一加二加三加四加五加六一直加到一千等于几
\u4e00\u52a0\u4e8c\u52a0\u4e09\u52a0\u56db\u52a0\u4e94\u52a0\u516d\u4e00\u76f4\u52a0\u5230\u4e00\u767e\u7b49\u4e8e\u51e0\u9996\u9879\u52a0\u672b\u9879\u4e58100\u96642=5050
\u53ef\u4ee5\u7528\u6570\u5b66\u5bb6\u9ad8\u65af\u7684\u65b9\u6cd5\uff1a
1+2+3+4+5+\u2026\u2026+2000=\uff081+2000\uff09+\uff082+1999\uff09\u2026\u2026+\uff081000+1001\uff09=2001\u00d71000=2001000
\u4e5f\u53ef\u4ee5
=2000+\uff081+1999\uff09+\uff082+1998\uff09\u2026\u2026+\uff08999+1001\uff09+1000=2000+2000\u00d7999+1000=2001000
\u9644\uff1a1787\u5e74\uff0c\u5728\u5fb7\u56fd\u4e00\u6240\u4e61\u6751\u5c0f\u5b66\u7684\u4e09\u5e74\u7ea7\u8bfe\u5802\u91cc\uff0c\u6570\u5b66\u8001\u5e08\u51fa\u4e86\u4e00\u9053\u8ba1\u7b97\u9898\uff1a
\u3000\u30001\uff0b2\uff0b3\uff0b4\uff0b5\uff0b\u2026\uff0b98\uff0b99\uff0b100\u3002
\u3000\u3000\u628a100\u4e2a\u6570\u4e00\u4e2a\u4e00\u4e2a\u5730\u52a0\u8d77\u6765\uff0c\u8fd9\u4ef6\u4e8b\u8ba9\u4e09\u5e74\u7ea7\u7684\u5c0f\u540c\u5b66\u6765\u505a\uff0c\u662f\u4e00\u79cd\u8003\u9a8c\u3002
\u3000\u3000\u4e0d\u6599\uff0c\u8001\u5e08\u521a\u8bf4\u5b8c\u9898\u76ee\uff0c\u73ed\u7ea7\u91cc\u7684\u4e00\u4f4d\u5b66\u751f\uff0c\u540d\u53eb\u9ad8\u65af\uff0c\u5c31\u628a\u4ed6\u5199\u597d\u7b54\u6848\u7684\u5c0f\u77f3\u677f\u4ea4\u4e0a\u53bb\u4e86\u3002
\u3000\u3000\u8d77\u521d\u8001\u5e08\u6beb\u4e0d\u5728\u610f\u3002\u8fd9\u4e48\u5feb\u5c31\u4ea4\u6765\uff0c\u8c01\u77e5\u9053\u5199\u4e86\u4e9b\u4ec0\u4e48\u5462\uff1f
\u3000\u3000\u540e\u6765\u53d1\u73b0\uff0c\u5168\u73ed\u53ea\u6709\u4e00\u4e2a\u4eba\u505a\u5bf9\uff0c\u5c31\u662f\u8fd9\u4f4d\u98de\u5feb\u4ea4\u5377\u7684\u9ad8\u65af\u3002
\u3000\u3000\u9ad8\u65af\u89e3\u7b54\u7684\u65b9\u6cd5\u66f4\u4f7f\u8001\u5e08\u60ca\u8bb6\u4e0d\u5df2\u3002
\u3000\u3000\u9ad8\u65af\u628a\u8fd9100\u4e2a\u6570\u4ece\u4e24\u5934\u5f80\u4e2d\u95f4\uff0c\u4e00\u8fb9\u53d6\u4e00\u4e2a\uff0c\u914d\u8d77\u5bf9\u6765\uff0c1\u548c100\uff0c2\u548c99\uff0c3\u548c98\uff0c\u2026\uff0c\u5171\u8ba1\u914d\u621050\u5bf9\uff0c\u6bcf\u4e00\u5bf9\u4e24\u4e2a\u6570\u76f8\u52a0\u90fd\u7b49\u4e8e101\uff0c\u56e0\u800c\u539f\u5f0f\uff1d101\u00d750\uff1d5050\u3002
1+2+3+...+1000
=(1+1000)*1000/2
=1001*500
=500500（首项加末项的和乘以项数除以二，等差数列公式）
表示成 1000！ 。就完事了
绛旓細5051锛岀敤1+100,2+99...鍔犱笅鍘伙紝灏辨槸50涓101锛岀劧鍚庡姞涓1锛屽氨鏄5050+1=5051
绛旓細1/1+2+1/1+2+3+鈥︹+1/1+2+3+鈥︹+10 =2/2x3+2/3x4+鈥︹+2/10x11 =2x(1/2-1/3+1/3-1/4+鈥︹+1/10-1/11)=2x(1/2-1/11)=1-2/11 =9/11
绛旓細5051
绛旓細1銆佷竴鍔犱竴绛変簬浜屻2銆涓鍔犱簩绛変簬涓夛紝浜屽姞浜岀瓑浜庡洓銆3銆涓鍔犱笁绛変簬鍥涳紝浜屽姞涓绛変簬浜旓紝涓夊姞涓夌瓑浜庡叚銆4銆涓鍔犲洓绛変簬浜旓紝浜屽姞鍥涚瓑浜庡叚锛涓夊姞鍥绛変簬涓冿紝鍥涘姞鍥涚瓑浜庡叓銆5銆涓鍔犱簲绛変簬鍏紝浜屽姞浜旂瓑浜庝竷锛屼笁鍔犱簲绛変簬鍏紝鍥涘姞浜绛変簬涔濓紝浜斿姞浜旂瓑浜庡崄銆6銆涓鍔犲叚绛変簬涓冿紝浜屽姞鍏瓑浜庡叓锛屼笁鍔犲叚绛変簬...
