小学四年级数学鸡兔同问题。 四年级数学鸡兔同笼100道应用题(不含答案)
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\u65b9\u6cd5\u4e09
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\u6269\u5c55\u8d44\u6599\uff1a
\u76f8\u5173\u516c\u5f0f\uff1a
\u516c\u5f0f1\uff1a\uff08\u5154\u7684\u811a\u6570\u00d7\u603b\u53ea\u6570\uff0d\u603b\u811a\u6570\uff09\u00f7\uff08\u5154\u7684\u811a\u6570\uff0d\u9e21\u7684\u811a\u6570\uff09=\u9e21\u7684\u53ea\u6570
\u603b\u53ea\u6570\uff0d\u9e21\u7684\u53ea\u6570=\u5154\u7684\u53ea\u6570
\u516c\u5f0f2\uff1a\uff08 \u603b\u811a\u6570\uff0d\u9e21\u7684\u811a\u6570\u00d7\u603b\u53ea\u6570\uff09\u00f7\uff08\u5154\u7684\u811a\u6570\uff0d\u9e21\u7684\u811a\u6570\uff09=\u5154\u7684\u53ea\u6570
\u603b\u53ea\u6570\uff0d\u5154\u7684\u53ea\u6570=\u9e21\u7684\u53ea\u6570
\u516c\u5f0f3\uff1a\u603b\u811a\u6570\u00f72\u2014\u603b\u5934\u6570=\u5154\u7684\u53ea\u6570
\u603b\u53ea\u6570\u2014\u5154\u7684\u53ea\u6570=\u9e21\u7684\u53ea\u6570
\u516c\u5f0f4\uff1a\u5154\u603b\u53ea\u6570=\uff08\u9e21\u5154\u603b\u811a\u6570-2\u00d7\u9e21\u5154\u603b\u53ea\u6570\uff09\u00f72 \u9e21\u7684\u53ea\u6570=\u9e21\u5154\u603b\u53ea\u6570-\u5154\u603b\u53ea\u6570
\u516c\u5f0f5\uff1a\u9e21\u7684\u53ea\u6570=(4\u00d7\u9e21\u5154\u603b\u53ea\u6570-\u9e21\u5154\u603b\u811a\u6570\uff09\u00f72 \u5154\u7684\u53ea\u6570=\u9e21\u5154\u603b\u53ea\u6570-\u9e21\u7684\u53ea\u6570
\u516c\u5f0f6 \uff1a4\u00d7+2\uff08\u603b\u6570\uff0dx\uff09=\u603b\u811a\u6570 \uff08x=\u5154\uff0c\u603b\u6570\uff0dx=\u9e21\u6570\uff0c\u7528\u4e8e\u65b9\u7a0b\uff09
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u9e21\u5154\u540c\u7b3c
1\uff0e\u9e21\u5154\u540c\u7b3c\uff0c\u5171\u670930\u4e2a\u5934\uff0c88\u53ea\u811a\u3002\u6c42\u7b3c\u4e2d\u9e21\u5154\u5404\u6709\u591a\u5c11\u53ea\uff1f
2\uff0e\u9e21\u5154\u540c\u7b3c\uff0c\u5171\u6709\u593448\u4e2a\uff0c\u811a132\u53ea\uff0c\u6c42\u9e21\u548c\u5154\u5404\u6709\u591a\u5c11\u53ea\uff1f
3\uff0e\u4e00\u4e2a\u9972\u517b\u7ec4\u4e00\u5171\u517b\u9e21\u3001\u515478\u53ea\uff0c\u5171\u6709200\u53ea\u811a\uff0c\u6c42\u9972\u517b\u7ec4\u517b\u9e21\u548c\u5154\u5404\u591a\u5c11\u53ea\uff1f
4\uff0e\u9e21\u5154\u540c\u7b3c\u4e0d\u77e5\u6570\uff0c\u4e09\u5341\u516d\u5934\u7b3c\u4e2d\u9732\u3002\u6570\u6e05\u811a\u5171\u4e94\u5341\u53cc\uff0c\u5404\u6709\u591a\u5c11\u9e21\u548c\u5154\uff1f
5\uff0e\u5c0f\u660e\u752810\u5143\u94b1\u6b63\u597d\u4e70\u4e8620\u5206\u548c50\u5206\u7684\u90ae\u7968\u517135\u5f20\uff0c\u6c42\u8fd9\u4e24\u79cd\u90ae\u7968\u540d\u4e70\u4e86\u591a\u5c11\u5f20\uff1f
6\uff0e\u5c0f\u7ea2\u752813\u51436\u89d2\u6b63\u597d\u4e70\u4e8650\u5206\u548c80\u5206\u90ae\u7968\u5171\u8ba120\u5f20\uff0c\u6c42\u4e24\u79cd\u90ae\u7968\u5404\u4e70\u4e86\u591a\u5c11\u5f20\uff1f
