小学六年级数学附加题 六年级常见数学附加题
\u516d\u5e74\u7ea7\u6570\u5b66\u9644\u52a0\u9898\u4e00\uff0c
\uff081\uff09\uff0c\u8981\u5206\u4e3a1/3\uff0c1/2\uff0c\u6a58\u5b50\u4e2a\u6570\u8981\u4e3a6\u7684\u500d\u6570\u3002
\uff082\uff09\uff0c1/2\u5c114\u4e2a\uff0c\u4e2a\u6570\u8981\u5927\u4e8e8\uff0c
\u56e0\u6b64\uff0c\u8fd9\u7b50\u6a58\u5b50\u6700\u5c11\u670912\u4e2a\uff0c\u621618\uff0c24\uff0c\u7b496\u7684\u500d\u6570\u3002\u6bd4\u598212\u4e2a\uff0c\u5219\u5206\u6210 6\u4e2a\uff0c2\u4e2a\uff0c4\u4e2a\u3002
18\u4e2a\uff0c\u5219\u5206\u6210 8\uff0c5\uff0c6 \u3002
\u4e8c\uff0c\u62fc\u6210\u8fd1\u4f3c\u957f\u65b9\u5f62\u540e\uff0c\u5b83\u7684\u5468\u957f\u4e3a\uff1a
2*3.14r+2r=33.12 \u5f0f\u4e2dr\u4e3a\u5706\u7684\u534a\u5f84\u3002
\u5f97r=4 \u5398\u7c73
\u5219\u5706\u5f62\u7eb8\u7247\u7684\u9762\u79ef\u4e3a
3.14*4*4=50.24 \u5e73\u65b9\u5398\u7c73
\u89c2\u5bdf\u4e0b\u7684\u6bcf\u9879\u90fd\u662f\uff08n+1\uff09^3-n,\u4f60\u53ef\u4ee5\u4e00\u6b21\u8bd5\u8bd5\u7684\uff01
1*2*3+2*3*4+3*4*5+\u00b7\u00b7\u00b7+25*26*27+26*27*28
= (2³ - 2) + (3³ - 3) + \u2026\u2026 + (27³ - 27)
= 1³ + 2³ + 3³ + \u2026\u2026 + 27³ - (1+2+3+\u2026\u2026+27)
\u5957\u7528\u8fde\u7eed\u7acb\u65b9\u548c\u516c\u5f0f\u3001\u7b49\u5dee\u6570\u5217\u6c42\u548c\u516c\u5f0f
= \uff081+2+3+\u2026\u2026+27)^2 - (1+27) * 27 / 2
= [(1+27)*27/2]^2-378
=378^2-378
=378*377
=142506
1x2+2x3+3x4+4x5+...+2002x2003
=1/3*1*2*3+1/3[2*3*4-1*2*3]+1/3[3*4*5-2*3*4]+....+1/3[2002*2003*2004-2001*2002*2003]
=1/3*2002*2003*2004
=2678684008
\u7532\u4e59\u4e8c\u4eba\u5206\u522b\u4eceAB\u4e24\u5730\u540c\u65f6\u51fa\u53d1\u76f8\u5411\u800c\u884c\uff0c\u51fa\u53d1\u65f6\u4ed6\u4eec\u7684\u901f\u5ea6\u6bd4\u662f3\uff1a2\uff0c\u76f8\u9047\u540e\u7532\u7684\u901f\u5ea6\u63d0\u9ad81/5\uff0c\u4e59\u7684\u901f\u5ea6\u63d0\u9ad82/5\uff0c\u5f53\u7532\u5230\u8fbeB\u5730\u65f6\uff0c\u4e59\u79bbA\u5730\u8fd8\u670926KM\u3002\u4e24\u5730\u76f8\u8ddd\u591a\u5c11KM\uff1f
\u8bbeAB\u4e24\u5730\u76f8\u8dddx\u5343\u7c73
[2/(3+2)x]/[3\u00d7(1+1/5)]=[3/(3+2)x-26]/[2\u00d7(1+2/5)]
