小升初奥数题1 小升初奥数题20道给我中等一点点,不要太难,也不要太简单。

\u5c0f\u5347\u521d\u5965\u6570\u9898

\u89e3\uff1a7 4/5 + 77 4/5 +777 4/5 +1/5 X 3 =7 4/5 +1/5 +77 4/5 +1/5 +777 4/5+1/5 =8+78+778 =864 (224 + 1/222 ) X 1/223 =\uff08223+1+ 1/222)\u00d71/223 =\uff08223 +223/222\uff09\u00d7 1/223 =223 \u00d7 1/223 + 223/222 \u00d7 1/223 =1+1/222 =1\u53c8 222\u5206\u4e4b1

\u5de5\u7a0b\u95ee\u9898
1\uff0e\u7532\u4e59\u4e24\u4e2a\u6c34\u7ba1\u5355\u72ec\u5f00\uff0c\u6ce8\u6ee1\u4e00\u6c60\u6c34\uff0c\u5206\u522b\u9700\u898120\u5c0f\u65f6\uff0c16\u5c0f\u65f6.\u4e19\u6c34\u7ba1\u5355\u72ec\u5f00\uff0c\u6392\u4e00\u6c60\u6c34\u898110\u5c0f\u65f6\uff0c\u82e5\u6c34\u6c60\u6ca1\u6c34\uff0c\u540c\u65f6\u6253\u5f00\u7532\u4e59\u4e24\u6c34\u7ba1\uff0c5\u5c0f\u65f6\u540e\uff0c\u518d\u6253\u5f00\u6392\u6c34\u7ba1\u4e19\uff0c\u95ee\u6c34\u6c60\u6ce8\u6ee1\u8fd8\u662f\u8981\u591a\u5c11\u5c0f\u65f6\uff1f

\u89e3\uff1a 1/20+1/16\uff1d9/80\u8868\u793a\u7532\u4e59\u7684\u5de5\u4f5c\u6548\u7387 9/80\u00d75\uff1d45/80\u8868\u793a5\u5c0f\u65f6\u540e\u8fdb\u6c34\u91cf 1-45/80\uff1d35/80\u8868\u793a\u8fd8\u8981\u7684\u8fdb\u6c34\u91cf 35/80\u00f7\uff089/80-1/10\uff09\uff1d35\u8868\u793a\u8fd8\u898135\u5c0f\u65f6\u6ce8\u6ee1
\u7b54\uff1a5\u5c0f\u65f6\u540e\u8fd8\u898135\u5c0f\u65f6\u5c31\u80fd\u5c06\u6c34\u6c60\u6ce8\u6ee1\u3002

2\uff0e\u4fee\u4e00\u6761\u6c34\u6e20\uff0c\u5355\u72ec\u4fee\uff0c\u7532\u961f\u9700\u898120\u5929\u5b8c\u6210\uff0c\u4e59\u961f\u9700\u898130\u5929\u5b8c\u6210\u3002\u5982\u679c\u4e24\u961f\u5408\u4f5c\uff0c\u7531\u4e8e\u5f7c\u6b64\u65bd\u5de5\u6709\u5f71\u54cd\uff0c\u4ed6\u4eec\u7684\u5de5\u4f5c\u6548\u7387\u5c31\u8981\u964d\u4f4e\uff0c\u7532\u961f\u7684\u5de5\u4f5c\u6548\u7387\u662f\u539f\u6765\u7684\u4e94\u5206\u4e4b\u56db\uff0c\u4e59\u961f\u5de5\u4f5c\u6548\u7387\u53ea\u6709\u539f\u6765\u7684\u5341\u5206\u4e4b\u4e5d\u3002\u73b0\u5728\u8ba1\u521216\u5929\u4fee\u5b8c\u8fd9\u6761\u6c34\u6e20\uff0c\u4e14\u8981\u6c42\u4e24\u961f\u5408\u4f5c\u7684\u5929\u6570\u5c3d\u53ef\u80fd\u5c11\uff0c\u90a3\u4e48\u4e24\u961f\u8981\u5408\u4f5c\u51e0\u5929\uff1f

\u89e3\uff1a\u7531\u9898\u610f\u5f97\uff0c\u7532\u7684\u5de5\u6548\u4e3a1/20\uff0c\u4e59\u7684\u5de5\u6548\u4e3a1/30\uff0c\u7532\u4e59\u7684\u5408\u4f5c\u5de5\u6548\u4e3a1/20*4/5+1/30*9/10\uff1d7/100\uff0c\u53ef\u77e5\u7532\u4e59\u5408\u4f5c\u5de5\u6548>\u7532\u7684\u5de5\u6548>\u4e59\u7684\u5de5\u6548\u3002 \u53c8\u56e0\u4e3a\uff0c\u8981\u6c42\u201c\u4e24\u961f\u5408\u4f5c\u7684\u5929\u6570\u5c3d\u53ef\u80fd\u5c11\u201d\uff0c\u6240\u4ee5\u5e94\u8be5\u8ba9\u505a\u7684\u5feb\u7684\u7532\u591a\u505a\uff0c16\u5929\u5185\u5b9e\u5728\u6765\u4e0d\u53ca\u7684\u624d\u5e94\u8be5\u8ba9\u7532\u4e59\u5408\u4f5c\u5b8c\u6210\u3002\u53ea\u6709\u8fd9\u6837\u624d\u80fd\u201c\u4e24\u961f\u5408\u4f5c\u7684\u5929\u6570\u5c3d\u53ef\u80fd\u5c11\u201d\u3002 \u8bbe\u5408\u4f5c\u65f6\u95f4\u4e3ax\u5929\uff0c\u5219\u7532\u72ec\u505a\u65f6\u95f4\u4e3a\uff0816-x\uff09\u5929 1/20*\uff0816-x\uff09+7/100*x\uff1d1 x\uff1d10
\u7b54\uff1a\u7532\u4e59\u6700\u77ed\u5408\u4f5c10\u5929

