某小卖部要做一个长2.2米宽四分米高80厘米的玻璃柜台个边都要按上角铁这个柜台需要多少米角铁? 某小卖部要做一个长2.2米，宽四分米高80厘米的玻璃柜台，各...
1.\u67d0\u5c0f\u5356\u90e8\u8981\u505a\u4e00\u4e2a\u957f2.2\u7c73\uff0c\u5bbd4\u5206\u7c73\uff0c\u9ad880\u5398\u7c73\u7684\u73bb\u7483\u67dc\u53f0\uff0c\u6bcf\u8fb9\u90fd\u5b89\u4e0a\u89d2\u94c1\uff0c\u8fd9\u4e2a\u67dc\u53f0\u9700\u8981\u591a\u5c11\u7c731.\u67d0\u5c0f\u5356\u90e8\u8981\u505a\u4e00\u4e2a\u957f2.2\u7c73\uff0c\u5bbd4\u5206\u7c73\uff0c\u9ad880\u5398\u7c73\u7684\u73bb\u7483\u67dc\u53f0\uff0c\u6bcf\u8fb9\u90fd\u5b89\u4e0a\u89d2\u94c1\uff0c\u8fd9\u4e2a\u67dc\u53f0\u9700\u8981\u591a\u5c11\u7c73\u89d2\u94c1\uff1f
\u89e3\uff0c\u5f97\uff1a
\uff082.2+0.4+0.8\uff09*4
=3.4*4
=13.6\u7c73
2.5\uff081\uff09\u73ed\u671f\u4e2d\u6570\u5b66\u6d4b\u8bd5\u8fbe\u5230\u4f18\u79c0\u7684\u5b66\u751f\u670964\u4e86\uff0c\u5176\u4e2d\u7537\u751f\u670936\u4eba\u3002\u5973\u751f\u8fbe\u5230\u4f18\u79c0\u7684\u4eba\u6570\u5360\u5168\u73ed\u8fbe\u5230\u4f18\u79c0\u7684\u4eba\u6570\u7684\u51e0\u5206\u4e4b\u51e0\uff1f
\u89e3\uff0c\u5f97\uff1a
\uff0864-36\uff09/64
=58/64
3.\u7532\u3001\u4e59\u3001\u4e19\u4e09\u4e2a\u5c0f\u670b\u53cb\u53c2\u52a0\u767e\u7c73\u8d5b\u8dd1\uff0c\u7532\u7528\u4e8618\u79d2\uff0c\u6bd4\u4e59\u7528\u591a\u4e861/4\u79d2\uff0c\u4e19\u6bd4\u4e59\u591a\u7528\u4e863/5\u79d2\uff0c\u4e19\u7528\u4e86\u591a\u5c11\u79d2\uff1f
\u89e3\uff0c\u5f97\uff1a
1/4=0.25
3/5=0.6
\u7532\u7528\u4e8618\u79d2,\u6bd4\u4e59\u591a\u75284\u5206\u4e4b1\u79d2,
\u4e59\u7528\uff1a18-1/4=17.75\uff08\u79d2\uff09
\u4e19\u6bd4\u4e59\u591a\u75285\u5206\u4e4b3\u79d2
\u4e19\u7528\uff1a17.75+0.6=18.35\uff08\u79d2\uff09