7\uff0e\u5c0f\u521a\u7684\u50a8\u84c4\u7f50\u91cc\u51712\u5206\u548c5\u5206\u786c\u5e0170\u679a\uff0c\u5c0f\u521a\u6570\u4e86\u4e00\u4e0b\uff0c\u4e00\u5171\u6709194\u5206\uff0c\u6c42\u4e24\u79cd\u786c\u5e01\u5404\u6709\u591a\u5c11\u679a\uff1f
8\uff0e\u4e09\u5e74\u4e00\u73ed30\u4eba\u5171\u5411\u5317\u4eac\u5965\u8fd0\u4f1a\u6350\u6b3e205\u5143\uff0c\u540c\u5b66\u6bcf\u4eba\u4e86\u6350\u4e865\u5143\u621610\u5143\uff0c\u4f60\u77e5\u9053\u63505\u5143\u548c10\u5143\u7684\u540c\u5b66\u5404\u6709\u591a\u5c11\u4eba\u5417\uff1f
9\uff0e\u4e09\u5e74\u4e8c\u73ed45\u4e2a\u540c\u5b66\u5411\u7231\u5fc3\u57fa\u91d1\u4f1a\u5171\u8ba1\u6350\u6b3e100\u5143\uff0c\u5176\u4e2d11\u4e2a\u540c\u5b66\u6bcf\u4eba\u63501\u5143\uff0c\u5176\u4ed6\u540c\u5b66\u6bcf\u4eba\u63502\u5143\u62165\u5143\uff0c\u6c42\u63502\u5143\u548c5\u5143\u7684\u540c\u5b66\u5404\u6709\u591a\u5c11\u4eba\uff1f
10\uff0e\u677e\u9f20\u5988\u5988\u91c7\u677e\u7c7d\uff0c\u6674\u5929\u6bcf\u5929\u53ef\u4ee5\u91c720\u4e2a\uff0c\u96e8\u5929\u6bcf\u5929\u53ea\u80fd\u91c712\u4e2a\u3002\u5b83\u4e00\u8fde8\u5929\u5171\u91c7\u4e86112\u4e2a\u677e\u7c7d\uff0c\u8fd9\u516b\u5929\u6709\u51e0\u5929\u6674\u5929\u51e0\u5929\u96e8\u5929\uff1f
11\uff0e\u67d0\u6821\u6709\u4e00\u6279\u540c\u5b66\u53c2\u52a0\u6570\u5b66\u7ade\u8d5b\uff0c\u5e73\u5747\u5f9763\u5206\uff0c\u603b\u5206\u662f3150\u5206\u3002\u5176\u4e2d\u7537\u751f\u5e73\u5747\u5f9760\u5206\uff0c\u5973\u751f\u5e73\u5747\u5f9770\u5206\u3002\u6c42\u53c2\u52a0\u7ade\u8d5b\u7684\u7537\u5973\u5404\u6709\u591a\u5c11\u4eba\uff1f
12\uff0e\u4e00\u6b21\u6570\u5b66\u7ade\u8d5b\u5171\u670920\u9053\u9898\u3002\u505a\u5bf9\u4e00\u9053\u9898\u5f975\u5206\uff0c\u505a\u9519\u4e00\u9898\u5012\u62633\u5206\uff0c\u5218\u51ac\u8003\u4e8652\u5206\uff0c\u4f60\u77e5\u9053\u5218\u51ac\u505a\u5bf9\u4e86\u51e0\u9053\u9898\uff1f
13\uff0e\u4e00\u6b21\u6570\u5b66\u7ade\u8d5b\u5171\u670920\u9053\u9898\u3002\u505a\u5bf9\u4e00\u9053\u9898\u5f978\u5206\uff0c\u505a\u9519\u4e00\u9898\u5012\u62634\u5206\uff0c\u5218\u51ac\u8003\u4e86112\u5206\uff0c\u4f60\u77e5\u9053\u5218\u51ac\u505a\u5bf9\u4e86\u51e0\u9053\u9898\uff1f
14\uff0e52\u540d\u540c\u5b66\u53bb\u5212\u8239\uff0c\u4e00\u5171\u4e58\u575011\u53ea\u8239\uff0c\u5176\u4e2d\u6bcf\u53ea\u5927\u8239\u57506\u4eba\uff0c\u6bcf\u53ea\u5c0f\u8239\u57504\u4eba\u3002\u6c42\u5927\u8239\u548c\u5c0f\u8239\u5404\u51e0\u53ea\uff1f
15\uff0e\u5728\u4e00\u4e2a\u505c\u8f66\u573a\u4e0a\uff0c\u505c\u4e86\u5c0f\u8f7f\u8f66\u548c\u6469\u6258\u8f66\u4e00\u517132\u8f86\uff0c\u8fd9\u4e9b\u8f66\u4e00\u5171108\u4e2a\u8f6e\u5b50\u3002\u6c42\u5c0f\u8f7f\u8f66\u548c\u6469\u6258\u8f66\u5404\u6709\u591a\u5c11\u8f86\uff1f
