5\u7b14\u4e00\u652f\u94a2\u7b14\u5e94\u82b110-6=4(\u5143)\uff0c\u8fd9\u662f\u4e24\u652f\u94c5\u7b14\u7684\u4ef7\u94b1\uff0c\u4e00\u652f\u94c5\u7b14\u82b14\u00f72 = 2(\u5143)\uff0c\u5219\u4e00\u652f\u94a2\u7b14\u82b12+6=8(\u5143)\u621610-2=8(\u5143)\uff0e
\u7b54\uff1a\u4e00\u652f\u94c5\u7b142\u5143\uff0c\u4e00\u652f\u94a2\u7b148\u5143\uff0e
7. 29\uff0c7
\u89e3\uff1a\u8f83\u5927\u6570= (36+22)\u00f72 = 29
\u8f83\u5c0f\u6570= (36-22)\u00f72 = 7
8. 8\uff0c34
\u5206\u6790\uff1a\u4e0e\u548c\u5dee\u95ee\u9898\u7684\u57fa\u672c\u6570\u5b66\u683c\u5f0f\u5bf9\u6bd4\u77e5\uff0c\u5982\u679c\u628a\u7238\u7238\u7684\u5c81\u6570\u770b\u6210\u201c\u5927\u6570\u201d\uff0c\u5c0f\u519b\u7684\u5c81\u6570\u770b\u6210\u201c\u5c0f\u6570\u201d\uff0c\u90a3\u4e48\u5b83\u4eec\u7684\u548c\u4e3a42\uff0c\u5dee\u4e3a26\uff0e\u7531\u548c\u5dee\u516c\u5f0f\u53ef\u4ee5\u6c42\u89e3\uff0e
\u89e3\uff1a\u7238\u7238\u7684\u5c81\u6570= (42+26)\u00f72 = 34(\u5c81)\uff0c
\u5c0f\u519b\u7684\u5c81\u6570= (42-26)\u00f72 = 8(\u5c81)\uff0e
\u7b54\uff1a\u4eca\u5e74\u5c0f\u519b8\u5c81\uff0c\u7238\u723834\u5c81\uff0e
9. 27\uff0c22
\u89e3\uff1a\u7537\u751f(49+5)\u00f72 = 27(\u4eba)\uff0c
\u5973\u751f 49-27=22(\u4eba)\uff0e
\u7b54\uff1a\u7537\u751f27\u4eba\uff0c\u5973\u751f22\u4eba\uff0e
10. 38\uff0c32
\u5206\u6790\uff1a\u65b9\u65b9\u7ed9\u5706\u57065\u672c\u540e\uff0c\u4e24\u4eba\u5171\u6709\u56fe\u4e6670\u672c\uff0c\u5706\u5706\u6bd4\u65b9\u65b9\u591a4\u672c\uff0e\u8fd9\u662f\u5178\u578b\u7684\u548c\u5dee\u95ee\u9898\uff0e\u6c42\u51fa\u6b64\u65f6\u4e24\u4eba\u5404\u591a\u5c11\u672c\u4e66\u540e\uff0c\u5c31\u53ef\u4ee5\u6c42\u51fa\u539f\u6765\u4e24\u4eba\u5404\u6709\u591a\u5c11\u4e66\uff0e
\u89e3\uff1a\u5982\u679c\u65b9\u65b9\u7ed9\u5706\u57065\u672c\uff0c\u90a3\u4e48\u5706\u5706\u5c31\u6709
(70+4)\u00f72=37(\u672c)\uff0c
\u6240\u4ee5\uff0c\u539f\u6765\u5706\u5706\u670937-5=32(\u672c)\uff0c\u65b9\u65b9\u670970-32=38(\u672c)\uff0e
\u7b54\uff1a\u65b9\u65b9\u670938\u672c\uff0c\u5706\u5706\u670932\u672c\uff0e
11. 29\uff0c20\uff0c27
