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小学数学必写一篇：“十进制转二进制技巧：除取余法快速掌握”
鈥?strong>鈥嬧€滃瀛愭幇鎵嬫寚绠?0浠ュ唴鍔犲噺娉曪紝鎱㈠緱鍍忔爲鎳掞紵璇曡瘯杩欐嫑锛岃绠楅€熷害缈诲€嶏紒鈥濃€?/strong>鈥?br/> 鈥斺€斿搸鍛︼紝杩欏彲涓嶆槸鍚圭墰锛佷粖澶╁挶浠氨鏉ヨ亰鑱婂皬瀛︽暟瀛﹂噷璁╁闀垮張鐖卞張鎭ㄧ殑鈥?strong>鈥嬪噾鍗佹硶鈥?/strong>鈥嬪拰鈥?strong>鈥嬬牬鍗佹硶鈥?/strong>鈥嬨€傚埆鐪嬪悕瀛楃畝鍗曪紝杩欓噷澶磋棌鐫€璁╁瀛愪粠鈥滅畻鏈洶闅炬埛鈥濋€嗚鎴愨€滃彛绠楀皬杈句汉鈥濈殑绉樺瘑姝﹀櫒锛?/p>
涓€銆佲€?strong>鈥嬩负浠€涔堣鍑戝崄娉曟槸鏁板鍚挋鐨勨€滈粍閲戦挜鍖欌€濓紵鈥?/strong>鈥?/h3>
鍏堥棶涓墡蹇冪殑闂锛氫綘瀹跺▋鏄笉鏄繕鍦ㄧ敤鈥?strong>鈥嬧€滄暟鎵嬫寚鈥濃€?/strong>鈥嬬畻8+5锛熸垨鑰呴亣鍒?5-7灏卞崱澹筹紵鍒厡锛佽繖濂楁柟娉曞氨鏄笓闂ㄨВ鍐宠繖绫婚毦棰樼殑銆?/p>
鈥?strong>鈥嬩妇涓牀瀛愨€?/strong>鈥嬸煂帮細
褰撳瀛愰亣鍒?+5鏃讹紝鎸夌収鍑戝崄娉曞彲浠ヨ繖鏍锋搷浣滐細
- 鈥?strong>鈥嬬湅澶ф暟鈥?/strong>鈥嬶細鍏堢洴浣?杩欎釜"澶у潡澶?
- 鈥?strong>鈥嬫媶灏忔暟鈥?/strong>鈥嬶細鎶?鎷嗘垚2鍜?锛堝洜涓?+2=10锛?/li>
- 鈥?strong>鈥嬪噾鍗佸姞鍓┾€?/strong>鈥嬶細8+2=10锛屽啀鍔犲墿涓嬬殑3锛岀寰?3锛?br/> 鈥?strong>鈥嬪彛璇€璁扮墷鈥?/strong>鈥嬶細"鎷嗗皬鏁拌ˉ澶ф暟锛屽噾鎴愬崄鍐嶅姞鍓╂暟"
浜屻€佲€?strong>鈥嬬牬鍗佹硶锛氬噺娉曠晫鐨勨€滃彉褰㈤噾鍒氣€濃€?/strong>鈥?/h3>
鍑忔硶姣斿姞娉曢毦锛熼偅鏄病鎺屾彙璇€绐嶏紒鐮村崄娉曠殑绮鹃珦灏辨槸鈥?strong>鈥嬧€滄媶鍗侀噸缁勨€濃€?/strong>鈥嬨€?/p>
鈥?strong>鈥嬪疄鎴樻紨绀衡€?/strong>鈥嬸煋濓細
璁＄畻15-7鏃讹細
- 鈥?strong>鈥嬫媶澶ф暟鈥?/strong>鈥嬶細鎶?5鎷嗘垚10鍜?
- 鈥?strong>鈥嬪崄鍑忔暟鈥?/strong>鈥嬶細鐢?0-7=3
- 鈥?strong>鈥嬪姞鍓╂暟鈥?/strong>鈥嬶細3+5=8锛?br/> 鈥?strong>鈥嬬绫嶅彛璇€鈥?/strong>鈥嬶細"鎷嗗ぇ鏁板垎鍑哄崄锛屽崄鍑忓噺鏁板姞鍓╂暟"
涓夈€佲€?strong>鈥嬪噾鍗佺牬鍗佸鐓ц〃锛氫竴寮犲浘鐪嬫噦鏍稿績宸紓鈥?/strong>鈥?/h3>
| 鈥?strong>鈥嬫柟娉曗€?/strong>鈥?/th> | 鈥?strong>鈥嬮€傜敤鍦烘櫙鈥?/strong>鈥?/th> | 鈥?strong>鈥嬫搷浣滆鐐光€?/strong>鈥?/th> | 鈥?strong>鈥嬬粡鍏镐緥棰樷€?/strong>鈥?/th> |
|---|---|---|---|
| 鍑戝崄娉?/td> | 20浠ュ唴杩涗綅鍔犳硶 | 鎷嗗皬鏁拌ˉ澶ф暟鍑戝崄 | 9+6=15 |
| 鐮村崄娉?/td> | 20浠ュ唴閫€浣嶅噺娉?/td> | 鎷嗗ぇ鏁板崄鍑忔暟鍔犲墿鏁?/td> | 17-8=9 |
| 骞冲崄娉?/td> | 杩炵画鍑忔硶 | 鍒嗗皬鏁颁袱娆″噺 | 13-9=4 |
| 鍊熷崄娉?/td> | 澶氫綅閫€浣嶅噺娉?/td> | 浠庨珮浣嶅€熷崄鍐嶈绠?/td> | 35-7=28 |
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- 鈥?strong>鈥嬪疄鐗╂紨绀衡€?/strong>鈥嬶細鎷?0棰楃硸锛岃瀛╁瓙浜叉墜鎷嗗垎鎴?+3鐞嗚В鍑戝崄鍘熺悊
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