16\uff0e\u89e3\u653e\u519b\u8fdb\u884c\u91ce\u8425\u62c9\u7ec3\u3002\u6674\u5929\u6bcf\u5929\u8d70 35\u5343\u7c73\uff0c\u96e8\u5929\u6bcf\u5929\u8d70 28\u5343\u7c73\uff0c11\u5929\u4e00\u5171\u8d70\u4e86 350\u5343\u7c73\u3002\u6c42\u8fd9\u671f\u95f4\u6674\u5929\u5171\u6709\u591a\u5c11\u5929\uff1f
17\uff0e100\u4e2a\u548c\u5c1a\u5403\u4e86100\u4e2a\u9762\u5305\uff0c\u5927\u548c\u5c1a1\u4eba\u54033\u4e2a\uff0c\u5c0f\u548c\u5c1a3\u4eba\u54031\u4e2a\u3002\u6c42\u5927\u5c0f\u548c\u5c1a\u5404\u6709\u591a\u5c11\u4e2a\uff1f
18\uff0e\u6709\u8718\u86db\u3001\u873b\u8713\u3001\u8749\u4e09\u79cd\u52a8\u7269\u517118\u53ea\uff0c\u5171\u6709\u817f118\u6761\uff0c\u7fc5\u818020\u5bf9\u3002\u95ee\u873b\u8713\u6709\u591a\u5c11\u53ea\uff1f\uff08\u8718\u86db8\u6761\u817f\uff1b\u873b\u87136\u6761\u817f\uff0c\u4e24\u5bf9\u7fc5\u8180\uff1b\u87496\u6761\u817f\uff0c\u4e00\u5bf9\u7fc5\u8180\uff09
19\uff0e\u4e00\u961f\u5f3a\u76d7\u4e00\u961f\u72d7\uff0c\u4e8c\u961f\u62fc\u4f5c\u4e00\u961f\u8d70\uff0c\u6570\u5934\u4e00\u5171\u4e09\u767e\u516d\uff0c\u6570\u817f\u4e00\u5171\u516b\u767e\u4e5d\uff0c\u95ee\u6709\u591a\u5c11\u5f3a\u76d7\u591a\u5c11\u72d7\uff1f
\u7b54\u6848
1\uff0e\u9e21\uff1a16\u53ea\uff0c\u5154\uff1a14\u53ea
2\uff0e\u9e21\uff1a30\u53ea\uff0c\u5154\uff1a18\u53ea
3\uff0e\u9e21\uff1a56\u53ea\uff0c\u5154\uff1a22\u53ea
4\uff0e\u9e21\uff1a22\u53ea\uff0c\u5154\uff1a14\u53ea
5\uff0e20\u5206\u7684\u90ae\u796825\u5f20\uff0c50\u5206\u7684\u90ae\u796810\u5f20\u3002
6\uff0e50\u5206\u7684\u90ae\u79688\u5f20\uff0c80\u5206\u90ae\u796812\u5f20\u3002
7\uff0e2\u5206\u786c\u5e0152\u679a\uff0c5\u5206\u786c\u5e0118\u679a\u3002
8\uff0e\u6350\u4e865\u5143\u7684\u540c\u5b66\u670919\u4eba\uff0c\u635010\u5143\u7684\u670911\u4eba\u3002
9\uff0e\u63502\u5143\u7684\u670927\u4eba\uff0c\u63505\u5143\u7684\u67097\u4eba\u3002
10\uff0e\u6674\u59292\u5929\uff0c\u96e8\u59296\u5929\u3002
11\uff0e\u6c42\u53c2\u52a0\u7ade\u8d5b\u7684\u5973\u751f15\u4eba\uff0c\u7537\u751f35\u4eba\u3002
12\uff0e\u5218\u51ac\u505a\u5bf914\u9053\u9898\u3002
13\uff0e\u5218\u51ac\u505a\u5bf916\u9053\u9898\u3002
14\uff0e\u5927\u82394\u53ea\uff0c\u5c0f\u82397\u53ea\u3002
15\uff0e\u5c0f\u8f7f\u8f6622\u8f86\uff0c\u6469\u6258\u8f6610\u8f86\u3002
16\uff0e\u6674\u5929\u5171\u67096\u5929\u3002
17\uff0e\u5927\u548c\u5c1a\u670925\u4e2a\uff0c\u5c0f\u548c\u5c1a\u670975\u4e2a\u3002
18\uff0e\u8718\u86db5\u53ea\uff1b\u873b\u87137\u53ea\uff1b\u87496\u53ea\u3002
19\uff0e\u5f3a\u76d7275\u4eba\uff0c\u72d785\u53ea\u3002
小明有20枚1元和5角的硬币,一共12.5元,请问小明1元和5角硬币各有多少枚?