\u5206\u6790\uff1a\u548c\u5dee\u95ee\u9898\u662f\u6307\u4e24\u4e2a\u6570\u7684\u548c\u4e0e\u5dee\uff0c\u73b0\u5728\u51fa\u73b0\u4e86\u4e09\u4e2a\u6570\uff0c\u9700\u8981\u5316\u4e3a\u4e24\u4e2a\u6570\u7684\u548c\u5dee\u95ee\u9898\uff0e\u56e0\u4e3a\u201c\u7532\u7684\u4e66\u6bd4\u4e59\u591a9\u672c\uff0c\u6bd4\u4e19\u591a2\u672c\u201d\uff0c\u8bf4\u660e\u4e59\u7684\u4e66\u6bd4\u4e19\u5c119-2 = 7(\u672c)\uff0e\u7531\u201c\u4e59\u3001\u4e19\u5171\u6709\u4e6647\u672c\u201d\uff0c\u4e59\u6bd4\u4e19\u5c117\u672c\uff0c\u53ef\u7528\u548c\u5dee\u516c\u5f0f\u6c42\u89e3\uff0e
\u89e3\uff1a\u4e59\u6709\u4e66 [47-(9-2)]\u00f72 = 20(\u672c)\uff0c
\u4e19\u6709\u4e66 47-20=27(\u672c)\uff0c
\u7532\u6709\u4e66 20+9=29(\u672c)\uff0e
\u7b54\uff1a\u7532\u670929\u672c\uff0c\u4e59\u670920\u672c\uff0c\u4e19\u670927\u672c\uff0e
12. 75\uff0c65
\u89e3\uff1a\u56e0\u4e3a\u94a2\u7b14\u6bd4\u5706\u73e0\u7b14\u591a10\u652f\uff0c\u53ef\u4ee5\u5148\u4ece\u94a2\u7b14\u91cc\u51cf\u53bb\u591a\u768410\u652f\uff08\u4e5f\u5c31\u662f\u4ece\u4e24\u79cd\u7b14\u7684\u548c140\u652f\u91cc\u51cf\u53bb10\u652f\uff09\u4f7f\u4e24\u79cd\u7b14\u7684\u652f\u6570\u76f8\u7b49\uff0c\u4e3a\u201c\u5e73\u5747\u5206\u62102\u4efd\u201d\u5177\u5907\u6761\u4ef6\uff0c\u5176\u4e2d1\u4efd\u662f\u5706\u73e0\u7b14\uff0c\u53e6\u4e00\u4efd\u589e\u52a0\u5047\u8bbe\u51cf\u5c11\u768410\u652f\u662f\u94a2\u7b14\uff0e
(140-10)\u00f72 = 130\u00f72 = 65\uff08\u652f\uff09 65+10 = 75\uff08\u652f\uff09
\u672c\u9898\u4e5f\u53ef\u4ee5\u8fd9\u6837\u60f3\uff1a\u5047\u8bbe\u5706\u73e0\u7b14\u589e\u52a010\u652f\uff0c\u90a3\u4e48\u4e24\u79cd\u7b14\u7684\u652f\u6570\u76f8\u7b49\uff0c\u53c8\u53ef\u4ee5\u201c\u5e73\u5747\u5206\u6210\u4e24\u4efd\u201d\u4e86\uff0c\u5176\u4e2d\u4e00\u4efd\u662f\u94a2\u7b14\uff0c\u53e6\u4e00\u4efd\u51cf\u53bb\u5047\u8bbe\u589e\u52a0\u768410\u652f\u662f\u5706\u73e0\u7b14\uff0e
(140+10)\u00f72 = 75\uff08\u652f\uff09 75-10 = 65\uff08\u652f\uff09
\u7b54\uff1a\u94a2\u7b14\u662f75\u652f\uff0c\u5706\u73e0\u7b14\u662f65\u652f\uff0e
13. 54\uff0c70