绛旓細绛夊樊鏁板垪銆傜粨鏋滄槸绗竴涓暟涓庢渶鍚庝竴涓暟鐨勫拰涔樹互涓暟鍐嶉櫎浠2 1+2+3+...+10 =锛1+10锛墄10/2 =55
绛旓細1+1+2+...+6 浠庣2涓暟鍒版渶鍚庝竴涓暟鏄瓑宸暟鍒 绛夊樊鏁板垪姹傚拰锛氾紙棣栭」+鏈」锛*椤规暟/2=(1+6)*6/2=21 鍐嶅姞涓婁釜1,鎵浠ュ悎涓22
绛旓細鏈夋椂闂存寜璁＄畻鏈 鍙涓嶆寜閿欒偗瀹氭槸5050 杩樻湁涓涓柟娉 鏄暟瀛﹀楂樻柉鎯冲嚭鏉ョ殑 1+100=101 2+99=101 3+98=101 銆傘傘備互姝ょ被鎺 棣栭」+鏈」=101 100涓暟閲岄潰涓鍏辨湁50瀵硅繖鏍风殑鏁板瓧 涔熷氨鏄101涔樹互50=5050
绛旓細鍥涘姞浜绛変簬涔濓紝浜斿姞浜旂瓑浜庡崄銆涓鍔犲叚绛変簬涓冧簩鍔犲叚绛変簬鍏紝涓夊姞鍏瓑浜庝節锛屽洓鍔犲叚绛変簬鍗侊紝浜斿姞鍏绛変簬鍗佷竴锛鍏姞鍏瓑浜庡崄浜岋紝 涓鍔犱竷绛変簬鍏紝浜屽姞涓冪瓑浜庝節锛屼笁鍔犱竷绛変簬鍗侊紝鍥涘姞涓冪瓑浜庡崄涓锛屼簲鍔犱竷绛変簬鍗佷簩锛屽叚鍔犱竷绛変簬鍗佷笁锛屼竷鍔犱竷绛変簬鍗佸洓銆備竴鍔犲叓绛変簬涔濓紝浜屽姞鍏瓑浜庡崄锛屼笁鍔犲叓绛変簬鍗佷竴锛屽洓鍔犲叓...
绛旓細瑙ｏ細鍘熷紡=1+2+1+2+3+4+5+6 =3+1+2+3+4+5+6 =4+2+3+4+5+6 =6+3+4+5+6 =9+4+5+6 =13+5+6 =18+6 =24
绛旓細涓鍔犲叚绛変簬涓冿紝涓鍔犲叚绛変簬涓 涓鍔犱竷绛変簬鍏紝涓鍔犱竷绛変簬鍏 涓鍔犲叓绛変簬涔濓紝涓鍔犲叓绛変簬涔 涓鍔犱節绛変簬鍗侊紝涓鍔犱節绛変簬鍗 浜屽姞涓绛変簬涓夛紝浜屽姞涓绛変簬涓 浜屽姞浜岀瓑浜庡洓锛屼簩鍔犱簩绛変簬鍥 浜屽姞涓绛変簬浜旓紝浜屽姞涓夌瓑浜庝簲 浜鍔犲洓绛変簬鍏紝浜屽姞鍥涚瓑浜庡叚 浜鍔犱簲绛変簬涓冿紝浜屽姞浜旂瓑浜庝竷 浜屽姞鍏瓑浜庡叓锛屼簩鍔犲叚绛変簬鍏 ...