解:假设全部为1元硬币,金额应为20元,比实际的12.5元多出:20-12.5=7.5元
是因为将5角硬币也按1元计算了,每枚多算:1-0.5=0.5元
5角硬币数量:7.5÷0.5=15(枚)
1元硬币数量:20-15=5(枚)
绛旓細8. 寮犲ぇ濡堝鍏荤殑楦℃瘮鍏斿13鍙紝鍏旇冻姣旈浮瓒冲皯16鍙紝姹楦″厰鍚勬湁澶氬皯鍙紵9. 楣ら緹鍚屾睜锛岄工姣旈緹澶12鍙紝楣ら緹瓒冲叡72鍙紝姹傞工榫熷悇鏈夊灏戝彧锛10. 灏忓垰涔板洖8鍒嗛偖绁ㄥ拰4鍒嗛偖绁ㄥ叡100寮狅紝鍏变粯鍑6.8鍏冿紝闂紝灏忓垰涔板洖杩欎袱绉嶉偖绁ㄤ釜澶氬皯寮狅紵鍚勪粯鍑哄灏戝厓锛11. 涓滈灏忓鏈3鍚嶅悓瀛﹀幓鍙傚姞鏁板绔炶禌锛屼竴浠...
绛旓細楦″厰鍚绗煎叡鏈30涓ご88鍙剼姹傜涓浮鏈16鍙,鍏旀湁14鍙傞浮鍏斿悓绗硷紝鏄腑鍥藉彜浠h憲鍚嶅吀鍨嬭叮棰樹箣涓锛屽ぇ绾﹀湪1500骞村墠锛屻婂瓩瀛愮畻缁忋嬩腑灏辫杞戒簡杩欎釜鏈夎叮鐨闂銆傚巻鍙茶儗鏅 楦″厰鍚岀鏄腑鍥藉彜浠g殑鏁板鍚嶉涔嬩竴銆傚ぇ绾﹀湪1500骞村墠锛屻婂瓩瀛愮畻缁忋嬩腑灏辫杞戒簡杩欎釜鏈夎叮鐨勯棶棰樸備功涓槸杩欐牱鍙欒堪鐨勶細浠婃湁闆夊厰鍚岀锛...
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绛旓細7銆佸紶澶у鍏婚浮鍏斿叡200鍙紝楦″厰瓒虫暟鍏560鍙紝姹傞浮鍏斿悇鏈夊灏戝彧锛8銆侀工榫熷悓姹狅紝楣ゆ瘮榫熷12鍙紝楣ら緹瓒冲叡72鍙紝姹傞工榫熷悇鏈夊灏戝彧锛9銆佸皬鍒氫拱鍥8鍒嗛偖绁ㄥ拰4鍒嗛偖绁ㄥ叡100寮狅紝鍏变粯鍑6.8鍏冿紝闂紝灏忓垰涔板洖杩欎袱绉嶉偖绁ㄤ釜澶氬皯寮狅紵鍚勪粯鍑哄灏戝厓锛10銆佷笢椋灏忓鏈3鍚嶅悓瀛﹀幓鍙傚姞鏁板绔炶禌锛屼竴浠借瘯鍗峰叡10閬撻...