\u89e3\uff1a\u4e0b\u5c42\u53d6\u51fa8\u672c\uff0c\u800c\u4e0a\u5c42\u653e\u8fdb8\u672c\u4ee5\u540e\uff0c\u4e0a\u4e0b\u5c42\u4e66\u7684\u672c\u6570\u76f8\u7b49\uff0c\u56e0\u6b64\uff0c\u672a\u53d6\u4e66\u4e4b\u524d\uff0c\u539f\u6765\u4e24\u5c42\u4e66\u7684\u672c\u6570\u76f8\u5dee16\u672c\uff0c\uff088\u672c+8\u672c\uff09\u77e5\u9053\u4e86\u4e24\u5c42\u4e66\u672c\u6570\u7684\u5dee\uff0c\u53c8\u77e5\u9053\u4e86\u5b83\u4eec\u7684\u548c\uff0c\u8981\u6c42\u8fd9\u4e24\u4e2a\u6570\uff0c\u6309\u7167\u548c\u5dee\u95ee\u9898\u89e3\uff0e
(124+8+8)\u00f72 = 140\u00f72 = 70\uff08\u672c\uff09 124-70 = 54\uff08\u672c\uff09
\u672c\u9898\u4e5f\u53ef\u4ee5\u8fd9\u6837\u601d\u8003\uff1a\u56e0\u4e3a\u4e0b\u5c42\u53d6\u51fa8\u672c\u4e66\u653e\u5230\u4e0a\u5c42\u53bb\uff0c\u4e24\u5c42\u4e66\u7684\u672c\u6570\u76f8\u7b49\uff0c\u8fd9\u6837\u5c31\u4e3a\u201c\u5e73\u5747\u5206\u62102\u4efd\u201d\uff0c\u5177\u5907\u4e86\u6761\u4ef6\uff0c\u8fd9\u65f6\u6bcf\u4efd\u7684\u672c\u6570\u662f\u4e0a\u5c42\u589e\u52a08\u672c\u540e\u7684\u672c\u6570\u6216\u4e0b\u5c42\u53d6\u51fa8\u672c\u540e\u7684\u672c\u6570\uff0e
124\u00f72 = 62\uff08\u672c\uff09 62-8 = 54\uff08\u672c\uff09\u2026\u4e0a\u5c42\u4e66\u6570 62+8 = 70\uff08\u672c\uff09\u2026\u4e0b\u5c42\u4e66\u6570
\u7b54\uff1a\u539f\u6765\u4e0a\u5c42\u670954\u672c\uff0c\u4e0b\u5c42\u670970\u672c\uff0e
14. 14\uff0c11
\u89e3\uff1a\u3010\u601d\u8def\u6216\u89e3\u6cd5\u3011
\u5c0f\u661f\u7528\u53bb4\u652f\u540e\u6240\u5269\u7684\u94c5\u7b14\uff0c\u6bd4\u5c0f\u5170\u7528\u53bb3\u652f\u540e\u6240\u5269\u7684\u94c5\u7b14\u591a2\u652f\uff0c\u6240\u4ee5\uff0c\u5c0f\u661f\u539f\u6709\u7684\u94c5\u7b14\uff0c\u6bd4\u5c0f\u5170\u7528\u53bb3\u652f\u540e\u6240\u5269\u7684\u94c5\u7b14\u591a2+4=6\uff08\u652f\uff09\uff1b\u4ece\u800c\u5c0f\u661f\u539f\u6709\u7684\u94c5\u7b14\u6bd4\u5c0f\u5170\u539f\u6709\u7684\u94c5\u7b14\u591a6-3=3\uff08\u652f\uff09\u3002\u8fd9\u6837\u5229\u7528\u516c\u5f0f\u5373\u53ef\u89e3\u51fa\u3002
[25\uff0b\uff082\uff0b4\uff0d3\uff09]\u00f72
=[25\uff0b3]\u00f72
=28\u00f72
=14\uff08\u652f\uff09
25\uff0d4 = 11\uff08\u652f\uff09
