同时是2、3、5的倍数的数是 同时是2,3,5的倍数的数有什么特征?
\u540c\u65f6\u662f2\uff0c3\u548c5\u7684\u500d\u6570\u6709\u54ea\u4e9b\u540c\u65f6\u662f2\uff0c3\u548c5\u7684\u500d\u6570\u670930\uff0c60\uff0c90\uff0c120\uff0c150\u7b49\u7b49\u3002
\u5206\u6790\u8fc7\u7a0b\u5982\u4e0b\uff1a
\u540c\u65f6\u662f2\uff0c3\u548c5\u7684\u500d\u6570\uff0c\u5c31\u662f2\uff0c3\u548c5\u7684\u516c\u500d\u6570\u3002
\u56e0\u4e3a2\uff0c3\u548c5\u4e09\u8005\u662f\u8d28\u6570\uff0c\u6240\u4ee5\u5b83\u4eec\u7684\u6700\u5c0f\u516c\u500d\u6570\u662f2\u00d73\u00d75=30\u3002
\u518d\u752830\uff0c\u4f9d\u6b21\u4e58\u4ee52\uff0c3\uff0c4\uff0c5\uff0c6\u7b49\u7b49\u5373\u53ef\u5f97\u52302\uff0c3\u548c5\u7684\u4e00\u4e9b\u500d\u6570\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u4e00\u4e9b\u6570\u5b57\u500d\u6570\u7684\u7279\u5f81\uff1a
\uff081\uff092\u7684\u500d\u6570
\u4e00\u4e2a\u6570\u7684\u672b\u5c3e\u662f\u5076\u6570\uff080\uff0c2\uff0c4\uff0c6\uff0c8\uff09\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f2\u7684\u500d\u6570\u3002
\uff082\uff093\u7684\u500d\u6570
\u4e00\u4e2a\u6570\u7684\u5404\u4f4d\u6570\u4e4b\u548c\u662f3\u7684\u500d\u6570\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f3\u7684\u500d\u6570\u3002
\uff083\uff094\u7684\u500d\u6570
\u4e00\u4e2a\u6570\u7684\u672b\u4e24\u4f4d\u662f4\u7684\u500d\u6570\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f4\u7684\u500d\u6570\u3002
\uff084\uff095\u7684\u500d\u6570
\u4e00\u4e2a\u6570\u7684\u672b\u5c3e\u662f0\u62165\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f5\u7684\u500d\u6570\u3002
\uff085\uff096\u7684\u500d\u6570
\u4e00\u4e2a\u6570\u53ea\u8981\u80fd\u540c\u65f6\u88ab2\u548c3\u6574\u9664\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u5c31\u80fd\u88ab6\u6574\u9664\u3002
1\u3001\u4e2a\u4f4d\u6570\u5747\u4e3a0\uff1a\u56e0\u4e3a2*5=10\uff0c\u6240\u4ee5\u8fd9\u4e2a\u6570\u4e00\u5b9a\u662f10\u7684\u500d\u6570\uff0c\u6240\u4ee5\u4e2a\u4f4d\u6570\u5747\u4e3a0\u3002
2\u3001\u5168\u90e8\u6570\u5b57\u52a0\u8d77\u6765\u548c\u4e3a3\u7684\u500d\u6570\uff1a\u56e0\u4e3a\u662f3\u7684\u500d\u6570\u7684\u6570\u90fd\u6709\u5168\u90e8\u6570\u5b57\u52a0\u8d77\u6765\u4e3a3\u7684\u500d\u6570\u8fd9\u4e2a\u7279\u5f81\u3002
3\u3001\u662f30\u7684\u500d\u6570 \uff1a\u56e0\u4e3a2\uff0a3\uff0a5\uff1d30\uff0c\u6240\u4ee5\u8fd9\u4e2a\u6570\u4e00\u5b9a\u662f30\u7684\u500d\u6570\u3002
4\u3001\u8fd9\u4e2a\u6570\u6700\u5c0f\u662f30
\u4e3e\u4f8b\uff1a30\u300160\u3001 90\u90fd\u662f\u540c\u65f6\u662f2\u30013\u30015\u7684\u500d\u6570\u3002
所以: 3的倍数: 21、24、27、30、33、36、39
2、3的倍数: 24、 30、 36
3、5的倍数: 30
2、3、5的倍数: 30
21,24,27,30,33,36,39是3的倍数,24,30,36是2、3的倍数,30是3、5的倍数,30是2、3和5的倍数。
21,24,27,30,33,36,39
24,30,36
30
30
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绛旓細2銆3銆5鐨勫嶆暟锛 30
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绛旓細鍚屾椂鏄2銆3銆5鐨勫嶆暟鏈夛細30銆60銆90銆120銆150鈥︹﹀笇鏈涜兘甯姪鍒颁綘锛岃閲囩撼璋㈣阿锛
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