绛旓細璁鹃浮鐨勫彧鏁版槸x,鍒欏厰瀛愮殑鍙暟鏄35-x锛屾牴鎹剼鐨勬暟閲忓彲寰楋細2x+4锛35-x锛=94 瑙e緱锛歺=23锛屽嵆楦℃湁23鍙紝鍏斿瓙鏈35-23=12鍙備互涓婃槸鎴戞兂鍒扮殑鏂规硶锛岀浉淇¤繕鏈夋洿澶氱殑鏂规硶鏉ヨВ绛斻侫pple锛屼綘鎬庝箞绠楃殑鍛紵灏忕粨锛氣楦″厰鍚绗奸棶棰樷濇槸涓憲鍚嶇殑鏁板闂锛屾簮浜庢垜鍥藉彜绠椾功銆婂瓩瀛愮畻缁忋嬶紝鍏跺唴瀹规槸锛氣滀粖鏈夐泬...
绛旓細1銆楦″厰鍚绗煎叡80涓ご,208鍙剼,楦″拰鍏斿悇鏈夊嚑鍙?鍒嗘瀽:鍋囪杩80澶村叏鏄浮,閭d箞,鑴氬簲鏄2脳80=160(鍙),姣斿疄闄呭皯208-160=48(鍙)鑴,杩欐槸鍥犱负1鍙厰鏈4鍙剼,鎶婂畠鐪嬫垚鏄2鍙剼鐨勯浮浜,姣忓彧鍏斿皯绠椾簡2鍙剼,鍏卞皯绠椾簡48鍙剼,48閲岄潰鏈夊嚑涓2,灏辨槸鍑犲彧鍏斻傝В:(208-2脳80)梅(4-2)=48梅2=24(鍙)---...
绛旓細锛50-18脳2锛壝凤紙4-2锛=14梅2 =7鍙 18-7=11鍙 鏈11鍙附瀛愬拰7鍙箤榫熴
绛旓細璁剧涓叡鏈夐浮X鍙紝鍥犱负鍏斿瓙鎬绘暟涓庨浮鎬绘暟鐩哥瓑锛屾墍浠ュ厰瀛愪篃鏈塜鍙傚垯楦¤剼鏈2X鍙紝鍏嶈剼鏈4X鍙傛牴鎹鎰忓緱锛4X-2X=28銆傝В棰樺緱锛2X=28銆俋=14銆傗楦″厰鍚绗奸棶棰樷濇槸鎴戝浗鍙ょ畻涔︺婂瓩瀛愮畻缁忋嬩腑钁楀悕鐨鏁板闂锛屽叾鍐呭鏄細鈥滀粖鏈夐泬锛堥浮锛夊厰鍚岀锛屼笂鏈変笁鍗佷簲澶达紝涓嬫湁涔濆崄鍥涜冻銆傞棶闆夊厰鍚勫嚑浣曘傗 銆
绛旓細楦″厰鍚绗兼姮鑵挎硶涓锛氬亣璁炬瘡鍙浮鎶竴鍙剼锛屾瘡鍙厰鎶2鍙剼銆傜敱94梅2=47锛屽嵆绗煎瓙涓嬮潰鏈47鍙剼锛岃繖鏃朵竴鍙浮瀵瑰簲1鍙剼锛屼竴鍙厰瀛愬搴2鍙剼锛岃岀瀛愪笂闈㈡湁35涓ご銆傜敱47-35=12锛屽嵆濡傛灉鐢35涓ご瀵瑰簲35鍙剼鐨勮瘽锛岃繕浼氬鍑烘潵12鍙剼锛屼篃灏辨槸璇寸瀛愰噷鏈12鍙厰瀛 鐢35锛12=23锛屽嵆绗煎瓙閲屾湁23鍙浮銆傞浮鍏...
绛旓細楦″厰鍚绗闂鏄紶缁熺畻鏈涓殑涓绉嶏細楦″厰鍚屽湪涓涓瀛愰噷锛岀煡閬撳ご鏁般佽剼鏁帮紝姹傞浮銆佸厰鍚勫灏戝彧銆傞浮鍏斿悓绗奸棶棰樿В棰樼殑鎬濊矾锛氬亣璁鹃兘鏄浮锛堟垨鍏旓級锛屾眰鍑鸿繖涓亣璁剧殑鎬昏剼鏁帮紝鍒嗘瀽鍋囪鍑烘潵鐨勬昏剼鏁颁笌瀹為檯鑴氭暟鐨勫樊鍊硷紝鐢ㄨ繖涓奸櫎浠ワ紙4-2锛夊嵆寰楀厰锛堟垨楦★級鐨勫彧鏁般傦紙4-2锛夊氨鏄敤涓鍙厰鐨4鍙剼鍑忓幓...