小学生4年级数学题根据图形判断abc那条线段最短，问其长度为点A.B之间多少？
\u5c0f\u5b66\u751f\u56db\u5e74\u7ea7\u6570\u5b66\u9898\u5206\u5f00\u8003\u8651
\uff084 5 6\uff09\u7684\u516c\u500d\u6570\u8f6c\u4e863\u6b21 \u6240\u4ee5\u80cc\u5bf9\u8001\u5e08
4 5 6\u7684\u516c\u500d\u6570\u662f60 \u53ea\u67091\u4e2a
\uff084 5\uff09\uff084 6\uff09\uff085 6\uff09\u7684\u516c\u500d\u6570\u8f6c\u4e86\u4e24\u6b21 \uff08\u4e0d\u8003\u865160\u4e86\uff09\u6240\u4ee5\u9762\u5bf9\u8001\u5e08
4 5\u7684\u516c\u500d\u6570\u662f20 40 \u67092\u4e2a
4 6\u7684\u516c\u500d\u6570\u662f12 24 36 48 \u67094\u4e2a
5 6\u7684\u516c\u500d\u6570\u662f30 \u67091\u4e2a
4 5 6\u5206\u522b\u7684\u500d\u6570\u5373\u9664\u53bb\u4e0a\u65b9\u7684\u6570\u5b57 \u53ea\u8f6c\u4e861\u6b21 \u6240\u4ee5\u80cc\u5bf9\u8001\u5e08
4\u7684\u500d\u6570\u670960/4=15\u4e2a \u4f46\u662f\u51cf\u53bb\u4e0a\u65b9\u7684\u5219\u526915-7=8\u4e2a
5\u7684\u500d\u6570\u670960/5=12\u4e2a \u4f46\u662f\u51cf\u53bb\u4e0a\u65b9\u7684\u5219\u526912-4=8\u4e2a
6\u7684\u500d\u6570\u670960/6=10\u4e2a \u4f46\u662f\u51cf\u53bb\u4e0a\u65b9\u7684\u600e\u526910-6=4\u4e2a
\u6240\u4ee5\u4e00\u5171\u67098+8+4=20\u4e2a\u540c\u5b66\u80cc\u5bf9\u8001\u5e08
\u6240\u4ee5\u670960-20=40\u4e2a\u540c\u5b66\u9762\u5bf9\u8001\u5e08
1\u3002\u5728\u4e0b\u9762\u7684\u6570\u4e2d\u95f4\u586b\u4e0a\u201c+\u201d\u3001\u201c-\u201d\uff0c\u4f7f\u8ba1\u7b97\u7ed3\u679c\u4e3a100\u3002123456789=100
2.ABCD\uff0bACD\uff0bCD=1989\uff0c\u6c42A\u3001B\u3001C\u3001D\u3002
3.\u25a14\u25a1\u25a1\uff0d3\u25a189=3839\u3002
4.1ABCDE\u00d73=ABCDE1\uff0c\u6c42A\u3001B\u3001C\u3001D\u3001E\u3002
\u4e8c\u3001\u627e\u89c4\u5f8b
6\u3002\u627e\u627e\u89c4\u5f8b\u586b\u6570
(1)75\uff0c3\uff0c74\uff0c3\uff0c73\uff0c3\uff0c()\uff0c()\uff1b
(2)1\uff0c4\uff0c5\uff0c4\uff0c9\uff0c4\uff0c()\uff0c()\uff1b
(3)3\uff0c2\uff0c6\uff0c2\uff0c12\uff0c2\uff0c()\uff0c()\uff1b
(4)76\uff0c2\uff0c75\uff0c3\uff0c74\uff0c4\uff0c()\uff0c()\uff1b
(5)2\uff0c3\uff0c4\uff0c5\uff0c8\uff0c7\uff0c()\uff0c(0)\uff1b
(6)2\uff0c1\uff0c4\uff0c1\uff0c8\uff0c1\uff0c()\uff0c()\u3002
7\u3002\u5728()\u5185\u586b\u5165\u9002\u5f53\u7684\u6570
(1)1\uff0c1\uff0c2\uff0c3\uff0c5\uff0c8\uff0c()\uff0c()\uff1b
(2)0\uff0c2\uff0c2\uff0c4\uff0c6\uff0c10\uff0c()\uff0c()\uff1b
(3)1\uff0c3\uff0c4\uff0c7\uff0c11\uff0c18\uff0c()\uff0c()\uff1b
(4)1\uff0c1\uff0c1\uff0c3\uff0c5\uff0c9\uff0c()\uff0c()\uff1b
(5)0\uff0c1\uff0c2\uff0c3\uff0c6\uff0c11\uff0c()\uff0c()\uff1b
8\u3002\u627e\u89c4\u5f8b\u5728()\u5185\u586b\u4e0a\u5408\u9002\u7684\u6570
(1)0\uff0c1\uff0c3\uff0c8\uff0c21\uff0c55\uff0c()\uff1b
(2)2\uff0c6\uff0c12\uff0c20\uff0c30\uff0c42\uff0c()\uff1b
(3)1\uff0c2\uff0c4\uff0c7\uff0c11\uff0c16\uff0c()\u3002
9\u3002\u4e0b\u9762\u7684\u6570\u5217\u6392\u5217\u6709\u4e00\u5b9a\u89c4\u5f8b\uff0c\u627e\u51fa\u5b83\u7684\u53d8\u5316\u89c4\u5f8b\uff0c\u5728()\u5185\u586b\u4e0a\u5408\u9002\u7684\u6570\u3002
(1)1\uff0c6\uff0c7\uff0c12\uff0c13\uff0c18\uff0c19\uff0c()\uff1b
(2)1\uff0c3\uff0c6\uff0c8\uff0c16\uff0c18\uff0c()\uff0c()\uff1b
(3)1\uff0c4\uff0c3\uff0c8\uff0c5\uff0c12\uff0c7\uff0c()
(4)1000\uff0c970\uff0c200\uff0c180\uff0c40\uff0c30\uff0c()\uff0c()\u3002
解释：
AB 两点间 连接的方式有 曲线c。折线a+b 以及线段AB .
答案为 线段。当年教材是 两点间的距离，线段最短。
12
图呢？
根据七上的定理，两点之间线段最短，所以答案为A.B之间的线段（你没给图，我不知到a。b哪条是线段）
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