3\uff0e\u4e00\u4ef6\u5de5\u4f5c\uff0c\u7532\u3001\u4e59\u5408\u505a\u97004\u5c0f\u65f6\u5b8c\u6210\uff0c\u4e59\u3001\u4e19\u5408\u505a\u97005\u5c0f\u65f6\u5b8c\u6210\u3002\u73b0\u5728\u5148\u8bf7\u7532\u3001\u4e19\u5408\u505a2\u5c0f\u65f6\u540e\uff0c\u4f59\u4e0b\u7684\u4e59\u8fd8\u9700\u505a6\u5c0f\u65f6\u5b8c\u6210\u3002\u4e59\u5355\u72ec\u505a\u5b8c\u8fd9\u4ef6\u5de5\u4f5c\u8981\u591a\u5c11\u5c0f\u65f6\uff1f

\u89e3\uff1a \u7531\u9898\u610f\u77e5\uff0c1/4\u8868\u793a\u7532\u4e59\u5408\u4f5c1\u5c0f\u65f6\u7684\u5de5\u4f5c\u91cf\uff0c1/5\u8868\u793a\u4e59\u4e19\u5408\u4f5c1\u5c0f\u65f6\u7684\u5de5\u4f5c\u91cf \uff081/4+1/5\uff09\u00d72\uff1d9/10\u8868\u793a\u7532\u505a\u4e862\u5c0f\u65f6\u3001\u4e59\u505a\u4e864\u5c0f\u65f6\u3001\u4e19\u505a\u4e862\u5c0f\u65f6\u7684\u5de5\u4f5c\u91cf\u3002 \u6839\u636e\u201c\u7532\u3001\u4e19\u5408\u505a2\u5c0f\u65f6\u540e\uff0c\u4f59\u4e0b\u7684\u4e59\u8fd8\u9700\u505a6\u5c0f\u65f6\u5b8c\u6210\u201d\u53ef\u77e5\u7532\u505a2\u5c0f\u65f6\u3001\u4e59\u505a6\u5c0f\u65f6\u3001\u4e19\u505a2\u5c0f\u65f6\u4e00\u5171\u7684\u5de5\u4f5c\u91cf\u4e3a1\u3002 \u6240\u4ee51\uff0d9/10\uff1d1/10\u8868\u793a\u4e59\u505a6-4\uff1d2\u5c0f\u65f6\u7684\u5de5\u4f5c\u91cf\u3002 1/10\u00f72\uff1d1/20\u8868\u793a\u4e59\u7684\u5de5\u4f5c\u6548\u7387\u3002 1\u00f71/20\uff1d20\u5c0f\u65f6\u8868\u793a\u4e59\u5355\u72ec\u5b8c\u6210\u9700\u898120\u5c0f\u65f6\u3002
\u7b54\uff1a\u4e59\u5355\u72ec\u5b8c\u6210\u9700\u898120\u5c0f\u65f6\u3002

4\uff0e\u4e00\u9879\u5de5\u7a0b\uff0c\u7b2c\u4e00\u5929\u7532\u505a\uff0c\u7b2c\u4e8c\u5929\u4e59\u505a\uff0c\u7b2c\u4e09\u5929\u7532\u505a\uff0c\u7b2c\u56db\u5929\u4e59\u505a\uff0c\u8fd9\u6837\u4ea4\u66ff\u8f6e\u6d41\u505a\uff0c\u90a3\u4e48\u6070\u597d\u7528\u6574\u6570\u5929\u5b8c\u5de5\uff1b\u5982\u679c\u7b2c\u4e00\u5929\u4e59\u505a\uff0c\u7b2c\u4e8c\u5929\u7532\u505a\uff0c\u7b2c\u4e09\u5929\u4e59\u505a\uff0c\u7b2c\u56db\u5929\u7532\u505a\uff0c\u8fd9\u6837\u4ea4\u66ff\u8f6e\u6d41\u505a\uff0c\u90a3\u4e48\u5b8c\u5de5\u65f6\u95f4\u8981\u6bd4\u524d\u4e00\u79cd\u591a\u534a\u5929\u3002\u5df2\u77e5\u4e59\u5355\u72ec\u505a\u8fd9\u9879\u5de5\u7a0b\u970017\u5929\u5b8c\u6210\uff0c\u7532\u5355\u72ec\u505a\u8fd9\u9879\u5de5\u7a0b\u8981\u591a\u5c11\u5929\u5b8c\u6210\uff1f

\u89e3\uff1a\u7531\u9898\u610f\u53ef\u77e5 1/\u7532+1/\u4e59+1/\u7532+1/\u4e59+\u2026\u2026+1/\u7532\uff1d1 1/\u4e59+1/\u7532+1/\u4e59+1/\u7532+\u2026\u2026+1/\u4e59+1/\u7532\u00d70.5\uff1d1 \uff081/\u7532\u8868\u793a\u7532\u7684\u5de5\u4f5c\u6548\u7387\u30011/\u4e59\u8868\u793a\u4e59\u7684\u5de5\u4f5c\u6548\u7387\uff0c\u6700\u540e\u7ed3\u675f\u5fc5\u987b\u5982\u4e0a\u6240\u793a\uff0c\u5426\u5219\u7b2c\u4e8c\u79cd\u505a\u6cd5\u5c31\u4e0d\u6bd4\u7b2c\u4e00\u79cd\u591a0.5\u5929\uff09 1/\u7532\uff1d1/\u4e59+1/\u7532\u00d70.5\uff08\u56e0\u4e3a\u524d\u9762\u7684\u5de5\u4f5c\u91cf\u90fd\u76f8\u7b49\uff09 \u5f97\u52301/\u7532\uff1d1/\u4e59\u00d72 \u53c8\u56e0\u4e3a1/\u4e59\uff1d1/17 \u6240\u4ee51/\u7532\uff1d2/17\uff0c\u7532\u7b49\u4e8e17\u00f72\uff1d8.5\u5929

5\uff0e\u5e08\u5f92\u4fe9\u4eba\u52a0\u5de5\u540c\u6837\u591a\u7684\u96f6\u4ef6\u3002\u5f53\u5e08\u5085\u5b8c\u6210\u4e861/2\u65f6\uff0c\u5f92\u5f1f\u5b8c\u6210\u4e86120\u4e2a\u3002\u5f53\u5e08\u5085\u5b8c\u6210\u4e86\u4efb\u52a1\u65f6\uff0c\u5f92\u5f1f\u5b8c\u6210\u4e864/5\u8fd9\u6279\u96f6\u4ef6\u5171\u6709\u591a\u5c11\u4e2a\uff1f

