5的一倍是多少?2倍呢?列算式 一倍和两倍是什么意思?5的一倍是多少两倍又是多少?
5\u7684\u4e00\u500d\u662f\u591a\u5c11?2\u500d\u5462?\u5217\u7b97\u5f0f5\u7684\u4e00\u500d\u5c31\u662f\u4e581\u5566
5*1=5,
5\u7684\u4e24\u500d\u4e582
5*2=10
\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6765\u8bf4\u660e 2\u76841\u500d\u662f2\uff0c2\u76842\u500d\u5c31\u662f4 \u4e5f\u5c31\u662f\u8bf4\u4e00\u4e2a\u6570x x\u76841\u500d\u7b49\u4e8ex*1=x\uff0c\u662f\u5b83\u672c\u8eab x\u76842\u500d\u7b49\u4e8ex*2=2x\uff0c\u6bd41\u500d\u591a1\u500d\u3002
\u4e00\u500d\u662f\u6307\u4e00\u4e2a\u6570\u4e58\u4e00\uff0c\u4e5f\u5c31\u662f\u4e0e\u8fd9\u4e2a\u6570\u76f8\u540c\u7684\u6570\u3002\u53cc\u500d\u5c31\u662f\u4e24\u500d\uff0c\u6307\u4e00\u4e2a\u6570\u4e58\u4e8c\u3002 \u6bd4\u5982\uff1a2\u7684\u4e00\u500d\u662f2\uff0c2\u7684\u53cc\u500d\u662f4\u3002\u4f46\u662f\u5982\u679c\u8bf4\u591a\u4e00\u500d\uff0c\u90a3\u4e48\u5c31\u4e0d\u662f\u4e00\u500d\u7684\u6982\u5ff5\u4e86\uff0c\u6bd4\u59824\u6bd42\u591a\u4e00\u500d\uff0c\u4e5f\u5c31\u662f\u8bf44=2+2=2\u00d72\u3002 \u4e00\u822c\u6765\u8bf4\uff0c\u8bf44\u662f2\u7684\u4e00\u500d\u662f\u4e00\u79cd\u901a\u4fd7\u3001\u7701\u7565\u7684\u8bf4\u6cd5\u3002
5\u76841\u500d\u8fd8\u662f5\uff0c5\u4e58\u4ee52 ,\u6570\u7684\u4e00\u500d\u662f\u5176\u672c\u8eab\uff0c\u500d\u5c31\u50cf\u662f"\u4efd"\u7684\u610f\u601d. \u4e00\u500d\u4e0e\u4e8c\u500d\u7684\u533a\u522b\u5c31\u53ef\u4ee5\u7406\u89e3\u6210\u4e00\u4efd\u4e0e\u4e24\u4efd\u7684\u533a\u522b\u4e86\u30025\u7684\u4e00\u500d\u662f5 5\u589e\u52a0\u4e00\u500d\u662f10\u3002
\u4e00\u4e2a\u6574\u6570\u80fd\u591f\u88ab\u53e6\u4e00\u4e2a\u6574\u6570\u6574\u9664\uff0c\u8fd9\u4e2a\u6574\u6570\u5c31\u662f\u53e6\u4e00\u6574\u6570\u7684\u500d\u6570\u3002\u598215\u80fd\u591f\u88ab3\u62165\u6574\u9664\uff0c\u56e0\u6b6415\u662f3\u7684\u500d\u6570\uff0c\u4e5f\u662f5\u7684\u500d\u6570\u3002 \u4e00\u4e2a\u6570\u9664\u4ee5\u53e6\u4e00\u6570\u6240\u5f97\u7684\u5546\u3002\u5982a\u00f7b=c\uff0c\u5c31\u662f\u8bf4\uff0ca\u662fb\u7684\u500d\u6570\u3002
5*1=5,
5的两倍乘2
5*2=10
5的一倍是多少?
5×1=5
2倍呢?
5×2=10
5的一倍是5,2倍是10
1*5=5
2*5=10
5
*1
______
5
5
*2
______
10
5*1=5
5*2=10
5*1=5
5*2=10
绛旓細棣栧厛鏁存暟鍖呭惈锛氭鏁存暟锛岄浂锛岃礋鏁存暟銆傚叾娆★紝-10鑳借5鏁撮櫎锛屾弧瓒冲嶆暟瀹氫箟鎵浠ュ彲浠ヨ-10鏄5鐨鍊嶆暟銆傚悓鏍凤紝0鍙互琚换浣曢潪闆舵暣鏁版暣闄わ紝鎵浠0鏄换浣曢潪闆舵暣鏁扮殑鍊嶆暟銆傝屼笉鏄换鎰忔暣鏁扮殑鍊嶆暟銆
绛旓細鍦嗙殑鍗婂緞澧炲姞涓鍊,绛変簬鍗婂緞鎵╁ぇ涓哄師鏉鐨2鍊,闈㈢Н鎵╁ぇ涓哄畠鐨勫钩鏂瑰.2*2=4锛堝嶏級 闂鍑犲,4-1=3锛堝嶏級鎴戠幇鍦ㄥ叚骞寸骇,姝ゆ柟娉曠畝鍗曟槗鎳,鎴戝垰鍒氬鍟!
