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銆愬皬瀛︽暟瀛︺�戝寳甯堝ぇ鐗堝洓骞寸骇鏁板涓婂唽銆婅繍绠楀緥銆?
娴嬭瘯棰樿繍绠楀緥銆嬫祴璇曢
涓�銆?/p>
濉┖銆?/p>
1.
鏍规嵁杩愮畻瀹氬緥
;
鍦ㄢ枴閲屽～涓婂悎閫傜殑鏁?/p>
;
鍦ㄢ棆閲屽～涓婅繍绠楃鍙枫�?/p>
鈻∶?/p>
35
鈼嬧枴脳
23 78+35
鈼嬧枴
+78 54+123+46=123+
锛堚枴
+46
锛?/p>
锛?/p>
1
5
锛?/p>
20
锛壝?/p>
4=
鈻∶椻枴鈼嬧枴脳鈻?/p>
26
脳
25
脳
4=26
脳锛堚枴脳鈻?/p>
锛?/p>
b
脳
a+25
脳鈻?/p>
=
锛堚枴鈼嬧枴锛壝?/p>
b
锛?/p>
17+
鈻★級脳鈻?/p>
=
鈻∶?/p>
5
鈼?/p>
5
脳
3
2.
濉竴濉�?/p>
锛?/p>
1
锛?/p>
150
脳锛?/p>
84-39
锛壝?/p>
6;
绗竴姝ョ畻锛?/p>
锛夋硶
;
绗簩姝ョ畻
( )
娉?/p>
;
绗笁姝ョ畻
( )
娉?/p>
锛?/p>
2
锛夎绠楋紙
100-
2
锛壝?/p>
30
涓?/p>
100-
2
脳
30
缁撴灉鐩稿樊锛?/p>
锛?/p>
(3)
鎶?/p>
52+15=40,2
脳
40=80;
鍒楁垚缁煎悎绠楁槸锛?/p>
锛?/p>
;
鎶?/p>
30-10=20,3
脳
20=60,
鍒楁垚缁煎悎绠楀紡鏄紙
锛夈�?/p>
浜屻�?/p>
鍒ゆ柇锛堝鐨勬墦鈥溾垰鈥?/p>
;
閿欑殑鎵撯�溍椻�濓級锛堟瘡棰?/p>
2
鍒嗭級
1
銆?/p>
102
脳
98=
锛?/p>
100+2
锛壝?/p>
98
杩欓噷杩愮敤浜嗕箻娉曠殑鍒嗛厤寰嬨�傗�︹�︼紙
锛?/p>
2
銆?/p>
36
脳
25=
锛?/p>
9
脳
4
锛壝?/p>
25=9+4
脳
25
鈥︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︼紙
锛?/p>
3
銆?/p>
125
脳
17
脳
8=125
脳
8
脳
17
杩欓噷鍙繍鐢ㄤ簡涔樻硶缁撳悎寰嬨�傗�︹�︼紙
锛?/p>
4
銆?/p>
179+204=179+200+4
鈥︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︹�︼紙
锛?/p>
涓夈�侀�夋嫨锛堝皢姝ｇ‘绛旀鐨勫簭鍙峰～鍦ㄦ嫭鍙蜂腑锛夛紙姣忛
2
鍒嗭級
1
銆?/p>
125+67+75=67+
锛?/p>
125+75
锛夊簲鐢ㄤ簡锛?/p>
锛夈�?/p>
鈶犲姞娉曚氦鎹㈠緥
鈶″姞娉曠粨鍚堝緥
鈶㈠姞娉曚氦鎹㈠緥鍜屽姞娉曠粨鍚堝緥
2.
璁＄畻
27
脳
125
脳
8=27
脳锛?/p>
125
脳
8
锛夋椂杩愮敤浜嗕箻娉曪紙
锛夈�?/p>
鈶犵粨鍚堝緥
鈶″垎閰嶅緥
鈶氦鎹㈠緥
3
銆?/p>
56+56
脳
4
涓庯紙
锛夌浉绛夈�?/p>
鈶?/p>
56
脳锛?/p>
4+1
锛?/p>
鈶?/p>
56
脳
4+1
鈶?/p>
4
脳锛?/p>
56+1
锛?/p>
4
銆?/p>
347-98
鐢ㄧ畝渚挎柟娉曡绠楁槸锛?/p>
锛夈�?/p>
鈶?/p>
347-100-2
鈶?/p>
347-
锛?/p>
100+2
锛?/p>
鈶?/p>
347-100+2
5
銆佺敤瀛楁瘝琛ㄧず涔樻硶鍒嗛厤寰嬫槸锛?/p>
锛夈�?/p>
鈶?/p>
a
脳
b=b
脳
a
鈶?/p>
(a
脳
b)
脳
c=a
脳
(b
脳
c)
鈶?/p>
(a+b)c=a
脳
c+b
脳
c
6. 218
脳
99
鐨勭畝渚跨畻娉曟槸锛?/p>
锛?/p>
鈶?/p>
218
脳
100-218
鈶?/p>
218
脳
100+218
鈶?/p>
217
脳
99+99
鍥涖�佽绠?/p>
1
銆佺洿鎺ュ啓鍑哄緱鏁帮紙姣忛
1
鍒嗭級