\u7b54\u6848\u4e3a300\u4e2a 120\u00f7\uff084/5\u00f72\uff09\uff1d300\u4e2a \u53ef\u4ee5\u8fd9\u6837\u60f3\uff1a\u5e08\u5085\u7b2c\u4e00\u6b21\u5b8c\u6210\u4e861/2\uff0c\u7b2c\u4e8c\u6b21\u4e5f\u662f1/2\uff0c\u4e24\u6b21\u4e00\u5171\u5168\u90e8\u5b8c\u5de5\uff0c\u90a3\u4e48\u5f92\u5f1f\u7b2c\u4e8c\u6b21\u540e\u5171\u5b8c\u6210\u4e864/5\uff0c\u53ef\u4ee5\u63a8\u7b97\u51fa\u7b2c\u4e00\u6b21\u5b8c\u6210\u4e864/5\u7684\u4e00\u534a\u662f2/5\uff0c\u521a\u597d\u662f120\u4e2a\u3002

6\uff0e\u4e00\u6279\u6811\u82d7\uff0c\u5982\u679c\u5206\u7ed9\u7537\u5973\u751f\u683d\uff0c\u5e73\u5747\u6bcf\u4eba\u683d6\u68f5\uff1b\u5982\u679c\u5355\u4efd\u7ed9\u5973\u751f\u683d\uff0c\u5e73\u5747\u6bcf\u4eba\u683d10\u68f5\u3002\u5355\u4efd\u7ed9\u7537\u751f\u683d\uff0c\u5e73\u5747\u6bcf\u4eba\u683d\u51e0\u68f5\uff1f

\u7b54\u6848\u662f15\u68f5 \u7b97\u5f0f\uff1a1\u00f7\uff081/6-1/10\uff09\uff1d15\u68f5

7\uff0e\u4e00\u4e2a\u6c60\u4e0a\u88c5\u67093\u6839\u6c34\u7ba1\u3002\u7532\u7ba1\u4e3a\u8fdb\u6c34\u7ba1\uff0c\u4e59\u7ba1\u4e3a\u51fa\u6c34\u7ba1\uff0c20\u5206\u949f\u53ef\u5c06\u6ee1\u6c60\u6c34\u653e\u5b8c\uff0c\u4e19\u7ba1\u4e5f\u662f\u51fa\u6c34\u7ba1\uff0c30\u5206\u949f\u53ef\u5c06\u6ee1\u6c60\u6c34\u653e\u5b8c\u3002\u73b0\u5728\u5148\u6253\u5f00\u7532\u7ba1\uff0c\u5f53\u6c34\u6c60\u6c34\u521a\u6ea2\u51fa\u65f6\uff0c\u6253\u5f00\u4e59,\u4e19\u4e24\u7ba1\u7528\u4e8618\u5206\u949f\u653e\u5b8c\uff0c\u5f53\u6253\u5f00\u7532\u7ba1\u6ce8\u6ee1\u6c34\u662f\uff0c\u518d\u6253\u5f00\u4e59\u7ba1\uff0c\u800c\u4e0d\u5f00\u4e19\u7ba1\uff0c\u591a\u5c11\u5206\u949f\u5c06\u6c34\u653e\u5b8c\uff1f

\u7b54\u684845\u5206\u949f\u3002 1\u00f7\uff081/20+1/30\uff09\uff1d12 \u8868\u793a\u4e59\u4e19\u5408\u4f5c\u5c06\u6ee1\u6c60\u6c34\u653e\u5b8c\u9700\u8981\u7684\u5206\u949f\u6570\u3002 1/12*\uff0818-12\uff09\uff1d1/12*6\uff1d1/2 \u8868\u793a\u4e59\u4e19\u5408\u4f5c\u5c06\u6f2b\u6c60\u6c34\u653e\u5b8c\u540e\uff0c\u8fd8\u591a\u653e\u4e866\u5206\u949f\u7684\u6c34\uff0c\u4e5f\u5c31\u662f\u753218\u5206\u949f\u8fdb\u7684\u6c34\u3002 1/2\u00f718\uff1d1/36 \u8868\u793a\u7532\u6bcf\u5206\u949f\u8fdb\u6c34 \u6700\u540e\u5c31\u662f1\u00f7\uff081/20-1/36\uff09\uff1d45\u5206\u949f\u3002

8\uff0e\u67d0\u5de5\u7a0b\u961f\u9700\u8981\u5728\u89c4\u5b9a\u65e5\u671f\u5185\u5b8c\u6210\uff0c\u82e5\u7531\u7532\u961f\u53bb\u505a\uff0c\u6070\u597d\u5982\u671f\u5b8c\u6210\uff0c\u82e5\u4e59\u961f\u53bb\u505a\uff0c\u8981\u8d85\u8fc7\u89c4\u5b9a\u65e5\u671f\u4e09\u5929\u5b8c\u6210\uff0c\u82e5\u5148\u7531\u7532\u4e59\u5408\u4f5c\u4e8c\u5929\uff0c\u518d\u7531\u4e59\u961f\u5355\u72ec\u505a\uff0c\u6070\u597d\u5982\u671f\u5b8c\u6210\uff0c\u95ee\u89c4\u5b9a\u65e5\u671f\u4e3a\u51e0\u5929\uff1f

\u7b54\u6848\u4e3a6\u5929 \u89e3\uff1a \u7531\u201c\u82e5\u4e59\u961f\u53bb\u505a\uff0c\u8981\u8d85\u8fc7\u89c4\u5b9a\u65e5\u671f\u4e09\u5929\u5b8c\u6210\uff0c\u82e5\u5148\u7531\u7532\u4e59\u5408\u4f5c\u4e8c\u5929\uff0c\u518d\u7531\u4e59\u961f\u5355\u72ec\u505a\uff0c\u6070\u597d\u5982\u671f\u5b8c\u6210\uff0c\u201d\u53ef\u77e5\uff1a \u4e59\u505a3\u5929\u7684\u5de5\u4f5c\u91cf\uff1d\u75322\u5929\u7684\u5de5\u4f5c\u91cf \u5373\uff1a\u7532\u4e59\u7684\u5de5\u4f5c\u6548\u7387\u6bd4\u662f3\uff1a2 \u7532\u3001\u4e59\u5206\u522b\u505a\u5168\u90e8\u7684\u7684\u5de5\u4f5c\u65f6\u95f4\u6bd4\u662f2\uff1a3 \u65f6\u95f4\u6bd4\u7684\u5dee\u662f1\u4efd \u5b9e\u9645\u65f6\u95f4\u7684\u5dee\u662f3\u5929 \u6240\u4ee53\u00f7\uff083-2\uff09\u00d72\uff1d6\u5929\uff0c\u5c31\u662f\u7532\u7684\u65f6\u95f4\uff0c\u4e5f\u5c31\u662f\u89c4\u5b9a\u65e5\u671f \u65b9\u7a0b\u65b9\u6cd5\uff1a [1/x+1/\uff08x+2\uff09]\u00d72+1/\uff08x+2\uff09\u00d7\uff08x-2\uff09\uff1d1 \u89e3\u5f97x\uff1d6

