(12十24+80)x50用简便方法计算i

(12十24+80)x50
=12×50+24×50+80×50
=600+1200+4000
=5800

(12鍗24鍗80)x50绠渚胯繍绠,鎬庝箞鍋氥
绛旓細=12脳50+24脳50+80脳50 =600+1200+4000 =1800+4000 =5800 =

(12+24+80)x50鐨勭畝渚胯绠?
绛旓細鍙互杩欐牱绠渚胯绠楋細

(12鍗24+80)x50鐢ㄧ畝渚挎柟娉曡绠梚
绛旓細(12鍗24+80)x50 =12脳50+24脳50+80脳50 =600+1200+4000 =5800

(12鍗24鍗8o)脳5o绠渚胯绠
绛旓細(12鍗24鍗8o)脳5o =12脳50+24脳50+80脳50 =600+1200+4000 =5800

(12x24鍗80)x50鎬庢牱绠渚胯繍绠,璋㈣阿澶у
绛旓細涔樻硶鍒嗛厤寰嬨愰噰绾虫槸涓绉嶇編寰枫

鐢ㄧ畝渚胯繍绠楄绠(12鍗24鍗80)x5
绛旓細(12鍗24鍗80)x5 =12x5+24x5+80x5 =60+100+400 =560

鐢ㄧ畝渚胯繍绠楄绠(12鍗24鍗80)x51000
绛旓細(12鍗24鍗80)x51000 =116*51000 =116*锛50000+1000锛=5800000+116000 =5916000

25x(24鍗12)绠渚胯绠
绛旓細25x(24鍗12)=25脳锛40-4锛=1000-100 =900

12脳50+75脳2绠渚胯绠?
绛旓細绠渚胯绠椾负:12脳50+75脳2 =2脳6脳50+25脳3脳2 =2脳50脳6+25脳2脳3 =100脳6+50脳3 =600+150 =750

24脳(50 鍗4)绠渚胯绠?
绛旓細24X50鍗24x4 =1200+96 =1296