怎么解甲比乙的几倍多或少多少的应用题 六年级数学应用题比多少倍多多少的题目怎么做
\u4ec0\u4e48\u6bd4\u4ec0\u4e48\u7684\u51e0\u500d\u5c11\uff08\u6216\u591a\uff09\u7684\uff0c\u8fd9\u4e2a\u5728\u6570\u5b66\u9898\u662f\u600e\u4e48\u7406\u89e3\uff0c\u5c31\u6bd4\u5982\u8bf4\uff0c\u7532\u8d27\u6bd4\u4e59\u8d27\u76842\u500d\u5c1113\u4e2a\uff0c\u3010\u597d\u50cf\u8fd9\u591a\u591a\u5c11\u5c31\u662f+\u591a\u5c11\uff0c\u5c11\u591a\u5c11\u5c31\u662f\u51cf\u591a\u5c11
\u51e0\u500d\u5c31\u662f\u4e58\u4ee5\u51e0
\u6bd4\u5982\u4f60\u4e3e\u7684\u4f8b\u5b50\uff1a\u4e59\u76842\u500d\u5c31\u662f2*\u4e59
\u4e59\u76842\u500d\u5c1113\u5c31\u662f2*\u4e59-13
\u5219\u7532\u6bd4\u4e59\u76842\u500d\u5c1113 \u5c31\u662f\u7532=2*\u4e59-13
\uff08\u540c\u610f\u8bf7\u91c7\u7eb3\u3002\u3002\uff09
\u57fa\u672c\u9898\u578b\u548c\u500d\u95ee\u9898:
\u548c\u00f7(\u500d\u6570+1)=\u5c0f\u6570\uff0c
\u548c-\u5c0f\u6570=\u5927\u6570\u3002
\u57fa\u672c\u9898\u578b\u5dee\u500d\u95ee\u9898:
\u5dee\u00f7(\u500d\u6570-1)=\u5c0f\u6570\uff0c
.\u5c0f\u6570+\u5dee=\u5927\u6570\u3002
\u6269\u5c55\u9898:\u5df2\u77e5\u4e8c\u6570\u4e4b\u548c\u53ca\u5927\u6570\u6bd4\u5c0f\u6570\u7684k\u500d\u591aa\u6c42\u4e8c\u6570\uff0c\u53ea\u8981\u4ece\u548c\u4e2d\u51cf\u53bba\u5c31\u8f6c\u5316\u6210\u548c\u500d\u95ee\u9898\u3002
(\u548c-a)\u00f7(k+1)=\u5c0f\u6570;
\u540c\u7406\uff0c\u82e5\u5df2\u77e5\u4e8c\u6570\u4e4b\u548c\u53ca\u5927\u6570\u6bd4\u5c0f\u6570\u7684k\u500d\u5c11b\uff0c\u53ea\u8981\u628a\u548c\u6570\u52a0\u4e0ab\u5c31\u4f1a\u8f6c\u5316\u6210\u548c\u500d\u95ee\u9898\u3002
(\u548c+b)\u00f7(k+1)=\u5c0f\u6570\u3002
