4+个3运用加减乘除法如何等于8 3×4×8×5＝（3×4）×（8×5运用了乘法分配律是对是错...

5\u4e2a5\u600e\u4e48\u7528\u52a0\u51cf\u4e58\u9664\u6cd5\u7b49\u4e8e24\uff1f

\u63d0\u4f9b\u4e09\u4e2a\uff0c\u4efb\u541b\u9009\u62e9\uff1a
5\u00d7(5-5\u00f75\u00f75)=24
5\u00d7[5-(5\u00f75\u00f75)]=24
(5\u00d75\u00d75-5)\u00f75=24

\u5e0c\u671b\u5e2e\u5230\u4f60 \u671b\u91c7\u7eb3 \u8c22\u8c22 \u52a0\u6cb9

\u4e0d\u5bf9\uff0c\u4e58\u6cd5\u5206\u914d\u5f8b\u5e94\u8be5\u662fa(b+c)=ab+ac\uff0c\u4f60\u7684\u8fd9\u4e2a\u662f\u4e58\u6cd5\u7ed3\u5408\u5f8b\uff1a a*b*c=a*(b*c)

3×3-3÷3=8望采纳。

鍥涗釜3鐢鍔犲噺涔橀櫎鐨勬柟娉曞緱4,涓嶇敤鎷彿
绛旓細3涔3绛変簬9锛9鍔3绛変簬12锛12闄や互3绛変簬4銆

4涓3鍔犲噺涔橀櫎閮藉彲浠ョ敤缁撴灉绛変簬8鎬庝箞鍋
绛旓細3脳3-3梅3=8

4涓3鍔犲噺涔橀櫎绛変簬4涓嶅姞鎷彿
绛旓細3+3+3+3=12 12梅4=3 3鍐+1涓嶅氨=4浜嗗悧锛熷弬鑰冭祫鏂欙細鑷繁

鍥涗釜涓夊姞鍑忎箻闄闅忎究鐢,鎬庝箞绛変簬鍥涓嶈兘鐢ㄦ嫭鍙枫
绛旓細涓嶇敤鎷彿鍙敤鍔犲噺涔橀櫎鏃犺В锛屽姞涓婇樁涔樻垨鏍瑰彿鍒欏彲锛屽锛3+3-3!梅3=4 鈭3脳鈭3+3梅3锛4

4涓3浣跨敤鍔犲噺涔橀櫎,涓嶅甫鎷彿鏈鍚绛変簬4
绛旓細{3*3+3}/3=4

4涓3鍔犲噺涔橀櫎绛変簬2(4绉嶆柟娉)
绛旓細(3*3-3)/3 3/3+3/3

鍥涗釜涓鐢鍔犲噺涔橀櫎杩愮畻绗﹀彿鎬庢牱璁＄畻鐨勭粨鏋滀竴绛変簬4
绛旓細(3脳3+3)梅3=4锛侊紒锛佹瑙ｅ晩锛侊紒

4涓3鎬庝箞鍔犲噺涔橀櫎绛変簬8
绛旓細3*3-3/3

鐢4涓3鎬庝箞杩愮畻缁撴灉鎵嶆槸8?
绛旓細3x3涓(3梅3)=8銆俓x0d\x0a\x0d\x0a鍦ㄦ暟瀛楃畝鍗曠殑鎯呭喌涓嬶紝涓鑸鍏堣冭檻杩愮敤鍔犲噺涔橀櫎娉璁＄畻銆4涓3寰堝鏄撴兂鍒3涔樹互3绛変簬9,9鍦ㄤ粈涔堟儏鍐典笅鑳藉緱鍒8锛岀浉淇″ぇ瀹堕兘鑳芥兂鍒9鍑忓幓1绛変簬8锛屼篃灏辨槸璇村墿涓嬩袱涓暟瀛3闇瑕佸緱鍑鸿繍绠楃粨鏋1锛岀浉淇″彲浠ユ鏃犻毦搴﹀湴鎯冲埌3闄や互3绛変簬1锛屼篃灏辨槸璇存渶鍚庢荤粨鏄3x3涓(3梅3)...

鏁板棰4涓3鐢鍔犲噺涔橀櫎鎬庝箞绠绛変簬14
绛旓細33/3+3=14