x/9=3x/14-130/14
13x/126=130/14
x=90
1/1*3+1/2*4+1/3*5+1/4*6+1/5*7......1/98*100+1/99*101
=\uff081-1/3+1/2-1/4+1/3-1/5+1/4-1/6+1/5-1/7+\u2026\u2026+1/98-1/100+1/99-1/101\uff09\u00f72
=\uff081+1/2-1/100-1/101\uff09\u00f72
=15049/10100\u00f72
=15049/20200
\u7532\u3001\u4e59\u3001\u4e19\u4e09\u4eba\u540c\u53bb\u5546\u573a\u8d2d\u7269\uff0c\u7532\u82b1\u94b1\u6570\u76841/2\u7b49\u4e8e\u4e59\u82b1\u94b1\u6570\u76841/3\uff0c\u4e59\u82b1\u94b1\u6570\u76843/4\u7b49\u4e8e\u4e19\u82b1\u94b1\u6570\u76843/5\uff0c\u7ed3\u679c\u4e19\u6bd4\u7532\u591a\u82b1\u4e8698\u5143\u94b1\uff0c\u95ee\u4ed6\u4eec\u5171\u82b1\u4e86\u591a\u5c11\u94b1?
98\u00f7\uff083/4\u00f73/5-1/3\u00f71/2\uff09\u00d7\uff081+1/3\u00f71/2+3/4\u00f73/5\uff09
=98\u00f7\uff085/4-2/3\uff09\u00d7\uff081+2/3+5/4\uff09
=98\u00f77/12\u00d735/12
=168\u00d735/12
=490\u5143
\u7532\u548c\u4e59\u8fdb\u884c100\u7c73\u8dd1\u6b65\u6bd4\u8d5b\uff08\u5047\u8bbe\u4e24\u4eba\u7684\u901f\u5ea6\u4fdd\u6301\u4e0d\u53d8\uff09\uff0c\u5f53\u7532\u8dd1\u4e8675\u7c73\u65f6\uff0c\u4e59\u8dd1\u4e8660\u7c73\u3002\u90a3\u4e48\uff0c\u5f53\u7532\u5230\u8fbe\u7ec8\u70b9\u65f6\uff0c\u4e59\u8dd1\u4e86\u591a\u5c11\u7c73 \uff1f
100\u00d760/75
=100\u00d74/5
=80\u7c73
6\u5206\u4e4b1+12\u5206\u4e4b1+24\u5206\u4e4b1+48\u5206\u4e4b1+96\u5206\u4e4b1+192\u5206\u4e4b1
=1/6\u00d7\uff081+1/2+1/4+1/8+1/16+1/32\uff09
=1/6\u00d7\uff081-1/32\uff09
=1/6-1/192
=31/192
\u56e0\u65705\u7684\u4e2a\u6570\u51b3\u5b9a\u672b\u5c3e0\u7684\u4e2a\u6570
2008\u00f75=401\u4e2a\uff08\u53d6\u6574\uff09
2008\u00f725=80\u4e2a\uff08\u53d6\u6574\uff09
2008\u00f7125=16\u4e2a\uff08\u53d6\u6574\uff09
2008\u00f7625=3\uff08\u53d6\u6574\uff09
401+80+16+3=500\u4e2a
1*2*3*4*5*6*\u2026\u2026*2008\u672b\u5c3e\u6709500\u4e2a0
\u4e00\u8f86\u6c7d\u8f66\u4ece\u7532\u5730\u5f00\u5f80\u4e59\u5730\uff0c\u5982\u679c\u8f66\u901f\u63d0\u9ad820%\uff0c\u53ef\u4ee5\u6bd4\u539f\u5b9a\u65f6\u95f4\u63d0\u524d1\u5c0f\u65f6\u5230\u8fbe\uff0c\u5982\u679c\u4ee5\u539f\u901f\u5ea6\u884c\u9a76120\u5343\u7c73\u540e\uff0c\u518d\u5c06\u901f\u5ea6\u63d0\u9ad825%\uff0c\u5219\u53ef\u63d0\u524d40\u5206\u949f\u5230\u8fbe\uff0c\u6c42\u7532\u3001\u4e59\u4e24\u5730\u76f8\u8ddd\u591a\u5c11\u5343\u7c73\uff1f
