绗笁鍗曞厓
杩愮畻瀹氬緥
鐭ヨ瘑鐐逛竴锛氬姞娉曡繍绠楀畾寰?/p>
銆愮煡璇嗙偣璁茶В銆?/p>
1.
鍔犳硶浜ゆ崲寰嬶細涓や釜鏁扮浉鍔狅紝浜ゆ崲鍔犳暟鐨勪綅缃紝鍜屼笉鍙樸�傜敤瀛楁瘝琛ㄧず涓?/p>
a+b=b+a
銆?/p>
2.
鍔犳硶缁撳悎寰嬶細涓変釜鏁扮浉鍔狅紝鍏堟妸鍓嶄袱涓暟鐩稿姞锛屾垨鑰呭厛鎶婂悗涓や釜鏁扮浉鍔狅紝鍜屼笉鍙樸�傜敤瀛楁瘝
琛ㄧず涓猴紙
a+b
锛?/p>
+c=a+(b+c).
3.
鍑忔硶鐨勮繍绠楁�ц川锛?/p>
锛?/p>
1
锛変竴涓暟杩炵画鍑忓幓涓や釜鏁帮紝鍙互鐢ㄨ繖涓暟鍑忓幓涓や釜鍑忔暟鐨勫拰銆傜敤瀛楁瘝
琛ㄧず涓?/p>
a-b-c=a-(b+c)
銆?/p>
锛?/p>
2
锛夊湪杩炲噺娉曚腑锛屼换鎰忎氦鎹㈠噺鏁扮殑浣嶇疆锛屽樊涓嶅彉銆傜敤瀛楁瘝琛ㄧず涓?/p>
a-b-c=a-c-b
銆?/p>
瑕佺偣鎻愮ず锛?/p>
1.
杩愮敤鍔犳硶缁撳悎寰嬫椂锛岃鎶婄粨鍚堢殑涓や釜鏁扮敤鎷彿鎷捣鏉ャ�?/p>
2.
搴旂敤鍑忔硶鐨勮繍绠楁�ц川鍙互杩涜绠�渚胯繍绠椼�?/p>
銆愬珐鍥虹粌涔犮�?/p>
1
銆佸～涓�濉?/p>
锛?/p>
1
锛変袱涓暟鐩稿姞锛屼氦鎹㈠姞鏁扮殑锛?/p>
锛?/p>
锛屽拰涓嶅彉锛岃繖鍙仛锛?/p>
锛?/p>
锛岀敤瀛楁瘝琛ㄧず
鏄紙
锛?/p>
锛?/p>
2
锛変笁涓暟鐩稿姞锛屽厛鎶婏紙
锛夌浉鍔狅紝鎴栬�呭厛鎶婏紙
锛夌浉鍔狅紝
锛?/p>
锛変笉鍙橈紝
杩欏彨鍋氾紙
锛?/p>
锛屽瓧姣嶈〃绀烘槸锛?/p>
锛?/p>
銆?/p>
2.
閫夋嫨姝ｇ‘绛旀锛屽皢搴忓彿濉湪鐩稿簲妯嚎涓娿�?/p>
鈶?/p>
41+37+13=41
锛?/p>
+37+13
锛?/p>
鈶?/p>
x+y=y+x
鈶?/p>
35+(b+65)=(35+65)+b
鈶?/p>
a+b+c=a+c+b
鈶?/p>
32+45+55=32+(45+55)
鈶?/p>
m+n+t=n+(m+t)
鍙簲鐢ㄥ姞娉曚氦鎹㈠緥鐨勬槸
鍙簲鐢ㄥ姞娉曠粨鍚堝緥鐨勬槸
鏃㈠簲鐢ㄥ姞娉曚氦鎹㈠緥鍙堝簲鐢ㄥ姞娉曠粨鍚堝緥鐨勬槸
3.
鍦紙锛夐噷濉笂鍚堥�傜殑鏁版垨瀛楁瘝銆?/p>
锛?/p>
1
锛?/p>
84+62=
锛?/p>
锛?/p>
+84
锛?/p>
2
锛?/p>
a+
锛?/p>
锛?/p>
=58+
锛?/p>
锛?/p>
锛?/p>
3
锛?/p>
172+58+42+28=
锛?/p>
172+
锛?/p>
+
锛?/p>
58+
锛?/p>
锛?/p>
4
锛?/p>
263+38+62+137=
锛?/p>
263+
锛?/p>
+
锛?/p>
38+
锛?/p>
锛?/p>
5
锛?/p>
46+35+65=
+
锛?/p>
+65
锛?/p>
锛?/p>
6
锛?/p>
356-27-73=
銆囷紙
銆?/p>
锛?/p>
锛?/p>
7
锛?/p>
478-43-78=
銆?/p>
銆?/p>
4.
鍒楃珫寮忚绠楋紝骞跺簲鐢ㄥ姞娉曚氦鎹㈠緥楠岀畻銆?/p>
547+9553=
5655+827=