4.\u4e00\u79cd\u68c9\u7c7d\u6bcf\u5343\u514b\u51fa\u6cb97/20\u5343\u514b\uff0c200\u5343\u514b\u8fd9\u79cd\u68c9\u7c7d\u53ef\u51fa\u6cb9\u591a\u5c11\u5343\u514b\uff1f
\u89e3\uff0c\u5f97\uff1a
(7/20)*200
=70\u5343\u514b
5.\u4e00\u6839\u957f\u65b9\u4f53\u6728\u6599\uff0c\u957f\u662f5\u7c73\uff0c\u6a2a\u622a\u9762\u662f\u4e00\u4e2a\u6b63\u65b9\u5f62\uff0c\u8fb9\u957f\u662f1.2\u5206\u7c73\uff0c\u8fd9\u6839\u6728\u6599\u7684\u4f53\u79ef\u662f\u591a\u5c11\u7acb\u65b9\u5206\u7c73\uff1f
\u89e3\uff0c\u5f97\uff1a
1.2*1.2*50
=1.44*50
=72\u7acb\u65b9\u5206\u7c73
4\u5206\u7c73\uff1d0.4\u7c73 80\u5398\u7c73\uff1d0.8\u7c73 \uff082.2+0.4+0.8\uff09\u00d74 \uff1d3.4\u00d74 \uff1d13.6\uff08\u7c73\uff09 \u7b54\uff1a\u8fd9\u4e2a\u67dc\u53f0\u9700\u898113.6\u7c73\u89d2\u94c1
=（2.2+0.4+0.8）×4=3.4×4
=13.6米
绛旓細=3.4脳4 =13.6绫
绛旓細4鍒嗙背锛0.4绫 80鍘樼背锛0.8绫 锛2.2+0.4+0.8锛壝4 锛3.4脳4 锛13.6锛堢背锛 绛旓細杩欎釜鏌滃彴闇瑕13.6绫宠閾
绛旓細瑙掗搧鎬婚暱灏辨槸杩欎釜闀挎柟浣12鏉℃１闀跨殑鎬诲拰銆傦紙2.2+0.4+0.8锛壝4锛3.4脳4锛13.6绫
绛旓細灏忓崠閮ㄨ鍋氫竴涓暱2.2m锛屽40cm锛岄珮80cm鐨勭幓鐠冩煖鍙帮紝鐜拌鍦ㄦ煖鍙板悇杈归兘瀹変笂瑙掗搧锛屽仛濂借繖涓煖鍙拌13.6绫崇殑瑙掗搧銆2.2绫=220鍘樼背锛岋紙220+40+80锛壝4锛=340脳4锛=1360锛堝帢绫筹級锛1360鍘樼背=13.6绫筹紱绛旓細鍋氬ソ杩欎釜鏌滃彴瑕13.6绫崇殑瑙掗搧銆
绛旓細瑙ｏ細40鍘樼背=0.4(绫)80鍘樼背=0.8(绫)杩欎釜鏌滃彴闇瑕佽閾佺殑闀垮害 =(2.2+0.4+0.8)脳4 =3.4脳4 =13.6(绫)
绛旓細鏌滃彴椤堕潰闇瑕佽閾 锛2*2.2M(闀)+2*0.4M锛堝锛=5.2鏌滃彴4鏀灦闇鐢ㄨ閾侊細4*0.8M锛堥珮锛=3.2鏌滃彴鍦伴潰涓嶈瑙掗搧鐨勮瘽锛岀瓟妗堟槸5.2+3.2=8.4
绛旓細2.2m=220cm 锛220+40+80锛墄4=1360cm 灏辨槸13.6m
绛旓細1.鏌愬皬鍗栭儴瑕佸仛涓涓暱2.2绫锛瀹4鍒嗙背锛岄珮80鍘樼背鐨勭幓鐠冩煖鍙帮紝姣忚竟閮藉畨涓婅閾侊紝杩欎釜鏌滃彴闇瑕佸灏戠背瑙掗搧锛熻В锛屽緱锛氾紙2.2+0.4+0.8锛*4 =3.4*4 =13.6绫 2.5锛1锛夌彮鏈熶腑鏁板娴嬭瘯杈惧埌浼樼鐨勫鐢熸湁64浜嗭紝鍏朵腑鐢风敓鏈36浜恒傚コ鐢熻揪鍒颁紭绉鐨勪汉鏁板崰鍏ㄧ彮杈惧埌浼樼鐨勪汉鏁扮殑鍑犲垎涔嬪嚑锛熻В锛屽緱锛氾紙64...
绛旓細灏忓崠閮ㄨ鍋氫竴涓暱2.2绫冲40鍘樼背楂80鍘樼背鐨勭幓鐠冩煖鍙帮紝瀹冪殑搴曢潰绉槸澶氬皯锛熷簳闈㈢Н=闀棵楀 40鍘樼背=0.4绫 2.2脳0.4=0.88锛堝钩鏂圭背锛夌瓟锛氬畠鐨勫簳闈㈢Н鏄0.88骞虫柟绫炽
绛旓細闀2.2绫*4+瀹0.4绫*4+楂0.8绫*4绛変簬13.6绫筹紝甯屾湜鑳藉甯姪浣