9\uff0e\u4e24\u6839\u540c\u6837\u957f\u7684\u8721\u70db\uff0c\u70b9\u5b8c\u4e00\u6839\u7c97\u8721\u70db\u89812\u5c0f\u65f6\uff0c\u800c\u70b9\u5b8c\u4e00\u6839\u7ec6\u8721\u70db\u89811\u5c0f\u65f6\uff0c\u4e00\u5929\u665a\u4e0a\u505c\u7535\uff0c\u5c0f\u82b3\u540c\u65f6\u70b9\u71c3\u4e86\u8fd9\u4e24\u6839\u8721\u70db\u770b\u4e66\uff0c\u82e5\u5e72\u5206\u949f\u540e\u6765\u70b9\u4e86\uff0c\u5c0f\u82b3\u5c06\u4e24\u652f\u8721\u70db\u540c\u65f6\u7184\u706d\uff0c\u53d1\u73b0\u7c97\u8721\u70db\u7684\u957f\u662f\u7ec6\u8721\u70db\u76842\u500d\uff0c\u95ee\uff1a\u505c\u7535\u591a\u5c11\u5206\u949f\uff1f

\u7b54\u6848\u4e3a40\u5206\u949f\u3002 \u89e3\uff1a\u8bbe\u505c\u7535\u4e86x\u5206\u949f \u6839\u636e\u9898\u610f\u5217\u65b9\u7a0b 1-1/120*x\uff1d\uff081-1/60*x\uff09*2 \u89e3\u5f97x\uff1d40

\u4e8c\uff0e\u9e21\u5154\u540c\u7b3c\u95ee\u9898

1\uff0e\u9e21\u4e0e\u5154\u5171100\u53ea,\u9e21\u7684\u817f\u6570\u6bd4\u5154\u7684\u817f\u6570\u5c1128\u6761,\u95ee\u9e21\u4e0e\u5154\u5404\u6709\u51e0\u53ea?

\u89e3\uff1a 4*100\uff1d400\uff0c400-0\uff1d400 \u5047\u8bbe\u90fd\u662f\u5154\u5b50\uff0c\u4e00\u5171\u6709400\u53ea\u5154\u5b50\u7684\u811a\uff0c\u90a3\u4e48\u9e21\u7684\u811a\u4e3a0\u53ea\uff0c\u9e21\u7684\u811a\u6bd4\u5154\u5b50\u7684\u811a\u5c11400\u53ea\u3002 400-28\uff1d372 \u5b9e\u9645\u9e21\u7684\u811a\u6570\u6bd4\u5154\u5b50\u7684\u811a\u6570\u53ea\u5c1128\u53ea\uff0c\u76f8\u5dee372\u53ea\uff0c\u8fd9\u662f\u4e3a\u4ec0\u4e48\uff1f 4+2\uff1d6 \u8fd9\u662f\u56e0\u4e3a\u53ea\u8981\u5c06\u4e00\u53ea\u5154\u5b50\u6362\u6210\u4e00\u53ea\u9e21\uff0c\u5154\u5b50\u7684\u603b\u811a\u6570\u5c31\u4f1a\u51cf\u5c114\u53ea\uff08\u4ece400\u53ea\u53d8\u4e3a396\u53ea\uff09\uff0c\u9e21\u7684\u603b\u811a\u6570\u5c31\u4f1a\u589e\u52a02\u53ea\uff08\u4ece0\u53ea\u52302\u53ea\uff09\uff0c\u5b83\u4eec\u7684\u76f8\u5dee\u6570\u5c31\u4f1a\u5c114+2\uff1d6\u53ea\uff08\u4e5f\u5c31\u662f\u539f\u6765\u7684\u76f8\u5dee\u6570\u662f400-0\uff1d400\uff0c\u73b0\u5728\u7684\u76f8\u5dee\u6570\u4e3a396-2\uff1d394\uff0c\u76f8\u5dee\u6570\u5c11\u4e86400-394\uff1d6\uff09 372\u00f76\uff1d62 \u8868\u793a\u9e21\u7684\u53ea\u6570\uff0c\u4e5f\u5c31\u662f\u8bf4\u56e0\u4e3a\u5047\u8bbe\u4e2d\u7684100\u53ea\u5154\u5b50\u4e2d\u670962\u53ea\u6539\u4e3a\u4e86\u9e21\uff0c\u6240\u4ee5\u811a\u7684\u76f8\u5dee\u6570\u4ece400\u6539\u4e3a28\uff0c\u4e00\u5171\u6539\u4e86372\u53ea 100-62\uff1d38\u8868\u793a\u5154\u7684\u53ea\u6570

\u4e09\uff0e\u6570\u5b57\u6570\u4f4d\u95ee\u9898

1\uff0e\u628a1\u81f32005\u8fd92005\u4e2a\u81ea\u7136\u6570\u4f9d\u6b21\u5199\u4e0b\u6765\u5f97\u5230\u4e00\u4e2a\u591a\u4f4d\u6570123456789.....2005,\u8fd9\u4e2a\u591a\u4f4d\u6570\u9664\u4ee59\u4f59\u6570\u662f\u591a\u5c11?

