一到20的自然数中,奇数有什么偶数有什么? 在1到20的自然数中,奇数有哪些,偶数有哪些
\u5728\u81ea\u7136\u6570\u4e2d\u4e00\u5230\u4e8c\u5341\u4e2d\u5947\u6570\u6709\u54ea\u4e9b\u5076\u6570\u6709\u54ea\u4e9b\u8d28\u6570\u6709\u54ea\u4e9b\u5408\u6570\u6709\u54ea\u4e9b\u4f60\u597d\uff01\u5728\u81ea\u7136\u6570\u4e2d\u4e00\u5230\u4e8c\u5341\u4e2d\u5947\u6570\u67091\uff0c3\uff0c5\uff0c7\uff0c9\uff0c11\uff0c13\uff0c15\uff0c17\uff0c19\uff0c\u5076\u6570\u67092\uff0c4\uff0c6\uff0c8\uff0c10\uff0c12\uff0c14\uff0c16\uff0c18\uff0c20\uff0c\u8d28\u6570\u67092\uff0c3\uff0c5\uff0c7\uff0c11\uff0c13\uff0c17\uff0c19\uff0c\u5408\u6570\u67094\uff0c6\uff0c8\uff0c9\uff0c10\uff0c12\uff0c14\uff0c15\uff0c16\uff0c18\uff0c20\u3002\u7ecf\u6d4e\u6570\u5b66\u56e2\u961f\u5e2e\u4f60\u89e3\u7b54\uff0c\u8bf7\u53ca\u65f6\u91c7\u7eb3\u3002\u8c22\u8c22\uff01
\u57281~20\u7684\u81ea\u7136\u6570\u4e2d\uff0c\u5947\u6570\u6709(
1\uff0c3\uff0c5\uff0c7\uff0c9\uff0c11\uff0c13\uff0c15\uff0c17\uff0c19)\u5076\u6570\u6709\uff082\uff0c4\uff0c6\uff0c8\uff0c10\uff0c12\uff0c14\uff0c16\uff0c18\uff0c20
\uff09\u8d28\u6570\u6709\uff082\uff0c3\uff0c5\uff0c7\uff0c11\uff0c13\uff0c17\uff0c19\uff09\u5408\u6570\u6709\uff084\uff0c6\uff0c8\uff0c9\uff0c10\uff0c12\uff0c14\uff0c15\uff0c16\uff0c18\uff0c20\uff09
偶数:2,4,6,8,10,12,14,16,18,20
奇数有1,3,5,7,9,11,13,15,17,19。偶数有2,4,6,8,10,12,14,16,18,20
绛旓細濂囨暟锛1锛3锛5锛7锛9锛11锛13锛15锛17锛19 鍋舵暟锛2锛4锛6锛8锛10锛12锛14锛16锛18锛20
绛旓細1锝20鐨勮嚜鐒舵暟涓鏁版湁1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛屽伓鏁颁负2锛4锛6锛8锛10锛12锛14锛16锛18锛20锛涜川鏁版湁2锛3锛5锛7锛11锛13锛17锛19鍏8涓紝鍚堟暟鏈4锛6锛8锛9锛10锛12锛14锛15锛16锛18锛20鍏11涓紟鏁呯瓟妗堜负锛1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛2锛4锛6锛8锛10...
绛旓細1锝20鐨勮嚜鐒舵暟涓鏁版湁1銆3銆5銆7銆9銆11銆13銆15銆17銆19锛屽叡10涓紱鍋舵暟鏈2銆4銆6銆8銆10銆12銆14銆16銆18銆20锛屽叡10涓紱璐ㄦ暟鏈2銆3銆5銆7銆11銆13銆17銆19锛屽叡8涓紱鍚堟暟鏈4銆6銆8銆9銆10銆12銆14銆15銆16銆18銆20锛屽叡11涓紱鏃㈡槸濂囨暟锛屽張鏄悎鏁扮殑鏁版槸9銆15锛涙棦鏄伓鏁帮紝鍙...
绛旓細1锝20鐨勮嚜鐒舵暟涓鏁版湁1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛屽伓鏁颁负2锛4锛6锛8锛10锛12锛14锛16锛18锛20锛涜川鏁版湁2锛3锛5锛7锛11锛13锛17锛19鍏8涓紝鍚堟暟鏈4锛6锛8锛9锛10锛12锛14锛15锛16锛18锛20鍏11涓紟鏁呯瓟妗堜负锛1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛2锛4锛6锛8锛10...
绛旓細1鍒20鐨勮嚜鐒舵暟涓鏁版湁锛10 锛変釜锛屽伓鏁版湁锛10 锛変釜锛岃川鏁版湁锛 8锛変釜锛屽悎鏁版湁锛11 锛変釜銆1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 2 3 5 7 11 13 17 19 4 6 8 9 10 12 14 15 16 18 20
绛旓細鑷劧鏁1鍒20涓紝濂囨暟鏈夛細1銆3銆5銆7銆9銆11銆13銆15銆17銆19锛涘伓鏁版湁锛2銆4銆6銆8銆10銆12銆14銆16銆18銆20銆傝嚜鐒舵暟涔熺О闈炶礋鏁存暟锛1-20涔嬮棿涓鍏辨湁20涓嚜鐒舵暟锛屽叾涓笉鑳借2鏁撮櫎鐨勬暟瀛楁槸濂囨暟锛岃繖鏍风殑鏁板瓧鏈夛細1銆3銆5銆7銆9銆11銆13銆15銆17銆19鍏辫10涓紝鑳借2鏁撮櫎鐨勬暟瀛楁湁2銆4銆...
绛旓細鍦ㄨ嚜鐒舵暟1鍒20涓鏁版湁1锛3锛5锛7锛9锛11锛13锛15锛17锛19.鍏辫10涓
绛旓細1锝炵殑鑷劧鏁颁腑濂囨暟鏈1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛涘伓鏁版湁2锛4锛6锛8锛10锛12锛14锛16锛18锛20锛涚礌鏁版湁2锛3锛5锛7锛11锛13锛17锛19锛涘悎鏁版湁4锛6锛8锛9锛10锛12锛14锛15锛16锛18锛20锛庢晠绛旀涓猴細1锛3锛5锛7锛9锛11锛13锛15锛17锛19锛2锛4锛6锛8锛10锛12锛14锛16锛...
绛旓細鍦1~20鐨勮嚜鐒舵暟涓紝濂囨暟鏈( 1锛3锛5锛7锛9锛11锛13锛15锛17锛19)鍋舵暟鏈夛紙2锛4锛6锛8锛10锛12锛14锛16锛18锛20 锛夎川鏁版湁锛2锛3锛5锛7锛11锛13锛17锛19锛夊悎鏁版湁锛4锛6锛8锛9锛10锛12锛14锛15锛16锛18锛20锛
绛旓細1锝炵殑鑷劧鏁颁腑濂囨暟鏈 20梅2=10锛堜釜锛夛紝鍋舵暟涓20梅2=10锛堜釜锛夛紱璐ㄦ暟鏈2锛3锛5锛7锛11锛13锛17锛19鍏8涓紝鍚堟暟鏈4锛6锛8锛9锛10锛12锛14锛15锛16锛18锛20鍏11涓紟鎵浠1锝20鐨勮嚜鐒舵暟涓鏁版湁10涓紝鍋舵暟鏈10涓紝璐ㄦ暟鏈8涓紝鍚堟暟鏈11涓紟鏁呯瓟妗堜负锛10锛10锛8锛11锛