数学里的倍数到底是怎么回事,15是5的3倍,那5的2倍是10,5的一倍也是10吗? 倍数怎么算?
\u6570\u5b66\u91cc\u7684\u500d\u6570\u5230\u5e95\u662f\u600e\u4e48\u56de\u4e8b\uff0c15\u662f5\u76843\u500d\uff0c\u90a35\u76842\u500d\u662f10\uff0c5\u7684\u4e00\u500d\u4e5f\u662f10\u5417\uff1f5\u7684\u4e00\u500d\u662f5
5\u589e\u52a0\u4e00\u500d\u662f10
\u500d\u6570\u7684\u7b97\u6cd5\uff1a\u5c06\u8fd9\u4e2a\u6570\u4e58\u4ee5\u4efb\u610f\u4e00\u4e2a\u6b63\u6574\u6570\u5f97\u5230\u7684\u79ef\u5c31\u662f\u8fd9\u4e2a\u6570\u7684\u500d\u6570\u4e86\u3002
\u5982 7\u00d71=7\uff0c7\u662f7\u7684\u500d\u6570\uff0c\u662f7\u76841\u500d\u6570\uff0c
7\u00d75=35\uff0c35\u662f7\u7684\u500d\u6570\uff0c\u662f7\u76845\u500d\u6570\u3002
\u8865\u5145\uff1a
1\u3001\u500d\u6570\u7684\u5b9a\u4e49\uff1a\u4e00\u4e2a\u6570\u80fd\u88ab\u53e6\u4e00\u4e2a\u6570\u6574\u9664\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f\u53e6\u4e00\u4e2a\u6570\u7684\u500d\u6570\u3002
\u5982\uff1a
\u246016\u80fd\u88ab16\u6574\u9664\uff0c\u5546\u662f1\uff0c16\u662f16\u7684\u7684\u500d\u6570\uff0c16\u662f16\u76841\u500d\uff1b
\u246116\u80fd\u88ab8\u6574\u9664\uff0c\u5546\u662f2\uff0c16\u662f8\u7684\u500d\u6570\uff0c16\u662f8\u76842\u500d\u3002
2\u3001\u6b64\u5916\uff0c\u4e00\u4e2a\u6570\u4e0e\u67d0\u4e00\u6b63\u6574\u6570\u7684\u79ef\u90fd\u662f\u8fd9\u4e2a\u6570\u7684\u500d\u6570\u3002
\u5982\uff1a
4\u4e0e5\u7684\u79ef\u662f20\uff0c\u8fd9\u4e2a\u79ef20\u662f4\u7684\u500d\u6570\uff0c20\u662f4\u76845\u500d\uff0c
\u8fd9\u4e2a\u79ef20\u4e5f\u662f5\u7684\u500d\u6570\uff0c20\u662f5\u76844\u500d\u3002
\u6269\u5c55\u8d44\u6599\uff1a\u5e38\u7528\u6570\u5b57\u500d\u6570\u7684\u7279\u5f81\uff1a
\uff081\uff09\u6570\u5b572\u7684\u500d\u6570\u7684\u7279\u5f81\uff1a
\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\uff09\u6570\u5b573\u7684\u500d\u6570\u7684\u7279\u5f81\uff1a
\u4e00\u4e2a\u6570\u7684\u5404\u4f4d\u6570\u4e4b\u548c\u662f3\u7684\u500d\u6570\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f3\u7684\u500d\u6570\u3002
\uff083\uff09\u6570\u5b574\u7684\u500d\u6570\u7684\u7279\u5f81\uff1a
\u4e00\u4e2a\u6570\u7684\u672b\u4e24\u4f4d\u662f4\u7684\u500d\u6570\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f4\u7684\u500d\u6570\u3002
\uff084\uff09\u6570\u5b575\u7684\u500d\u6570\u7684\u7279\u5f81\uff1a
\u4e00\u4e2a\u6570\u7684\u672b\u5c3e\u662f0\u62165\uff0c\u8fd9\u4e2a\u6570\u5c31\u662f5\u7684\u500d\u6570\u3002
\uff085\uff09\u6570\u5b576\u7684\u500d\u6570\u7684\u7279\u5f81\uff1a
\u4e00\u4e2a\u6570\u53ea\u8981\u80fd\u540c\u65f6\u88ab2\u548c3\u6574\u9664\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u5c31\u80fd\u88ab6\u6574\u9664\u3002
5的一倍还是5,如果说比5大一倍或多一倍,5+5=10。
5的一倍,5x1=5
5扩大二倍,5+5x2=15
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