40\u5206=2/3\u5c0f\u65f6
\u539f\u5b9a\u65f6\u95f41\u00f7\u30101-1/\uff081+20%\uff09\u3011=6\u5c0f\u65f6
\u539f\u6765\u901f\u5ea6\u3010120-120/\uff081+25%\uff09\u3011\u00f7\u30106-2/3-6/\uff081+25%\uff09\u3011=24\u00f78/15=45\u5343\u7c73/\u5c0f\u65f6
\u7532\u4e59\u76f8\u8ddd45\u00d76=270\u5343\u7c73
\u56db(1)\u73ed\u6570\u5b66\u671f\u672b\u6d4b\u8bd5\u5168\u73ed\u5e73\u5747\u6210\u7ee992\u5206,\u7537\u751f\u53c2\u52a0\u6d4b\u8bd5\u7684\u4eba\u6570\u662f18\u4eba,\u5e73\u5747\u5206\u662f89\u5206,\u5973\u751f\u7684\u5e73\u5747\u5206\u662f94\u5206,\u6c42\u5973\u751f\u4eba\u6570(\u7528\u5c0f\u5b66\u56db\u5e74\u7ea7\u7684\u65b9\u6cd5\u505a)
\uff0892-89\uff09\u00d718\u00f7\uff0894-92\uff09=27\u4eba
\u9648\u660e\u9a91\u8f66\u65c5\u884c,\u5e73\u8def\u6bcf\u5929\u8d7038\u5343\u7c73,\u5c71\u8def\u6bcf\u5929\u8d7023\u5343\u7c73\uff0c\u4ed615\u5929\u5171\u8d70\u4e86450\u5343\u7c73\u3002\u95ee\u8fd9\u671f\u95f4\u4ed6\u8d70\u4e86\u591a\u5c11\u5343\u7c73\u5c71\u8def
\uff0838*15-450\uff09/\uff0838-23\uff09*23=8*23=184\u5343\u7c73
设甲原来有7X吨 那么乙就有6X吨根据题意列出如下等式（7X-360）/（6X+360）=2/3X=200吨 那么甲原来有7*200=1400吨=1400000千克乙6*200=1200吨=1200000千克
设甲粮库原有x千克大米，3（x-360）=2（6/7x+360） 解得x=1400 6/7x=1200甲粮库原有1400千克大米，乙粮库原有1200千克大米
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绛旓細51/2/3 x 3/5 + 71/3/4 x 4/7 + 91/4/5 x5/9 =155/3 x 3/5 + 287/4 x 4/7 + 459/5 x 5/9 =31+41+51 =123
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绛旓細鍋囪鏉瓙鐨勫閲忔槸100浠,涓鏉函鐗涘ザ涔熸槸100浠,鍠濆幓30浠,杩樺墿70浠界函鐗涘ザ,鐜板湪鍔犳按30浠,鍙堝噾鎴愪簡100浠,鍏朵腑鐗涘ザ鏄70浠,鍠濆幓50%,鏉腑鍓╃墰濂35浠,35浠界函鐗涘ザ鍗犳澂瀛愬閲100浠界殑鐧惧垎鏁板氨鍙互绠楀嚭鏉ヤ簡.35梅100=35
绛旓細绗竴棰橈細1.9+19.9+199.9+1999.9 =锛2-0.1锛+锛20-0.1锛+锛200-0.1锛+锛2000-0.1锛= 锛2+20+200+2000锛-0.1X5 =2222-0.5 =2221.5 绗簩棰橈細棰勪範锛1/2=1- 1/2 = 1x 1/2 1/6= 1/2 - 1/3 = 1/2 x 1/3 1/12 = 1/3 - 1/4 = 1/3 x 1/4 ...
绛旓細450/4鍒嗕箣3-450绛変簬150