\u5df2\u77e5\u4e8c\u6570\u4e4b\u5dee\u53ca\u5927\u6570\u6bd4\u5c0f\u6570\u7684k\u500d\u591aa\u6216\u5c11b\uff0c\u4e5f\u53ef\u4ee5\u4eff\u4e0a\u4f5c\u6cd5\u8f6c\u5316\u6210\u5dee\u500d\u5411\u9898\u89e3\u4e4b\u3002
\u8981\u5b66\u4f1a\u753b\u7ebf\u6bb5\u793a\u610f\u56fe\uff0c\u501f\u52a9\u7ebf\u6bb5\u793a\u610f\u56fe\u5f88\u5bb9\u6613\u627e\u5230\u89e3\u9898\u7075\u611f\u3002
甲是乙的2倍：设乙为X 那么甲为2X
绛旓細鐢叉瘮涔欏2鍊锛氳涔欎负X 閭ｄ箞鐢蹭负3X 鐢叉槸涔欑殑2鍊嶏細璁句箼涓篨 閭ｄ箞鐢蹭负2X
绛旓細鐢叉瘮涔欏皯澶氬皯鍊锛岀悊瑙ｄ负澶氬皯鍊嶇敳绛変簬涔欍傛牴鎹煡璇㈢浉鍏冲叕寮淇℃伅鏄剧ず锛屼妇涓緥瀛愶紝鐢叉瘮涔欏皯3鍊嶏紝鍒欒鏄3鐢茬瓑浜庝箼銆傛墍浠ョ敳姣斾箼灏戝灏戝嶏紝鍒欐槸澶氬皯鍊嶇敳绛変簬涔欍
绛旓細鐢叉暟姣斾箼鏁板400%锛屼箼鏁版瘮鐢叉暟灏80%銆傝В绛旇繃绋嬪涓嬶細锛1锛夌敳鏁版槸涔欐暟鐨勪簲鍊嶏紝浠や箼鏁颁负1锛屽垯鐢叉暟涓1脳5=5銆傦紙2锛夌敳鏁版瘮涔欐暟澶氱櫨鍒嗕箣鍑犵殑鏁板琛ㄨ揪寮忎负锛氾紙5-1锛/1=4銆4鍖栨垚鐧惧垎鏁扮瓑浜400%銆傦紙3锛変箼鏁版瘮鐢叉暟灏戠櫨鍒嗕箣鍑犵殑鏁板琛ㄨ揪寮忥細锛5-1锛/5=4/5=0.8銆0.8鍖栨垚鐧惧垎鏁扮瓑浜80%銆
绛旓細鍒鐢叉瘮涔欑殑2鍊嶅皯13 灏辨槸鐢=2*涔-13 锛堝悓鎰忚閲囩撼銆傘傦級
绛旓細瑙:鈶犵涓绉嶆儏鍐:鐢叉瘮涔欑殑涓夊嶈繕澶6寮 涔欐湁锛(246-6)梅(3+1)=240梅4 =60(寮)鐢叉湁锛60脳3+6 =180+6 =186(寮)鈶＄浜岀鎯呭喌锛氱敳鏄箼鐨3鍊嶅皯6寮 涔欐湁锛(246+6)梅(3+1)=252梅4 =63(寮)鐢叉湁锛63脳3-6 =189-6 =183(寮)...
绛旓細鐢叉暟姣斾箼鏁板 =锛4-1锛壝1脳100 =300 涔欐暟姣旂敳鏁板皯 =锛4-1锛壝4脳100 =75 ~涓鍒绘案杩523涓轰綘瑙ｇ瓟锛岀浣犲涔犺繘姝~~濡傛灉浣犺鍙垜鐨勫洖绛旓紝璇峰強鏃剁偣鍑汇愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽畘~鎵嬫満鎻愰棶鑰呭湪瀹㈡埛绔彸涓婅璇勪环鐐光滄弧鎰忊濆嵆鍙倊浣犵殑閲囩撼鏄垜鍓嶈繘鐨勫姩鍔泘~~濡傝繕鏈夋柊鐨勯棶棰橈紝璇峰彟澶栧悜鎴戞眰鍔╋紝...
绛旓細杩欐槸涓涓樺樊鍊闂鈥欍傚樊=9.7+3.5=13.2 涔熷氨鏄锛氱敳鏁板啀澧炲姞3.5锛屽垰濂芥槸涔鏁扮殑4鍊嶏紝杩欐椂涔欐暟姣旂敳鏁板皯浜9.7+3.5=13.2銆傚嶆暟=4 涔欐暟=宸凤紙鍊嶆暟-1锛=锛9.7+3.5锛壝凤紙4-1锛=13.2梅3 =4.4銆
绛旓細璁剧敳涓簒锛屼箼涓簓锛屼笝涓簔 x=3y+18 z=5x-56 z-x=112 浠ｅ叆 z=112+x 浠ｅ叆浜 4x=168 x=42 z=154 y=8
绛旓細鐢叉暟鏄320锛屾槸涔欐暟鐨4鍊锛岀敳鏁版瘮涔欐暟澶氬灏?涔欐槸320/4=80 鐢叉瘮涔欏:320-80=240 384闄や互8鍑忓幓2鐨勫樊锛屽晢瓒冲灏?鍟嗘槸:384/(8-2)=64 24O鏄粈涔堟暟鐨8鍊 240鏄240/8=30鐨8鍊
绛旓細杩欓亾棰樼洰杩欐牱璁＄畻銆傝鐢蹭箼涓欏垎鍒负xyz銆俋=2Y+4 Y=3Z-2 X=Z+250 瑙ｅ嚭X=300 Y=148 Z=50 鏁板瑙ｉ鏂规硶鍜屾妧宸с備腑灏忓鏁板锛岃繕鍖呮嫭濂ユ暟锛屽湪瀛︿範鏂归潰瑕佹眰鏂规硶閫傚疁锛屾湁浜嗗ソ鐨勬柟娉曞拰鎬濊矾锛屽彲鑳戒細浜嬪崐鍔熷嶏紒閭ｆ湁鍝簺鏂规硶鍙互渚濇嵁鍛紵甯屾湜澶у鑳芥儻鐢ㄨ繖浜涙濈淮鍜屾柟娉曟潵瑙ｉ锛佸舰璞℃濈淮鏂规硶鏄寚浜轰滑鐢ㄥ舰璞...
