2×13×5×6简便方法运算？ 2×13乘5×3简便方法脱式计算
2/13\u00d75\u7b80\u4fbf\u8ba1\u7b97\u3002\u4e00\u4e2a\u5206\u6570\u4e0e\u6574\u6570\u76f8\u4e58\uff0c\u5982\u679c\u5206\u6bcd\u80fd\u591f\u7ea6\u5206\uff0c\u5c31\u5148\u7ea6\u5206\uff0c\u518d\u76f8\u4e58\uff0c\u5982\u679c\u4e0d\u80fd\u7ea6\u5206\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u76f8\u4e58\uff0c\u7b54\u6848\u4e3a10/13.\u89c1\u56fe\u7247\u5427\uff1a
\u7b54\u6848\u770b\u5230\u4e86\u5417\uff0c\u6ce8\u610f\u70b9\u91c7\u7eb3\u554a
2\u00d713\u4e585\u00d73\u7b80\u4fbf\u65b9\u6cd5\u8131\u5f0f\u8ba1\u7b97
=2x5x13x3
=10x39
=390
绛旓細涓涓垎鏁颁笌鏁存暟鐩镐箻锛屽鏋滃垎姣嶈兘澶熺害鍒嗭紝灏卞厛绾﹀垎锛屽啀鐩镐箻锛屽鏋滀笉鑳界害鍒嗭紝灏卞彲浠ョ洿鎺ョ浉涔锛岀瓟妗堜负10/13.瑙佸浘鐗囧惂锛氱瓟妗堢湅鍒颁簡鍚楋紝鏈涢噰绾筹紝璋㈣阿锛
绛旓細724脳5 169梅13鐢ㄧ畝渚挎柟娉曡绠 724脳5 =724脳10梅2 =7240梅2 =3620 169梅13 =117梅13+52梅13 =9+4 =13 38.67鍔68.23绛掍究鏂规硶 鎷栧紡璁＄畻 38+68+(0.67+0.23锛=
绛旓細鍥炵瓟锛23脳10.17脳30. 151脳100.13脳3脳10
绛旓細绗竴涓細鍘熷紡=4x10x 28x25=100x280=28000 绗簩涓細鍘熷紡=10x39=390
绛旓細绠渚胯繍绠 =13*(25*2)=13*50 =650
绛旓細浣犲ソ锛屽叾绠渚胯繍绠杩囩▼濡備笅锛歭2脳4脳65 =6x2x4x65 =65x2x4x6 =130x4x6 =520x6 =312O 甯屾湜鎴戠殑鍥炵瓟鍙互甯姪鍒颁綘
绛旓細瑕佽繘琛绠渚胯绠锛屽彲浠ヨ冭檻浠ヤ笅鍑犱釜鏂规硶锛1.浼扮畻锛氬湪涓浜涙儏鍐典笅锛屼笉闇瑕佺簿纭绠楋紝鍙渶瑕佷竴涓繎浼肩殑绛旀鍗冲彲銆備綘鍙互閫氳繃浼扮畻鏁板瓧鐨勫ぇ灏忔垨閲囩敤杩戜技鍊兼潵绠鍖栬绠椼備緥濡傦紝灏嗕竴涓緝澶х殑鏁板瓧鑸嶅叆鍒版渶鎺ヨ繎鐨勬暣鏁版垨鍗佷綅鏁帮紝浠ヤ究鏇存柟渚胯绠椼2.浣跨敤杩戜技鍏紡鎴栬鍒欙細瀵逛簬涓浜涘父瑙佺殑璁＄畻闂锛屽彲浠ヤ娇鐢ㄨ繎浼煎叕寮忔垨瑙勫垯...
绛旓細浠ヤ笅鏄竴浜涘父瑙佺殑绠渚胯绠楁柟娉锛氬揩閫熺畻涔樻硶锛氬揩閫熻绠椾袱涓袱浣嶆暟鐨勪箻绉紝鍙互灏嗕袱涓暟鐨勪釜浣嶆暟鍜屽崄浣嶆暟鐩镐箻锛岀劧鍚庡皢杩欎袱涓Н鐩稿姞锛屽啀鍦ㄧ粨鏋滅殑宸︿晶鍐欎笅绗竴涓暟鐨勫崄浣嶆暟锛屽彸渚у啓涓嬬浜涓暟鐨勪釜浣嶆暟銆備緥濡傦紝璁＄畻36脳45锛屽厛璁＄畻6脳5=30鍜3脳4=12锛岀劧鍚庡皢瀹冧滑鐩稿姞锛屽緱鍒42銆傛渶鍚庯紝鍦ㄧ粨鏋滅殑宸︿晶鍐欎笅3...
绛旓細浜銆佹媶鍒嗘硶 椤惧悕鎬濅箟锛屾媶鍒嗘硶灏辨槸涓轰簡鏂逛究璁＄畻鎶婁竴涓暟鎷嗘垚鍑犱釜鏁般傝繖闇瑕佹帉鎻′竴浜涒滃ソ鏈嬪弸鈥濓紝濡傦細2鍜5锛4鍜5锛2鍜25锛4鍜25锛8鍜125绛夈傚垎鎷嗚繕瑕佹敞鎰忎笉瑕佹敼鍙樻暟鐨勫ぇ灏忋備緥锛32脳125脳25=8脳4脳125脳25=锛8脳125锛壝楋紙4脳25锛=1000脳100=100000 125脳88=125脳锛8脳11锛=125脳8 脳...
绛旓細绠渚胯繍绠锛屽氨鏄埄鐢ㄨ繍绠楀畾寰嬫垨鑰呮槸杩愮畻鎬ц川锛屽阀鐢ㄧ壒娈婃暟涔嬮棿鐨勭壒鎬ц繘琛屽阀绠 鍒╃敤杩愮畻瀹氬緥銆傚埄鐢ㄥ姞娉曠殑浜ゆ崲寰嬪拰缁撳悎寰嬶紝涔樻硶鐨勪氦鎹㈠緥銆佺粨鍚堝緥鍜屽垎閰嶅緥锛屽彲浠ヤ娇璁＄畻绠渚銆25脳13脳2 = 25脳2脳13 = 50脳13 = 650