\u7b54\uff1a\u5c0f\u661f\u539f\u6709\u94c5\u7b1414\u652f\uff1b\u5c0f\u5170\u539f\u6709\u94c5\u7b1411\u652f\u3002
15. 1287\uff0c693
\u89e3\uff1a\u7531\u201c\u4ece\u7532\u6570\u51cf\u53bb285\u52a0\u5230\u4e59\u6570\u4e0a\uff0e\u4e59\u6570\u8fd8\u6bd4\u7532\u6570\u5c1124\u201d\u77e5\uff0c\u7532\u6570\u539f\u6765\u6bd4\u4e59\u6570\u591a285\u00d72+24\uff0e\u636e\u6b64\u53ef\u5206\u6b65\u6c42\u51fa\u7ed3\u679c\uff1a
(1980-285\u00d72-24)\u00f72
=1386\u00f72
=693
1980-693=1287
\u7b54\uff1a\u7532\u6570\u662f1287\uff0c\u4e59\u6570\u662f693\uff0e
1、甲的书比乙多9本，比丙多2本，乙、丙共有书 47本。问：甲、乙、丙各有多少本书？
2、明明星期天上街买衣服，花75元钱买了一条裤子和一件上衣，已知上衣比裤子贵15元，明明买上衣花多少元？
3、小梅与张芳今年的年龄和是39岁，小梅比张芳大3岁，张芳今年多少岁？
4、王老师买回83个球，其中篮球是足球的2倍，足球比排球多5个，这三种球各买了多少个？
5、学校做扫除，张娟和陈芳一共擦玻璃31块，又知张娟比陈芳少擦9块，张娟、陈芳各擦玻璃多少块？
6、小兰期末考试时语文和数学平均分是96分，数学比语文多4分，问小兰语文多少分？数学多少分？
7、今年弟弟16岁，哥哥20岁，当两人的年龄和是52时，弟弟多少岁。
8、一个两位数由两个数字组成，两个数字之和是 8 ，两个数字之差是 2，这个数是多少？
9、甲筐里有苹果 30 千克，乙筐里有桔子若干千克，如果从乙筐里取出12千克桔子，苹果就比桔子多10千克，乙筐原有桔子多少千克？
10、甲乙两船共载客623人，若甲船增加34人，乙船少57人，这时两船乘客同样多，甲、乙船原来有乘客多少人？
11、无线电厂、二厂共有工人864人，为了照顾工人就近上班，从一厂调入二厂32名工人，这样一厂工人数还比二厂多48，一厂、二厂原来各有工人多少人？
12、一部书有上、中、下三册，上册比中册贵5角，中册比下册贵7角，这样的四部书共值340角，上、中、下册多少角？
13、两筐苹果共重90千克，如果从第一框中取出6千克，放入第二筐后，两筐的重量相等，两筐苹果原来各多少千克？
14、两个水桶共盛水50千克，如果把第一桶里的水倒出6千克，两个水桶的水就一样多了。第一桶原盛水多少千克？
不清楚难不难。
法规和发挥飞过海
绛旓細3 瑙ｏ細锛1锛夊崰鍦伴潰绉 10脳8 = 80锛坢²锛夛紙2锛夎创鐡风爾闈㈢Н 10脳8 + (10+8)脳2脳1.5 = 80+54 = 134锛坢²锛夛紙3锛夊绉槸 10脳8脳1.5 = 120锛坢³锛4 瑙ｏ細鑱仾鍚冧簡 1脳3/8 = 3/8 (kg)鏄庢槑鍚冧簡 3脳1/8 = 3/8 (kg)浠栦滑鍚冪殑涓鏍峰 ~ 婊℃剰璇烽噰绾...
绛旓細姹傚ぇ瀹跺府鎴戞壘涓浜涘洓骞寸骇鐨勫ゥ鏁伴,甯︾瓟妗,鎴戞兂鑷繁鍋氬仛,鍝ュ摜濮愬鍏崇収涓涓嬨鎷滄墭銆... 姹傚ぇ瀹跺府鎴戞壘涓浜涘洓骞寸骇鐨濂ユ暟棰,甯︾瓟妗,鎴戞兂鑷繁鍋氬仛,鍝ュ摜濮愬鍏崇収涓涓嬨傛嫓鎵樸 灞曞紑 鎴戞潵绛 5涓洖绛 #鐑# 瀛╁瓙涔嬮棿鎵撴灦 鐖舵瘝瑕佷笉瑕佸共棰?3076666 2010-04-03 路 TA鑾峰緱瓒呰繃606涓禐 鐭ラ亾绛斾富 鍥炵瓟閲:74 ...
绛旓細12銆佷笢涓3骞村墠鐨勫勾榫勪笌瑗胯タ4骞鍚庣殑骞撮緞涔嬪拰鏄25宀侊紝涓滀笢3骞村悗鐨勫勾榫勭瓑浜庤タ瑗縧骞村墠鐨勫勾榫勶紝姹備笢涓滀粖骞寸殑骞撮緞鏄紙 锛夛紝瑗胯タ浠婂勾鐨勫勾榫勬槸锛 锛夛紟13銆佸湪涓嬮潰鐨3涓柟妗嗗唴鍒嗗埆濉叆鎭板綋鐨勬暟瀛楋紝鍙互浣垮緱杩3涓暟鐨勫钩鍧囨暟鏄150.閭ｄ箞鎵濉殑3涓暟瀛椾箣鍜屾槸锛 锛夛紟鈻★紝鈻8锛屸枴97 14銆佽帀鑾夊拰鑾庤帋...
绛旓細1銆佷竴鍏辨湁9涓1浣嶆暟锛90涓2浣嶆暟銆傞偅涔堟湁248涓3浣嶆暟銆傛墍浠ュ湪 9+90*2 + 248*3 = 933浣 2銆佹牴鎹鎰忥紝璁綳杈嗗ぇ杞︼紝Y杈嗗皬杞︺傞偅涔 5X + 2Y >= 157锛屾眰10X + 5Y 鐨勬渶灏忓笺傚湪鐩磋鍧愭爣绯婚噷闈綔鍥撅紝鐩寸嚎5X + 2Y = 157锛岄偅瀹冧笂鍗婇儴鍒嗗尯鍩熷氨鏄墍姹傚尯鍩熴傜劧鍚庣敤10X + 5Y =B鐨勭洿绾垮幓鎴彇...