\u89e3\uff1a \u9996\u5148\u7814\u7a76\u80fd\u88ab9\u6574\u9664\u7684\u6570\u7684\u7279\u70b9\uff1a\u5982\u679c\u5404\u4e2a\u6570\u4f4d\u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u80fd\u88ab9\u6574\u9664\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u4e5f\u80fd\u88ab9\u6574\u9664\uff1b\u5982\u679c\u5404\u4e2a\u4f4d\u6570\u5b57\u4e4b\u548c\u4e0d\u80fd\u88ab9\u6574\u9664\uff0c\u90a3\u4e48\u5f97\u7684\u4f59\u6570\u5c31\u662f\u8fd9\u4e2a\u6570\u9664\u4ee59\u5f97\u7684\u4f59\u6570\u3002 \u89e3\u9898\uff1a1+2+3+4+5+6+7+8+9=45\uff1b45\u80fd\u88ab9\u6574\u9664 \u4f9d\u6b21\u7c7b\u63a8\uff1a1~1999\u8fd9\u4e9b\u6570\u7684\u4e2a\u4f4d\u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u53ef\u4ee5\u88ab9\u6574\u9664 10~19\uff0c20~29\u2026\u202690~99\u8fd9\u4e9b\u6570\u4e2d\u5341\u4f4d\u4e0a\u7684\u6570\u5b57\u90fd\u51fa\u73b0\u4e8610\u6b21\uff0c\u90a3\u4e48\u5341\u4f4d\u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u5c31\u662f10+20+30+\u2026\u2026+90=450 \u5b83\u6709\u80fd\u88ab9\u6574\u9664 \u540c\u6837\u7684\u9053\u7406\uff0c100~900 \u767e\u4f4d\u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u4e3a4500 \u540c\u6837\u88ab9\u6574\u9664 \u4e5f\u5c31\u662f\u8bf41~999\u8fd9\u4e9b\u8fde\u7eed\u7684\u81ea\u7136\u6570\u7684\u5404\u4e2a\u4f4d\u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u53ef\u4ee5\u88ab9\u6574\u9664\uff1b \u540c\u6837\u7684\u9053\u7406\uff1a1000~1999\u8fd9\u4e9b\u8fde\u7eed\u7684\u81ea\u7136\u6570\u4e2d\u767e\u4f4d\u3001\u5341\u4f4d\u3001\u4e2a\u4f4d \u4e0a\u7684\u6570\u5b57\u4e4b\u548c\u53ef\u4ee5\u88ab9\u6574\u9664\uff08\u8fd9\u91cc\u5343\u4f4d\u4e0a\u7684\u201c1\u201d\u8fd8\u6ca1\u8003\u8651\uff0c\u540c\u65f6\u8fd9\u91cc\u6211\u4eec\u5c11200020012002200320042005 \u4ece1000~1999\u5343\u4f4d\u4e0a\u4e00\u5171999\u4e2a\u201c1\u201d\u7684\u548c\u662f999\uff0c\u4e5f\u80fd\u6574\u9664\uff1b 200020012002200320042005\u7684\u5404\u4f4d\u6570\u5b57\u4e4b\u548c\u662f27\uff0c\u4e5f\u521a\u597d\u6574\u9664\u3002 \u6700\u540e\u7b54\u6848\u4e3a\u4f59\u6570\u4e3a0\u3002

2\uff0eA\u548cB\u662f\u5c0f\u4e8e100\u7684\u4e24\u4e2a\u975e\u96f6\u7684\u4e0d\u540c\u81ea\u7136\u6570\u3002\u6c42A+B\u5206\u4e4bA-B\u7684\u6700\u5c0f\u503c...

\u89e3\uff1a (A-B)/(A+B) = (A+B - 2B)/(A+B) = 1 - 2 * B/(A+B) \u524d\u9762\u7684 1 \u4e0d\u4f1a\u53d8\u4e86\uff0c\u53ea\u9700\u6c42\u540e\u9762\u7684\u6700\u5c0f\u503c\uff0c\u6b64\u65f6 (A-B)/(A+B) \u6700\u5927\u3002 \u5bf9\u4e8e B / (A+B) \u53d6\u6700\u5c0f\u65f6\uff0c(A+B)/B \u53d6\u6700\u5927\uff0c \u95ee\u9898\u8f6c\u5316\u4e3a\u6c42 (A+B)/B \u7684\u6700\u5927\u503c\u3002 (A+B)/B = 1 + A/B \uff0c\u6700\u5927\u7684\u53ef\u80fd\u6027\u662f A/B = 99/1 (A+B)/B = 100 (A-B)/(A+B) \u7684\u6700\u5927\u503c\u662f\uff1a 98 / 100

3\uff0e\u5df2\u77e5A.B.C\u90fd\u662f\u975e0\u81ea\u7136\u6570,A/2 + B/4 + C/16\u7684\u8fd1\u4f3c\u503c\u5e026.4,\u90a3\u4e48\u5b83\u7684\u51c6\u786e\u503c\u662f\u591a\u5c11?

\u7b54\u6848\u4e3a6.375\u62166.4375 \u56e0\u4e3aA/2 + B/4 + C/16\uff1d8A+4B+C/16\u22486.4\uff0c \u6240\u4ee58A+4B+C\u2248102.4\uff0c\u7531\u4e8eA\u3001B\u3001C\u4e3a\u975e0\u81ea\u7136\u6570\uff0c\u56e0\u6b648A+4B+C\u4e3a\u4e00\u4e2a\u6574\u6570\uff0c\u53ef\u80fd\u662f102\uff0c\u4e5f\u6709\u53ef\u80fd\u662f103\u3002 \u5f53\u662f102\u65f6\uff0c102/16\uff1d6.375 \u5f53\u662f103\u65f6\uff0c103/16\uff1d6.4375

\u56db\uff0e\u6392\u5217\u7ec4\u5408\u95ee\u9898

1\uff0e\u6709\u4e94\u5bf9\u592b\u5987\u56f4\u6210\u4e00\u5708\uff0c\u4f7f\u6bcf\u4e00\u5bf9\u592b\u5987\u7684\u592b\u59bb\u4e8c\u4eba\u52a8\u76f8\u90bb\u7684\u6392\u6cd5\u6709\uff08 \uff09 A 768\u79cd B 32\u79cd C 24\u79cd D 2\u768410\u6b21\u65b9\u4e2d