绛旓細澶氬皯鐨勪袱鍊嶆槸鍚 鈥斺 棰樹富鏄惁鎯宠闂滃灏戠殑涓ゅ嶆槸鍏濓紵4銆傛眰涓涓暟鐨勫嚑鍊嶏紝涔熷氨鏄眰鍑犱釜涓涓暟鐨勫拰鏄灏戙傚彲浠鍒楀嚭鍔犳硶绠楀紡锛屼竴涓暟+涓涓暟锛岃繕鍙互鐢ㄤ箻娉曠畻寮忥紝涓涓暟*鍑犲嶃傛墍浠ュ垪寮忎负4*2=8锛4鐨勪袱鍊嶆槸8锛屼竴涓暣鏁拌兘澶熻鍙︿竴...4鎵╁ぇ2鍊嶆槸澶氬皯?A, 8 B,12 C,16 濡備綍鐞嗚В?
绛旓細0.1缈涓鍊嶆槸0.1銆傛牴鎹鎰鍒楃畻寮锛0.1x1 =0.1 鎵浠0.1缈讳竴鍊嶆槸0.1銆備竴涓暟闄や互鍙︿竴鏁版墍寰楃殑鍟嗐傚a梅b=c锛屽氨鏄锛宎鏄痓鐨勫嶆暟銆備緥濡傦細A梅B=C锛屽氨鍙互璇碅鏄疊鐨凜鍊嶃傚嶆暟鐨勬ц川锛氳嫢涓涓暣鏁扮殑涓綅鏁板瓧鎴幓锛屽啀浠庝綑涓嬬殑鏁颁腑锛屽噺鍘讳釜浣嶆暟鐨2鍊锛屽鏋滃樊鏄7鐨勫嶆暟锛屽垯鍘熸暟鑳借7鏁撮櫎...
绛旓細1鐩存帴浣跨敤涔樻硶绠楀紡璁$畻鍗冲彲锛1鐨1鍊琛ㄧず涓1脳1=1銆125鐨勫嶆暟涓変綅鏁颁互涓(涓嶅寘鍚笁浣嶆暟)锛岀湅鍚庝笁浣嶆槸鍚︽槸125鐨勫嶆暟銆傚悎鏁扮殑鍊嶆暟鍏跺疄灏辨槸璐ㄦ暟鐨勪箻绉紝鍙鎺屾彙浜嗕竴浜涜川鏁扮殑鍊嶆暟锛屼竴浜涘悎鏁扮殑鍊嶆暟涔熶細鎺屾彙浜嗐傚涓婃枃鎻愬埌鐨4銆6銆8銆12銆傚舰寮忥細鎶婄浉绛夌殑寮忓瓙锛堟垨瀛楁瘝琛ㄧず鐨勬暟锛夐氳繃鈥=鈥濊繛鎺ヨ捣鏉ャ傜瓑寮忓垎...
绛旓細1800鐨勪竴鍊嶆槸1800銆傛牴鎹鎰鍒楃畻寮锛1800x1 =1800 鎵浠1800鐨勪竴鍊嶆槸1800銆備竴涓暟鐨勫嶆暟鏈夋棤鏁颁釜锛屼篃灏辨槸璇翠竴涓暟鐨勫嶆暟鐨勯泦鍚堜负鏃犻檺闆嗐 娉ㄦ剰锛氫笉鑳芥妸涓涓暟鍗曠嫭鍙仛鍊嶆暟锛屽彧鑳借璋佹槸璋佺殑鍊嶆暟銆傚嶆暟鐨勬ц川锛氳嫢涓涓暣鏁扮殑鏈笁浣嶄笌7鍊嶇殑鍓嶉潰鐨勯殧鍑烘暟鐨勫樊鑳借19鏁撮櫎锛屽垯杩欎釜鏁拌兘琚19鏁撮櫎銆傝嫢涓涓...
绛旓細锛侊紒锛佽繕鍏ㄦ槸閿欑殑锛侊紒锛1锛2锛岃嫢99寮犵エ鍏ㄦ槸澶т汉鍒欐湁99*4=396锛屼絾鍙湁300锛屽浜96鍏冿紝杩欐槸澶т汉绁ㄥ拰灏忓绁ㄧ殑宸犳垚鐨勶紝鍒96/锛4-2.5锛=64浣嶅皬瀛╋紝99-64=35浣嶅ぇ浜 3锛屽摜鍝ユ瘮寮熷紵澶4宀併5骞村墠杩樻槸姣斿紵寮熷ぇ4宀侊紝鍙堟槸涓ゅ嶏紝鍒涓鍊涓4锛屼袱鍊嶄负8锛岃繖鏄5骞村墠鐨 8+5=13宀 4锛...
绛旓細鍝ュ摜鏌愪竴骞寸殑宀佹暟涓庡紵寮熶粖骞寸殑宀佹暟鐩稿悓锛岄偅涓骞村摜鍝ョ殑宀佹暟鎭版伆鏄紵寮熷瞾鏁扮殑2鍊 璇存槑鍝ュ摜姣斿紵寮熷ぇ鐜板湪寮熷紵宀佹暟鐨勪竴鍗 璁惧紵寮熺幇鍦ㄥ崰鎬诲勾榫2浠斤紝鍝ュ摜鍗2+2/2=3浠斤紝鍏5浠 鎵浠ュ摜鍝ヤ粖骞55梅5脳3=33锛堝瞾锛
绛旓細260鐨勪竴鍊嶆槸520锛屼竴涓氮婕殑鏁板瓧
绛旓細鍙互鐢ㄨВ鏂圭▼鏉ヨВ绛斻傝娣樻窐浠婂勾x宀侊紝閭d箞濡堝浠婂勾灏辨槸5x宀侊紝鏍规嵁棰樼洰鍒楃畻寮锛5x鈥攛=32 瑙f柟绋嬪緱x=8 鎵浠ユ窐娣樹粖骞8宀侊紝濡堝浠婂勾灏辨槸8脳5=40宀