六年级数学寒假作业《开心每一天》第18页的表格 顺便解释下怎么算植树棵数和存货棵数
\u516d\u5e74\u7ea7\u6570\u5b66\u5bd2\u5047\u4f5c\u4e1a\u300a\u5f00\u5fc3\u6bcf\u4e00\u5929\u300b\u7b2c18\u9875\u7684\u8868\u683c \u987a\u4fbf\u89e3\u91ca\u4e0b\u600e\u4e48\u7b97\u690d\u6811\u68f5\u6570\u548c\u5b58\u8d27\u68f5\u6570\u690d\u6811\u68f5\u6811\u7528\u5b58\u6d3b\u68f5\u6811\u00f7\u5b58\u6d3b\u7387 \u5b58\u6d3b\u68f5\u6811\u7528\u690d\u6811\u68f5\u6570\u00d7\u5b58\u6d3b\u7387
\u4eba\u4e8b\u5904\u5b58\u6d3b\u7387\uff1a400\u00f7500=80\uff05
\u751f\u4ea7\u5904\u690d\u6811\u68f5\u6570\uff1a582\u00f797\uff05=600\u68f5
\u6280\u672f\u5904\u5b58\u6d3b\u68f5\u6811\uff1a650\u00d798\uff05=637\u68f5
\u5e0c\u671b\u5bf9\u4f60\u6709\u5e2e\u52a9\uff0c\u5475\u5475\uff0c\u671b\u91c7\u7eb3\uff01
\u8bbe\u9999\u8549\u6bcf\u5343\u514bx\u5143\uff0c\u68a8\u6bcf\u5343\u514by\u5143\uff0c\u5219x\u00d7\uff081\uff0d1/4\uff09\uff1d1.5\uff08\u5143\uff09 y\u00d7\uff081\uff0b1/4\uff09\uff1d1.5\uff08\u5143\uff09\u89e3\u65b9\u7a0b\u5f97x=2\u5143 y=6/5\u5143 \u5047\u8bbe\u6c34\u679c\u91cd\u91cf\u4e3aa\u5343\u514b\u3002\u5219\u6309\u539f\u4ef7\u7b97\u5356\u7684\u603b\u91d1\u989d\u4e3a2a\uff0b6/5a=3.2a\u6309\u65b0\u4ef7\u683c\u7b97\u4e3a1.5a+1.5a=3a\u6240\u4ee5\u6309\u539f\u4ef7\u683c\u5356\u51fa\u6bd4\u6309\u65b0\u4ef7\u683c\u591a0.2\u6240\u4ee5\u662f\u8d54\u4e86
400÷500X100%=80%（存活棵数÷植树棵数X100%=存活率）解：设植树棵数为x棵
582÷x X100%=97%
试试看，你自己可以求出存活棵数吗？
绛旓細浣嶄簬姣忓叕鏂$ X锛孻姊ㄦ瘡鍏枻鐨勯钑夛紝X脳锛1-1/4锛= 150鍏冿紙锛塝X锛1 +1 / 4锛= 1.5锛堝厓锛夎В鏂圭▼X = 2涓鍕= 6/5鍋囧畾鐨勬潈閲嶄竴鍏枻鐨勬按鏋溿傛牴鎹師鏉ョ殑浠锋牸杩愯惀鍟嗛攢鍞2A +6 / 5A鐨勬婚噾棰= 3.2A鏂扮殑浠锋牸缁熻1.5A +1.5 = 3A锛屾墍浠ュ師鏉ョ殑閿鍞环鏍兼瘮鏂扮殑浠锋牸0.2璧斾簡 ...
绛旓細500鍗冨厠鐨勫す蹇冮潰鍖呴渶瑕佸寘瑁咃紝姣忚2涓潰鍖咃紝閲嶅洓鍒嗕箣涓鍗冨厠銆傝繖浜涢潰鍖呬竴鍏辨湁澶氬皯涓紵闇瑕佽澶氬皯琚嬶紵
绛旓細銆愬師鏂囥 妤氫汉鏈夋秹姹熻咃紝鍏跺墤鑷垷涓潬浜庢按锛岄伣锛坖霉)濂(q矛)鍏惰垷锛屾洶锛氣滄槸鍚惧墤涔嬫墍浠庡潬銆傗濊垷姝紝浠庡叾鎵濂戣呭叆姘存眰涔嬨傝垷宸茶鐭ｏ紝鑰屽墤涓嶈锛屾眰鍓戣嫢姝わ紝涓嶄害鎯戜箮锛佽瘧鏂 銆愯瘧鏂囥 鏈変竴涓浮姹熺殑妤氬浗浜猴紝浠栫殑鍓戜粠鑸逛笂鎺夎繘浜嗘按閲屻備粬鎬ュ繖鐢ㄥ垁鍦ㄨ埞娌夸笂鍒讳簡涓涓鍙凤紝璇达細鈥滆繖鍎挎槸...
绛旓細1銆佸悓瀛姣忓ぉ鏅氫笂閮借翰鍦ㄨ瀛愰噷鍚竴鐩樹粬浠庡閲屽甫鏉ョ殑纾佸甫锛屽師鍥犳槸锛氫粬鐖舵瘝閮芥槸鑱嬪搼浜猴紝浠栧綍涓嬩簡鐖舵瘝鍛煎惛鐨勫０闊筹紝姣忓ぉ鏅氫笂鍚潃锛屾劅瑙夌埗姣嶅ソ鍍忓湪韬竟涓鏍枫2銆佲滄垜鈥濈殑蹇冩儏涓寮濮嬫槸鎰熷埌锛堝鎬級鎺ヤ笅鏉ヨ寰楋紙绾抽椃锛夛紝鏈鍚庤娣辨繁鍦帮紙闇囨喚锛夈傞偅鏄洜涓猴紙鈥滄垜鈥濅粠涓寮濮嬬殑鐚滅枒锛屽埌鐞嗚В锛屽埌鎰熷姩锛屾繁娣卞湴鎰熷彈...