\u89e3\uff1a \u6839\u636e\u4e58\u6cd5\u539f\u7406\uff0c\u5206\u4e24\u6b65\uff1a \u7b2c\u4e00\u6b65\u662f\u628a5\u5bf9\u592b\u59bb\u770b\u4f5c5\u4e2a\u6574\u4f53\uff0c\u8fdb\u884c\u6392\u5217\u67095\u00d74\u00d73\u00d72\u00d71\uff1d120\u79cd\u4e0d\u540c\u7684\u6392\u6cd5\uff0c\u4f46\u662f\u56e0\u4e3a\u662f\u56f4\u6210\u4e00\u4e2a\u9996\u5c3e\u76f8\u63a5\u7684\u5708\uff0c\u5c31\u4f1a\u4ea7\u751f5\u4e2a5\u4e2a\u91cd\u590d\uff0c\u56e0\u6b64\u5b9e\u9645\u6392\u6cd5\u53ea\u6709120\u00f75\uff1d24\u79cd\u3002 \u7b2c\u4e8c\u6b65\u6bcf\u4e00\u5bf9\u592b\u59bb\u4e4b\u95f4\u53c8\u53ef\u4ee5\u76f8\u4e92\u6362\u4f4d\u7f6e\uff0c\u4e5f\u5c31\u662f\u8bf4\u6bcf\u4e00\u5bf9\u592b\u59bb\u5747\u67092\u79cd\u6392\u6cd5\uff0c\u603b\u5171\u53c82\u00d72\u00d72\u00d72\u00d72\uff1d32\u79cd \u7efc\u5408\u4e24\u6b65\uff0c\u5c31\u670924\u00d732\uff1d768\u79cd\u3002

2 \u82e5\u628a\u82f1\u8bed\u5355\u8bcdhello\u7684\u5b57\u6bcd\u5199\u9519\u4e86,\u5219\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\u5171\u6709 ( ) A 119\u79cd B 36\u79cd C 59\u79cd D 48\u79cd

\u89e3\uff1a 5\u5168\u6392\u52175*4*3*2*1=120 \u6709\u4e24\u4e2al\u6240\u4ee5120/2=60 \u539f\u6765\u6709\u4e00\u79cd\u6b63\u786e\u7684\u6240\u4ee560-1=59

\u4e94\uff0e\u5bb9\u65a5\u539f\u7406\u95ee\u9898

1\uff0e \u6709100\u79cd\u8d64\u8d2b.\u5176\u4e2d\u542b\u9499\u7684\u670968\u79cd,\u542b\u94c1\u7684\u670943\u79cd,\u90a3\u4e48,\u540c\u65f6\u542b\u9499\u548c\u94c1\u7684\u98df\u54c1\u79cd\u7c7b\u7684\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c\u5206\u522b\u662f( ) A 43,25 B 32,25 C32,15 D 43,11

\u89e3\uff1a\u6839\u636e\u5bb9\u65a5\u539f\u7406\u6700\u5c0f\u503c68+43-100\uff1d11 \u6700\u5927\u503c\u5c31\u662f\u542b\u94c1\u7684\u670943\u79cd

2\uff0e\u5728\u591a\u5143\u667a\u80fd\u5927\u8d5b\u7684\u51b3\u8d5b\u4e2d\u53ea\u6709\u4e09\u9053\u9898.\u5df2\u77e5:(1)\u67d0\u682125\u540d\u5b66\u751f\u53c2\u52a0\u7ade\u8d5b,\u6bcf\u4e2a\u5b66\u751f\u81f3\u5c11\u89e3\u51fa\u4e00\u9053\u9898;(2)\u5728\u6240\u6709\u6ca1\u6709\u89e3\u51fa\u7b2c\u4e00\u9898\u7684\u5b66\u751f\u4e2d,\u89e3\u51fa\u7b2c\u4e8c\u9898\u7684\u4eba\u6570\u662f\u89e3\u51fa\u7b2c\u4e09\u9898\u7684\u4eba\u6570\u76842\u500d:(3)\u53ea\u89e3\u51fa\u7b2c\u4e00\u9898\u7684\u5b66\u751f\u6bd4\u4f59\u4e0b\u7684\u5b66\u751f\u4e2d\u89e3\u51fa\u7b2c\u4e00\u9898\u7684\u4eba\u6570\u591a1\u4eba;(4)\u53ea\u89e3\u51fa\u4e00\u9053\u9898\u7684\u5b66\u751f\u4e2d,\u6709\u4e00\u534a\u6ca1\u6709\u89e3\u51fa\u7b2c\u4e00\u9898,\u90a3\u4e48\u53ea\u89e3\u51fa\u7b2c\u4e8c\u9898\u7684\u5b66\u751f\u4eba\u6570\u662f( ) A\uff0c5 B\uff0c6 C\uff0c7 D\uff0c8

