实验小学准备给长7米宽5米的会议室铺上边长为5分米的方砖一共需要多少块这样? 学校准备给长8米,宽5.2米的教室铺地砖,用边长O.4米的方...
\u5b66\u6821\u51c6\u5907\u7ed9\u957f8\u7c73\uff0c\u5bbd5.2\u7c73\u7684\u6559\u5ba4\u94fa\u5730\u7816\uff0c\u7528\u8fb9\u957f0.4\u7c73\u7684\u65b9\u7816\u94fa\u5730\u9700\u8981\u8fd9\u79cd\u65b9\u7816\u591a\u5c11\u5757\uff1f\uff088*5.2\uff09\uff0f\uff080.4*0.4\uff09=260\u5757
8x5.2 0.4x0.4x100
70×50÷(5×5)=70×2=140绛旓細70脳50梅(5脳5)=70脳2=140
绛旓細鍏堟妸浼氳瀹ょ殑闈㈢Н绠楀嚭鏉ワ紝闈㈢Н涓9脳6=54m²锛岀劧鍚庢妸鏂圭爾鐨勫崟浣嶆崲绠楁垚绫筹紝3鍒嗙背=0.3绫筹紝灏忔柟鐮栫殑闈㈢Н涓0.3脳0.3=0.09銕★紝54梅0.09=600锛岄渶瑕600鍧楁柟鐮
绛旓細闂鏋滄瘡鍧楀効0.4骞虫柟绫崇殑鏂圭爾閾哄湴,闇瑕佽繖 鍏夋槑闈掑皯骞村鍑嗗缁欓暱5.8绫炽佸30绫崇殑,鍓у満,閾哄湴鐮栥傞棶濡傛灉姣忓潡鍎0.4骞虫柟绫崇殑鏂圭爾閾哄湴,闇瑕佽繖绉嶈繖绉嶆柟鐮栧灏戝潡?... 鍏夋槑闈掑皯骞村鍑嗗缁欓暱5.8绫炽佸30绫崇殑,鍓у満,閾哄湴鐮栥傞棶濡傛灉姣忓潡鍎0.4骞虫柟绫崇殑鏂圭爾閾哄湴,闇瑕佽繖绉嶈繖绉嶆柟鐮栧灏戝潡? 灞曞紑 鎴戞潵绛 2涓洖绛 #鐑#...
绛旓細绗竴绉嶏紝闀縳瀹锛岀湅鐪嬮暱澶氬皯鍧楀澶氬皯鍧椼傝绠楀紡锛(8/0.2)*(6/0.2)=1200鍧 绗簩绉嶏細(8*6)/0.2^2=1200鍧 鏄庣櫧浜嗚閲囩撼
绛旓細灏忕孩瀹惰缁欓暱8绫筹紝瀹5绫鐨勫鍘呭湴闈㈤摵鍦扮爾锛9鍧楀湴鐮栦竴骞虫柟绫筹紝浠栧鑷冲皯瑕8脳5脳9=360鍧
绛旓細锛8*5.2锛夛紡锛0.4*0.4锛=260鍧
绛旓細50鍒嗙背=5绫锛岋紙7+5锛壝2=24锛堢背锛夛紝7脳5=35锛堝钩鏂圭背锛夛紝绛旓細杩欏箙鐢荤殑鍛ㄩ暱鏄24绫筹紝闈㈢Н鏄35骞虫柟绫筹紟
绛旓細8*6=48m2 48*2=96鍧
绛旓細绛:闀夸负70鍘樼背;瀹戒负3鍘樼背;鎴栬呴暱涓30;瀹戒负7鍘樼背銆傜5棰:鏈変竴涓鏂逛綋,杈归暱涓2鍘樼背,姹傝繖涓鏂逛綋鐨勮〃闈㈢Н?绛旀:2*2*6=24(骞虫柟鍘樼背) 绗6棰:鏈変竴涓暱鏂逛綋,闀2鍘樼背,楂2鍘樼背,瀹1鍘樼背,姹傝〃闈㈢Н?绛旀:(2*2+2*1+2*1)*2=16(骞虫柟鍘樼背) 绗7棰:涓鍧楅暱鏂逛綋鐨勬湪鏉,闀2绫,瀹5绫,鍘8绫,瀹冪殑琛...
绛旓細(6+5)x2=22(绫)