绛旓細鍐欎釜姣涚嚎鍟婏紒鎴戣嚜鎵撳洓骞寸骇灏辨病浜よ繃瀵掑亣浣滀笟鐓ф牱姣忛棬涓嶄笅90锛佸啓浜嗘瘺绾跨敤閮芥病鏈夛紒骞虫椂濂藉ソ瀛︿範锛屼笂璇捐鐪熷惉锛屽仛濂藉钩鏃朵綔涓氬氨澶熶簡锛岃冭捣璇曟潵璁ょ湡鍐欙紝濡傛灉浣犳垚缁╁濂斤紝鑰佸笀涓嶆暍鎶婁綘鎬庝箞鏍凤紝鍖呮嫭瀹堕暱閮藉彲浠ユ嬁浣犳病鍔炴硶锛屽墠鎻愭槸浣犳垚缁╁ソ锛屽湪鍏ㄧ彮涓嶈鍓嶅崄锛屽墠鍗佷簲鍚э紒鐩镐俊鎴戝绁楋紝灏忓鐨勪笢瑗夸笉闅撅紝so ...
绛旓細1.澧為暱鐜=锛2011骞翠骇閲忥級闄や簬锛2012骞翠骇閲-2011骞翠骇閲忥級鎴愮櫨鍒嗕箣鐧撅紝锛2011鍦ㄤ笅闈紝2012-2011鍦ㄤ笅闈級锛2锛夌櫨鍒嗕箣浜岋紝鐧惧垎涔嬩簩鍗侊紝鐧惧垎涔嬩簲銆
绛旓細鍝︼紝鎮ㄥソ锛佺涓棰橈細棣栧厛浣犺瀛︿細姒傛嫭鏈枃锛屽皢涓昏鐨勮鍑烘潵锛屾棦鐒朵粬闂綘绉戝瀹舵弿缁樼殑鏈潵鐢熸椿鏄粈涔堬紝閭ｄ綘灏辫鎯崇瀛﹀鍦ㄦ枃绔犱腑璇翠簡浜涗粈涔堬紝鎯充簡浜涗粈涔堬紝鍋氫簡浜涗粈涔堬紝鐒跺悗缁煎悎鍦ㄤ竴璧凤紝鍐嶆鎷鎷紝鍖哄垎寮鏉ワ紝灏辨槸姝ｇ‘绛旀銆傜浜岄锛氳繖閬撻鍏跺疄鍜屼笂闈㈢殑宸笉澶氾紝鍙笉杩囦綘瑕佹兂鎯筹紝濡傛灉鏈変簡杩欐牱鐨勬兂娉曪紝...
绛旓細2014-02-12 浜烘暀鐗堝紑蹇冩瘡涓澶╁瘨鍋囦綔涓氭暟瀛︾殑绗18椤电殑绗3灏忛.鎬庝箞鍐?蹇... 1 2011-06-24 2011骞村洓骞寸骇鐨鏁板蹇箰鍚屾缁冪殑66椤电殑绗叚棰樻庝箞鍋? 5 2013-02-17 寮蹇冩瘡涓澶╁瘨鍋囦綔涓氬叚骞寸骇鏁板绗10椤 3 2014-03-07 寮蹇冩瘡涓澶╁瘨鍋囦綔涓氬叚骞寸骇鏁板24椤电瓟妗堛 5 鏇村...
绛旓細绛旓紱1锛宎,绗洓鑷劧娈佃捣鐐规槑涓績锛屾繁鍖栦富棰樼殑浣滅敤銆俠,浣犵粨鍚堟枃绔犺儭鎵嚑鍙ュ叧浜庣偣鏄庝腑蹇冪殑璁烘柇銆2锛岀鍥涜嚜鐒舵閲囩敤鎶掓儏锛堢洿鎶掕兏鑷嗭級鐨勬墜娉曡〃杈句簡浣滆呭鐖舵瘝鏃犺█鐨勭埍杩欎竴鈥滄渶缇庣殑澹伴煶鈥濈殑璧炵編涔嬫儏銆3锛岀鍥涜嚜鐒舵鐢ㄥ姩浜虹殑鏂囧瓧璁╂垜浠鑰呬骇鐢熶簡鍏遍福锛岃浜烘劅鍒伴潪甯哥殑鎰熷姩銆傞槄璇婚鍏跺疄灏辫繖涔堝洖浜嬶紝浠ュ悗浣犲氨...
绛旓細1.浣滆呮祻瑙堟紦姹熺湅鍒扮殑涓昏鏅偣锛1銆乢鏉ㄥ牑椋炵戙侀菠楸煎銆佸崜澹佸嘲銆佸嚭浜岄儙宄°2銆侀粍甯冩哗銆3銆佺ⅶ鑾插嘲銆傜濂団斺2 浣滆呮父妗傛灄灞辨按锛屽澶ц嚜鐒剁殑鈥滃法骞呯敾鍗封濊禐鍙逛笉宸层3锛 濂囧 锛夐仴鏈涒斺旓紙鐪烘湜 锛夎禐缇庘斺旓紙 璧炴壃 锛
