72x78十36×44怎么巧算？ 178x78一78x78巧算怎么做?
156x78\u4e00156x14\u534136x156\u6c42\u5de7\u7b97\u539f\u5f0f
=156\u00d7\uff0878-14+36\uff09
=156\u00d7100
=15600
\u5e0c\u671b\u5bf9\u4f60\u6709\u5e2e\u52a9\uff0c\u6ee1\u610f\u8bf7\u53ca\u65f6\u91c7\u7eb3\uff0c
\u4f60\u7684\u91c7\u7eb3\u662f\u6211\u56de\u7b54\u7684\u52a8\u529b\uff01
178x78=13884
78x78=6084
13884-6084=7800
所以结果等于7200
绛旓細2.7脳4.3+27脳0.48+0.27脳8 = 2.7脳4.3 + 2.7脳4.8 + 2.7脳0.8 = 2.7脳(4.3 + 4.8 + 0.8)= 2.7脳(10 - 0.1)= 27 - 2.7 = 24.3
绛旓細10-8=2 (骞) 绛:2骞村墠鐖哥埜鐨勫勾榫勬槸濂冲効鐨5鍊嶃 璁粌1 1.鐖风埛浠婂勾72宀,瀛欏瓙浠婂勾12宀,鍑犲勾鍚庣埛鐖风殑骞撮緞鏄瓩瀛愮殑5鍊?鍑犲勾鍓嶇埛鐖风殑骞撮緞鏄瓩瀛愮殑13鍊? 2.鍏勪粖骞11宀,寮熶粖骞8宀併傚厔寮熷悇鏄灏戝瞾鏃,鍏勫紵骞撮緞涔嬪拰鏄粖骞寸殑3鍊? 渚2銆佺埗浜蹭粖骞存瘮鍎垮瓙澶36宀,5骞村悗鐖朵翰鐨勫勾榫勬槸鍎垮瓙鐨4鍊,浠婂勾鍎垮瓙鍑犲瞾? [鍒...
绛旓細鍘熷紡 =156脳锛78-14+36锛=156脳100 =15600 甯屾湜瀵逛綘鏈夊府鍔╋紝婊℃剰璇峰強鏃堕噰绾筹紝浣犵殑閲囩撼鏄垜鍥炵瓟鐨勫姩鍔涳紒
绛旓細78+(804-480)梅36=78+324梅36=78+(360-36)梅36=78鍗360梅36-36梅36=78+10-1=88-1=87
绛旓細1. 3/7 脳 49/9 - 4/3 2. 8/9 脳 15/36 + 1/27 3. 12脳 5/6 鈥 2/9 脳3 4. 8脳 5/4 + 1/4 5. 6梅 3/8 鈥 3/8 梅6 6. 4/7 脳 5/9 + 3/7 脳 5/9 7. 5/2 -锛 3/2 + 4/5 锛8. 7/8 + 锛 1/8 + 1/9 锛9. 9 脳 5/6 + 5/6 10....
绛旓細123️100171113鎬庝箞宸х畻 123脳1001梅7梅11梅13 =123脳1001梅锛7脳11脳13锛 =123脳1001梅1001 =123脳1 =123 36 ️63️63鎬庝箞宸х畻 36 ️63️63 =3x12x6-3x63 =3x锛72-63锛 =3x9 =27 锛 浣犲ソ锛屾湰棰樺凡瑙ｇ瓟,濡傛灉婊℃剰 璇风偣鍙充笅瑙...
绛旓細锛60锛0.1梅1锛=10 锛61锛3.14脳7=21.98 锛62锛2/5-1/4=0.15 锛63锛6300梅70=90 锛64锛45脳3/15=9 锛65锛1/7-1/9=2/63 锛66锛36-4/9=320/9 锛67锛45-0.5=44.5 锛68锛5/6-1/6=2/3 锛69锛2/5+1/2=0.9 锛70锛3/4+1/6=11/12 锛71锛2x2/5+27/5=6...
绛旓細锛60锛0.1梅1锛=10 锛61锛3.14脳7=21.98 锛62锛2/5-1/4=0.15 锛63锛6300梅70=90 锛64锛45脳3/15=9 锛65锛1/7-1/9=2/63 锛66锛36-4/9=320/9 锛67锛45-0.5=44.5 锛68锛5/6-1/6=2/3 锛69锛2/5+1/2=0.9 锛70锛3/4+1/6=11/12 锛71锛2x2/5+27/5=6...
绛旓細4銆400锛273锛127 5銆327锛嬶紙96锛127锛6銆72脳98 7銆442锛103锛142 8銆999锛99锛9 9銆67脳5脳2 10銆25脳锛78脳4锛11銆72脳125 12.9000梅125梅8 13銆400梅25 14銆25脳36 15銆103脳27 16銆76脳102 17銆3600梅25梅4 18銆99脳35 19銆侊紙25锛12锛壝4 20銆56脳27锛27脳44 21銆...
绛旓細192锛嶏紙54锛38锛塢脳67 81432梅(13脳52锛78)锛947锛599锛夛紜76脳64 60锛(9.5锛28.9)梅0.18 2.881梅0.43锛0.24脳3.5 0.8脳銆15.5-(3.21+5.79)銆曪紙31.8 3.2脳4锛壝5 194锛64.8梅1.8脳0.9 36.72梅4.25脳9.9 3.416梅锛0.016脳35锛0.8脳[(10锛6.76)梅1.2]...