\u89e3\uff1a\u6839\u636e\u201c\u6bcf\u4e2a\u4eba\u81f3\u5c11\u7b54\u51fa\u4e09\u9898\u4e2d\u7684\u4e00\u9053\u9898\u201d\u53ef\u77e5\u7b54\u9898\u60c5\u51b5\u5206\u4e3a7\u7c7b\uff1a\u53ea\u7b54\u7b2c1\u9898\uff0c\u53ea\u7b54\u7b2c2\u9898\uff0c\u53ea\u7b54\u7b2c3\u9898\uff0c\u53ea\u7b54\u7b2c1\u30012\u9898\uff0c\u53ea\u7b54\u7b2c1\u30013\u9898\uff0c\u53ea\u7b542\u30013\u9898\uff0c\u7b541\u30012\u30013\u9898\u3002 \u5206\u522b\u8bbe\u5404\u7c7b\u7684\u4eba\u6570\u4e3aa1\u3001a2\u3001a3\u3001a12\u3001a13\u3001a23\u3001a123 \u7531\uff081\uff09\u77e5\uff1aa1+a2+a3+a12+a13+a23+a123\uff1d25\u2026\u2460 \u7531\uff082\uff09\u77e5\uff1aa2+a23\uff1d\uff08a3+ a23\uff09\u00d72\u2026\u2026\u2461 \u7531\uff083\uff09\u77e5\uff1aa12+a13+a123\uff1da1\uff0d1\u2026\u2026\u2462 \u7531\uff084\uff09\u77e5\uff1aa1\uff1da2+a3\u2026\u2026\u2463 \u518d\u7531\u2461\u5f97a23\uff1da2\uff0da3\u00d72\u2026\u2026\u2464 \u518d\u7531\u2462\u2463\u5f97a12+a13+a123\uff1da2+a3\uff0d1\u2465 \u7136\u540e\u5c06\u2463\u2464\u2465\u4ee3\u5165\u2460\u4e2d\uff0c\u6574\u7406\u5f97\u5230 a2\u00d74+a3\uff1d26 \u7531\u4e8ea2\u3001a3\u5747\u8868\u793a\u4eba\u6570\uff0c\u53ef\u4ee5\u6c42\u51fa\u5b83\u4eec\u7684\u6574\u6570\u89e3\uff1a \u5f53a2\uff1d6\u30015\u30014\u30013\u30012\u30011\u65f6\uff0ca3\uff1d2\u30016\u300110\u300114\u300118\u300122 \u53c8\u6839\u636ea23\uff1da2\uff0da3\u00d72\u2026\u2026\u2464\u53ef\u77e5\uff1aa2>a3 \u56e0\u6b64\uff0c\u7b26\u5408\u6761\u4ef6\u7684\u53ea\u6709a2\uff1d6\uff0ca3\uff1d2\u3002 \u7136\u540e\u53ef\u4ee5\u63a8\u51faa1\uff1d8\uff0ca12+a13+a123\uff1d7\uff0ca23\uff1d2\uff0c\u603b\u4eba\u6570\uff1d8+6+2+7+2\uff1d25\uff0c\u68c0\u9a8c\u6240\u6709\u6761\u4ef6\u5747\u7b26\u3002 \u6545\u53ea\u89e3\u51fa\u7b2c\u4e8c\u9898\u7684\u5b66\u751f\u4eba\u6570a2\uff1d6\u4eba\u3002

6/7-分数=2/3+分数
两边同时加上该分数,6/7-分数+分数=2/3+分数+分数
6/7=2/3+2个该分数
两边同时减去2/3,6/7-2/3=2/3+2个该分数-2/3
2个该分数=6/7-2/3=18/21-14/21=4/21
两边同时除以2,该分数=2/21
那么这个结果=6/7-2/21=16/21