绛旓細璧风爜鍒扮幇鍦ㄤ负姝紝鎴戞槸鍞竴缁欎綘绛旀鐨勫惂锛侊紒锛佹垜鐪熺殑寰堜负闅俱傜涓夛紝鎴戠粰浣犲嚭浜嗛鐩紝浣犱笉浣嗕笉鎰熻阿锛岃繕鍏劧杈遍獋锛岃繖璁╂垜鐩稿綋涓嶇埥锛屾瘯绔燂紝杩閬撻鐩鍦ㄦ垜浠鏍¤鍧涢噷杩樻病鏈変汉浼氥傜鍥涳紝鎶婃偓璧忓垎鎻愰珮涓鐐癸紝姣曠珶锛屽仛涓鍒嗘枃浠惰繃鏉ワ紙鏁板绗﹀彿閭ｄ箞澶氾級锛屼篃瑕佷笉灏戞椂闂达紝浣犱互涓烘垜浠椂闂存槸濂芥氮璐圭殑鍚楋紵锛燂紵
绛旓細1.锛0.09-0.06)/(16-14)=0.03/2 =0.015锛堝厓锛2.57锛9x锛2锛32+4X锛墄锛7 3.璁緓涓烘椂闂 y涓鸿矾绋 z涓洪熷害 鎵浠/35-y/50=1y=350 鎵浠/z-y/50=1 z=350/8 鎵浠=y/z=8灏忔椂 4.绗簩鏉￠暱锛氾紙800锛240锛壝凤紙1锛3/5锛夛紳1400锛堢背锛夌涓鏉￠暱锛1400脳3/5锛840锛堢背锛5....
绛旓細绗竴棰橈細4銆傚洜涓哄幓闄ょ殑2涓鏁存暟鎬诲拰12,鎵浠ユ湁鍙兘鏄11+1,10+2銆傚洜涓哄鏋滄槸9+3锛岄偅涔堜腑闂存暟鍙墿涓4锛5锛6锛7锛8浜嗭紝涓嶅6涓暟銆傚鏋滄槸10+2锛岄偅涔堜腑闂存暟鏈澶у彲鑳藉兼槸4+5+6+7+8+9=39锛屼篃涓嶅銆傞偅涔堝幓闄ょ殑鍙兘鏄11鍜1.鍚屾椂鐢变簬5+6+...+10=45.45-44=1.鎵浠ワ紝杩6涓暟閲岄潰鍙彲鑳...
绛旓細7XX5锛岃繕鏄 7025銆7205銆7605銆7065銆7625銆7265锛屽叚绉嶆儏鍐碉紱涓綅鏄 5鐨勫洓浣嶆暟锛屽彧鏈 6X3= 18涓備釜浣嶆槸 7鐨勫洓浣嶆暟锛屼篃鏄 18涓紝鎬诲叡灏辨湁 36涓傜浜岄 鎶婁釜浣嶆暟鐨 3鐪嬫垚8锛屾妸鍗佷綅鏁扮殑 9鐪嬫垚6锛屼袱浣嶆暟杩炶捣鏉ワ紝灏辨槸鎶 93鐪嬫垚浜68锛屽仛涔樻硶锛岃繖涓涓洜鏁板噺灏戜簡 93-68= 25锛岀畻鍑虹殑缁撴灉涓...
绛旓細璁撅紝涓変汉鐩稿悓鐨勫垎鏁颁负X锛78脳7-80脳5=97+63+91+3X-锛97+63+91+X锛夎В寰梄=73 閭ｄ箞鍙︿竴涓汉鐨勫垎鏁板氨涓80脳5-锛97+63+91+73锛=76 鐢ㄧ畻寮忥細涓冧釜浜虹殑鎬诲垎涓庝簲涓汉鐨勬诲垎涔嬪樊灏辨槸涓変汉鍒嗘暟鐩稿悓鏈绠楃殑鍓╀笅鐨勪袱涓汉鍒嗘暟涔嬪拰锛屼袱涓汉鍒嗘暟鐩稿悓 锛78脳7-80脳5锛/2=73 鍙︿竴涓殑璁＄畻鏂规硶鍜...
绛旓細绗鍥涢锛1涔樹互涓夊垎涔2002鍔犱笂3涔樹互5鍒嗕箣2002鍔犱笂7涔樹互9鍒嗕箣2002鍔犱笂9涔樹互11鍒嗕箣2002 =2002/(1*3)+2002/(3*5)+2002/(7*9)+2002/(9*11)=2002/3(1+1/5+1/21+1/33)=2002/3(1155+231+55+35)/1155 =2002/3*1476/1155 =852.8 绗簲棰橈細12鍒嗕箣1鍔20鍒嗕箣1鍔30鍒嗕箣1鍔42鍒嗕箣...
