1
绗笁鍗曞厓杩愮畻瀹氬緥涓庣畝渚胯绠?/p>
绗竴璇炬椂
:
鍔犳硶浜ゆ崲寰嬨�佸姞娉曠粨鍚堝緥
鏁欏鍐呭
:
P28 (
鍔犳硶浜ゆ崲寰?/p>
) P29 (
鍔犳硶缁撳悎寰?/p>
)
鏁欏鐩爣
:
1
銆佸紩瀵煎鐢熸帰绌跺拰鐞嗚В鍔犳硶浜ゆ崲寰嬨�佺粨鍚堝緥銆?/p>
2
銆佸煿鍏诲鐢熸牴鎹叿浣撴儏鍐碉紝閫夋嫨绠楁硶鐨勬剰璇嗕笌鑳藉姏锛屽彂灞曟�濈淮鐨勭伒娲绘�с�?/p>
3
銆佸煿鍏诲鐢熷湪鍚堜綔浜ゆ祦涓帉鎻＄煡璇嗐�?/p>
鏁欏閲嶉毦鐐?/p>
:
鐞嗚В銆佹帉鎻℃帉鎻″姞娉曚氦鎹㈠緥鍜岀粨鍚堝緥銆?/p>
鏁欏杩囩▼
:
涓�銆佸墠缃�х爺绌?/p>
I
銆佽繍鐢ㄥ姞娉曚氦鎹㈠緥濉┖銆?/p>
578+422=
+578
M
锛?/p>
=N
锛?/p>
锛?/p>
=
锛?/p>
鍔犳硶浜ゆ崲寰嬪氨鏄?/p>
:
2
銆佽繍鐢ㄥ姞娉曠粨鍚堝緥濉┖锛?/p>
(48+73) +56=48+ (
+
锛?/p>
鍗?/p>
(85+69) = (
+_
)
鍗?/p>
(42+721) +a=_
+(_
锛?/p>
a
锛?/p>
鍔犳硶缁撳悎寰嬪氨鏄細
浜屻�佹柊璇炬帰璁?/p>
1
銆佸皬缁勮璁恒�佷氦娴併�?/p>
2
銆佸睍绀烘眹鎶ャ�?/p>
3
銆侀泦浣撳皬缁撱�佺偣璇勩�?/p>
涓や釜鍔犳暟浜ゆ崲浣嶇疆锛屽拰涓嶅彉銆傝繖鍙仛鍔犳硶浜ゆ崲寰嬨�傜敤瀛楁瘝琛ㄧず锛?/p>
a+b=b+a
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�傝繖鍙仛鍙硶缁撳悎寰嬨�?/p>
鐢ㄥ瓧姣嶈〃绀猴細
锛?/p>
a+b
锛?/p>
+c=a+(b+c)
4
銆佸珐鍥虹粌涔?/p>
:
涓嬮潰鐨勫摢浜涚瓑寮忚繍鐢ㄤ簡瀹氬緥
?
鍒嗗埆杩愮敤浜嗗摢浜涘畾寰?/p>
?
鍐欏湪鎷彿閲屻�?/p>