小学生笔算加减法进位退技巧详解(附练习题)
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馃憠 鈥?strong>鈥嬫柟娉曚竴锛氬噾鍗佹硶鈥?/strong>鈥?br/> 涓句釜鏍楀瓙锛?6+47鎬庝箞绠楋紵
- 鍏堢畻涓綅锛?+7=13 鈫?鈥?strong>鈥嬩釜浣嶅啓3锛屽悜鍗佷綅杩?鈥?/strong>鈥嬶紙鐢讳釜灏忕澶存爣璁帮級
- 鍐嶇畻鍗佷綅锛?+4=7 鈫?鍔犱笂杩涚殑1鍙樻垚8
- 鏈€缁堢粨鏋滐細83
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馃憠 鈥?strong>鈥嬫柟娉曚簩锛氬垎姝ユ媶瑙f硶鈥?/strong>鈥?br/> 姣斿58+29锛?/p>
- 鎷嗘垚50+8+20+9
- 鍏堢畻鏁村崄鏁帮細50+20=70
- 鍐嶇畻涓綅鏁帮細8+9=17
- 鏈€鍚庡悎浣擄細70+17=87
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馃毃閫€浣嶅噺娉曠殑涓夌瑙f硶
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馃憠 鈥?strong>鈥嬬牬鍗佹硶瀹炴垬鈥?/strong>鈥?br/> 浠?2-18涓轰緥锛?/p>
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- 鍏堢畻涓綅锛?2-8=4
- 鍐嶇畻鍗佷綅锛?0-10=20
- 鍚堝苟缁撴灉锛?0+4=24
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馃憠 鈥?strong>鈥嬪钩鍗佹硶濡欐嫑鈥?/strong>鈥?br/> 姣斿61-37锛?/p>
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- 鍏ㄧ▼涓嶇敤閫€浣嶆爣璁帮紝閫傚悎蹇冪畻蹇殑瀛╁瓙
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-2潭7
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鈥?strong>鈥嬫柊鎵嬫潙浠诲姟鈥?/strong>鈥嬶紙闅惧害鈽咃級
- 27+35=鉂?/li>
- 49-16=鉂?/li>
- 63+28=鉂?/li>
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4. 85-47=鉂?br/>
5. 76+39=鉂?br/>
6. 100-63=鉂?/p>
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锛堢瓟妗堣鏂囨湯馃憞锛?/p>
馃挕鐙鏁欏蹇冨緱
鏁欎簡8骞存暟瀛﹀彂鐜帮紝鈥?strong>鈥嬭繘閫€浣嶅洶闅炬埛鈥?/strong>鈥嬪線寰€鏈夎繖浜涚壒寰侊細
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寤鸿瀹堕暱鍑嗗鈥?strong>鈥嬩笁绉嶉鑹茬瑪鈥?/strong>鈥嬶細
- 榛戣壊鍐欏師棰?/li>
- 绾㈣壊鏍囪繘閫€浣?/li>
- 钃濊壊鍐欑粨鏋?br/> 杩欐牱瑙嗚鍖哄垎鑳藉噺灏?0%鐨勭矖蹇冮敊璇紒
馃摎缁冧範棰樼瓟妗堜笌瑙f瀽
鈥?strong>鈥嬫柊鎵嬫潙绛旀鈥?/strong>鈥嬶細
- 62锛堜釜浣?+5=12杩?锛?/li>
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4. 38锛堝崄浣嶅€?鍚庡彉7-4=3锛?br/>
5. 115锛堟敞鎰忕櫨浣嶈杩?锛侊級
6. 37锛?00鐪嬩綔90+10鏉ラ€€浣嶏級
馃憠鈥?strong>鈥嬮敊棰樻湰寤鸿鈥?/strong>鈥嬶細鎶婂仛閿欑殑棰樼敤鎵嬫満鎷嶄笅鏉ワ紝姣忓懆鏁寸悊鎴愰敊棰樺崱锛屼笁涓湀鍚庢纭巼鑳芥彁楂?8%锛?/p>
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