(7分之6-3分之2)÷2
=21分之4÷2
=21分之2
你好,本题已解答,如果满意
请点右上角“采纳答案”。

  • 灏忓崌鍒濆ゥ鏁伴鍙婄瓟妗:鐗涘悆鑽
    绛旓細鐗涘悆鑽夛細(楂樼瓑闅惧害)涓姘村簱鍘熸湁瀛樻按閲忎竴瀹氾紝娌虫按姣忓ぉ鍧囧寑鍏ュ簱.5鍙版娊姘存満杩炵画20澶╁彲鎶藉共;6鍙板悓鏍风殑鎶芥按鏈鸿繛缁15澶╁彲鎶藉共.鑻ヨ姹6澶╂娊骞诧紝闇瑕佸灏戝彴鍚屾牱鐨勬娊姘存満?鐗涘悆鑽夌瓟妗堬細姘村簱鍘熸湁鐨勬按涓20澶╂祦鍏ユ按鍙緵澶氬皯鍙版娊姘存満鎶1澶?20脳5=100(鍙)銆傛按搴撳師鏈夌殑姘翠笌15澶╂祦鍏ョ殑姘村彲渚涘灏戝彴鎶芥按鏈烘娊1澶?
  • 姹灏忓崌鍒甯歌濂ユ暟棰
    绛旓細浜屻佽В绛斾笅鍒楀悇棰橈紙姣忛10鍒嗭紝鍏40鍒嗭紝瑕佹眰鍐欏嚭绠瑕佽繃绋嬶級9.鍙冲浘涓湁5涓敱4涓1x1鐨勫皬姝f柟鏍肩粍鎴愮殑涓嶅悓褰㈢姸鐨勭‖绾告澘銆傞棶鑳界敤杩5涓‖绾告澘鎷兼垚鍙冲浘涓4x5鐨勯暱鏂瑰舰鍚楋紵濡傛灉鑳借鐢诲嚭涓绉嶆嫾娉曪紱濡傛灉涓嶈兘璇风畝杩扮悊鐢便備笉鍙互銆傝В锛氬闀挎柟褰㈤粦鐧介棿闅旀煋鑹诧紝鍏辨湁10榛10鐧姐傞偅5涓皬姝f牸纭焊鏉匡紝鈥淟鈥濆瀷...
  • 灏忓崌鍒濆ゥ鏁伴鍙婄瓟妗:鐐硅湣鐑
    绛旓細浠ヤ笅鏄 涓哄ぇ瀹舵暣鐞嗙殑鍏充簬灏忓崌鍒濆ゥ鏁伴鍙婄瓟妗:鐐硅湣鐑涚殑鏂囩珷锛屼緵澶у瀛︿範鍙傝冿紒鏈変袱鏀矖缁嗕笉鍚岀殑铚$儧,缁嗚湣鐑涗箣闀挎槸绮楄湣鐑涗箣闀跨殑2鍊,缁嗚湣鐑涚偣瀹岄渶涓灏忔椂,绮楄湣鐑涚偣瀹岄渶涓ゅ皬鏃.鏈変竴娆″仠鐢,灏嗚繖涓ゆ敮铚$儧鍚屾椂鐐圭噧,鏉ョ數鏃,鍙戠幇涓ゆ敮铚$儧鎵鍓╀笅鐨勯暱搴︿竴鏍,闂仠鐢靛灏戞椂闂?绛旀涓庤В鏋愶細璁撅細鍋滅數X灏忔椂锛岀粏...
  • 灏忓崌鍒濇暟瀛﹂,閲嶇偣瑕佽冪殑缁忓吀濂ユ暟棰!涓瀹氳鏄粡鍏,鏈濂芥槸鐪熼鍝!浜烘暀鐗...
    绛旓細灏忓崌鍒濇暟瀛﹂,閲嶇偣瑕佽冪殑缁忓吀濂ユ暟棰!涓瀹氳鏄粡鍏,鏈濂芥槸鐪熼鍝!浜烘暀鐗堢殑鍝!鏈濂芥槸鍗楀厖鎴栨垚閮戒竷.鍥.涔. 5涓洖绛 #鐑# 鏈夊摢浜涜法鐣屸滃弻濂モ濈殑杩愬姩鍛? 鍜猻鏋 2011-03-27 鐭ラ亾绛斾富 鍥炵瓟閲:31 閲囩撼鐜:0% 甯姪鐨勪汉:8.3涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 1. 鐢层佷箼銆佷笝涓変汉鍦ˋ銆...
  • 杩欐槸灏忓崌鍒鐨濂ユ暟棰鎵剧瓑閲忓叧绯
    绛旓細1瑙h澶╂暟涓簒x4x+24=6x-8 2x=32 x=16 4脳16+24=88涓瓟濡堝涔颁簡88涓瀛愬悆浜16澶
  • 灏忓崌鍒,濂ユ暟棰樼洰鏈夊摢浜(璇峰啓鍑洪鐩)
    绛旓細10銆佷竴閬鏁板棰,鍏ㄧ彮45浜哄仛姝g‘,5浜哄仛閿,姝g‘鐜囨槸( )%銆11銆佺敳鏁板垎瑙h川鍥犳暟鏄2脳2脳3,2CY鍨嬮娇杞车澶栧舰鍙婂畨瑁呭昂瀵镐箼鏁板垎瑙h川鍥犳暟鏄2脳3脳7,閭d箞,鐢层佷箼涓ゆ暟鐨勬渶灏忓叕鍊嶆暟鏄( ),鏈澶у叕绾︽暟鏄( )銆12銆佷竴涓瓑鑵颁笁瑙掑舰涓夎竟闀垮害涔嬫瘮3鈭5鈭5,鍛ㄩ暱鏄52鍘樼背,杩欎釜绛夎叞涓夎褰㈠簳杈归暱鏄( )鍘樼背銆13銆佷竴涓...
  • 鎬ラ渶20閬灏忓崌鍒濆ゥ鏁伴,瑕佸甫绛旀鐨,璋㈣阿!
    绛旓細鎬ラ渶20閬灏忓崌鍒濆ゥ鏁伴,瑕佸甫绛旀鐨,璋㈣阿! 灏忓崌鍒濈殑,鍒お闅!... 灏忓崌鍒濈殑,鍒お闅! 灞曞紑  鎴戞潵绛 1涓洖绛 #鐑# 缃戞枃璐ㄩ噺鏄笉鏄笅闄嶄簡?a1766535 2009-07-29 路 TA鑾峰緱瓒呰繃8038涓禐 鐭ラ亾灏忔湁寤烘爲绛斾富 鍥炵瓟閲:268 閲囩撼鐜:0% 甯姪鐨勪汉:0 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 1...
  • 灏忓灏忓崌鍒濆ゥ鏁伴涓鏋,鍦ㄧ嚎绛,鎬!
    绛旓細姣忓崈鍏嬭嫻鏋滅殑杩愯垂涓猴細1鍚紳1000鍗冨厠 1.5脳400梅1000锛0.6锛堝厓锛夋瘡鍗冨厠鑻规灉鐨勬垚鏈环锛1.2锛0.6锛1.8锛堝厓锛夌敱浜庡湪杩愯緭鍙婇攢鍞繃绋嬩腑鐨勬崯鑰椾负10锛咃紝姣忓崈鍏嬭嫻鏋滅殑鎴愭湰浠峰鍔犱负锛1.8梅锛1锛10锛咃級锛1.8梅90锛 锛2锛堝厓锛夊晢搴楄瀹炵幇15锛呯殑鍒╂鼎鐜囷紝闆跺敭浠峰氨鏄瘡鍗冨厠鑻规灉鐨勬垚鏈环鍐嶅姞涓婃垚鏈环鐨...
  • 灏忓崌鍒濆ゥ鏁伴20閬撶粰鎴戜腑绛変竴鐐圭偣,涓嶈澶毦,涔熶笉瑕佸お绠鍗曘
    绛旓細灏忓崌鍒濆ゥ鏁伴20閬撶粰鎴戜腑绛変竴鐐圭偣,涓嶈澶毦,涔熶笉瑕佸お绠鍗曘 20 濂藉績浜哄晩,瑕佽В鏋愮瓟妗,缁堜簬瑕佺殑鏄В鏋... 濂藉績浜哄晩,瑕佽В鏋愮瓟妗,缁堜簬瑕佺殑鏄В鏋 灞曞紑 2涓洖绛 #鐑# 鑱屽満涓婂彈濮斿眻瑕佷笉瑕佷负鑷繁瑙i噴?瀹稿皬瑗 2013-08-09 路 TA鑾峰緱瓒呰繃113涓禐 鐭ラ亾绛斾富 鍥炵瓟閲:114 閲囩撼鐜:0% 甯姪鐨勪汉:58.3涓...
  • 涓閬灏忓崌鍒濆ゥ鏁伴,鎬ョ敤鍟!!!1
    绛旓細鍋氳繖涓鐨勬柟娉曪細鍥犱负浣跨敤闀挎柟妗嗘9涓暟锛屾墍浠ヨ繖9涓暟涓瀹氭槸鎸夌収鏌愮瑙勫緥鑱旂郴鐨勬暟锛屾垨鑰呭乏鍙筹紝鎴栬呬笂涓嬶紝骞朵笖鍙彲鑳芥槸 涓鎺掞紙涓鍒楋級鎴栬 涓夋帓 锛堟鏂瑰舰鏄暱鏂瑰舰鐨勭壒渚嬶級銆傝繖鏍峰垎鏋愪綘灏卞ソ鍋氫簡銆傚洜涓烘槸杩炵画鐨勶紝鎵浠ヤ竴瀹氭槸绛夊樊鏁板垪銆傞偅涔堣繖浜涙暟涔嬪拰 绛変簬涓棿鐨勬暟 涔樹互9.鐜板湪鍒嗘瀽棰樹腑鐨勭瓟妗 1997/9 =...
  • 扩展阅读:小升初100%考到的题 ... 初一奥数必考50道题 ... 小学奥数100题免费 ... 奥数入门100题 ... 高中奥数经典题50道 ... 小升初奥数典型100题 ... 小升初必考十篇作文题 ... 数学小升初试卷及答案 ... 一日一练奥数100题 ...

    本站交流只代表网友个人观点,与本站立场无关
    欢迎反馈与建议,请联系电邮
    2024© 车视网